Config(3p) Perl Programmers Reference Guide Config(3p) #
Config(3p) Perl Programmers Reference Guide Config(3p)
NNAAMMEE #
Config - access Perl configuration information
SSYYNNOOPPSSIISS #
use Config;
if ($Config{usethreads}) {
print "has thread support\n"
}
use Config qw(myconfig config_sh config_vars config_re);
print myconfig();
print config_sh();
print config_re();
config_vars(qw(osname archname));
DDEESSCCRRIIPPTTIIOONN #
The Config module contains all the information that was available to the
"Configure" program at Perl build time (over 900 values).
Shell variables from the _c_o_n_f_i_g_._s_h file (written by Configure) are stored
in the readonly-variable %Config, indexed by their names.
Values stored in config.sh as 'undef' are returned as undefined values.
The perl "exists" function can be used to check if a named variable
exists.
For a description of the variables, please have a look at the Glossary
file, as written in the Porting folder, or use the url:
https://github.com/Perl/perl5/blob/blead/Porting/Glossary
mmyyccoonnffiigg(())
Returns a textual summary of the major perl configuration values.
See also "-V" in "Command Switches" in perlrun.
ccoonnffiigg__sshh(())
Returns the entire perl configuration information in the form of the
original config.sh shell variable assignment script.
config_re($regex)
Like ccoonnffiigg__sshh(()) but returns, as a list, only the config entries
who's names match the $regex.
config_vars(@names)
Prints to STDOUT the values of the named configuration variable. Each
is printed on a separate line in the form:
name='value';
Names which are unknown are output as "name='UNKNOWN';". See also
"-V:name" in "Command Switches" in perlrun.
bbiinnccoommppaatt__ooppttiioonnss(())
Returns a list of C pre-processor options used when compiling this
_p_e_r_l binary, which affect its binary compatibility with extensions.
"bincompat_options()" and "non_bincompat_options()" are shown
together in the output of "perl -V" as _C_o_m_p_i_l_e_-_t_i_m_e _o_p_t_i_o_n_s.
nnoonn__bbiinnccoommppaatt__ooppttiioonnss(())
Returns a list of C pre-processor options used when compiling this
_p_e_r_l binary, which do not affect binary compatibility with
extensions.
ccoommppiillee__ddaattee(())
Returns the compile date (as a string), equivalent to what is shown
by "perl -V"
llooccaall__ppaattcchheess(())
Returns a list of the names of locally applied patches, equivalent to
what is shown by "perl -V".
hheeaaddeerr__ffiilleess(())
Returns a list of the header files that should be used as
dependencies for XS code, for this version of Perl on this platform.
EEXXAAMMPPLLEE #
Here's a more sophisticated example of using %Config:
use Config;
use strict;
my %sig_num;
my @sig_name;
unless($Config{sig_name} && $Config{sig_num}) {
die "No sigs?";
} else {
my @names = split ' ', $Config{sig_name};
@sig_num{@names} = split ' ', $Config{sig_num};
foreach (@names) {
$sig_name[$sig_num{$_}] ||= $_;
}
}
print "signal #17 = $sig_name[17]\n";
if ($sig_num{ALRM}) {
print "SIGALRM is $sig_num{ALRM}\n";
}
WWAARRNNIINNGG #
Because this information is not stored within the perl executable itself
it is possible (but unlikely) that the information does not relate to the
actual perl binary which is being used to access it.
The Config module is installed into the architecture and version specific
library directory ($Config{installarchlib}) and it checks the perl
version number when loaded.
The values stored in config.sh may be either single-quoted or double-
quoted. Double-quoted strings are handy for those cases where you need to
include escape sequences in the strings. To avoid runtime variable
interpolation, any "$" and "@" characters are replaced by "\$" and "\@",
respectively. This isn't foolproof, of course, so don't embed "\$" or
"\@" in double-quoted strings unless you're willing to deal with the
consequences. (The slashes will end up escaped and the "$" or "@" will
trigger variable interpolation)
GGLLOOSSSSAARRYY #
Most "Config" variables are determined by the "Configure" script on
platforms supported by it (which is most UNIX platforms). Some platforms
have custom-made "Config" variables, and may thus not have some of the
variables described below, or may have extraneous variables specific to
that particular port. See the port specific documentation in such cases.
“_a” From _U_n_i_x_._U:
This variable defines the extension used for ordinary library files.
For unix, it is _._a. The _. is included. Other possible values
include _._l_i_b.
"_exe"
From _U_n_i_x_._U:
This variable defines the extension used for executable files.
"DJGPP", Cygwin and _O_S_/_2 use _._e_x_e. Stratus "VOS" uses _._p_m. On
operating systems which do not require a specific extension for
executable files, this variable is empty.
"_o"
From _U_n_i_x_._U:
This variable defines the extension used for object files. For unix,
it is _._o. The _. is included. Other possible values include _._o_b_j.
aa “afs” From _a_f_s_._U:
This variable is set to "true" if "AFS" (Andrew File System) is used
on the system, "false" otherwise. It is possible to override this
with a hint value or command line option, but you'd better know what
you are doing.
"afsroot"
From _a_f_s_._U:
This variable is by default set to _/_a_f_s. In the unlikely case this is
not the correct root, it is possible to override this with a hint
value or command line option. This will be used in subsequent tests
for AFSness in the configure and test process.
"alignbytes"
From _a_l_i_g_n_b_y_t_e_s_._U:
This variable holds the number of bytes required to align a double--
or a long double when applicable. Usual values are 2, 4 and 8. The
default is eight, for safety.
"aphostname"
From _d___g_e_t_h_n_a_m_e_._U:
This variable contains the command which can be used to compute the
host name. The command is fully qualified by its absolute path, to
make it safe when used by a process with super-user privileges.
"api_revision"
From _p_a_t_c_h_l_e_v_e_l_._U:
The three variables, api_revision, api_version, and api_subversion,
specify the version of the oldest perl binary compatible with the
present perl. In a full version string such as _5_._6_._1, api_revision
is the 5. Prior to 5.5.640, the format was a floating point number,
like 5.00563.
_p_e_r_l_._c:iinnccppuusshh(()) and _l_i_b_/_l_i_b_._p_m will automatically search in
_$_s_i_t_e_l_i_b_/_.. for older directories back to the limit specified by
these api_ variables. This is only useful if you have a perl library
directory tree structured like the default one. See "INSTALL" for
how this works. The versioned site_perl directory was introduced in
5.005, so that is the lowest possible value. The version list
appropriate for the current system is determined in
_i_n_c___v_e_r_s_i_o_n___l_i_s_t_._U.
"XXX" To do: Since compatibility can depend on compile time options
(such as bincompat, longlong, etc.) it should (perhaps) be set by
Configure, but currently it isn't. Currently, we read a hard-wired
value from _p_a_t_c_h_l_e_v_e_l_._h. Perhaps what we ought to do is take the
hard-wired value from _p_a_t_c_h_l_e_v_e_l_._h but then modify it if the current
Configure options warrant. _p_a_t_c_h_l_e_v_e_l_._h then would use an #ifdef
guard.
"api_subversion"
From _p_a_t_c_h_l_e_v_e_l_._U:
The three variables, api_revision, api_version, and api_subversion,
specify the version of the oldest perl binary compatible with the
present perl. In a full version string such as _5_._6_._1, api_subversion
is the 1. See api_revision for full details.
"api_version"
From _p_a_t_c_h_l_e_v_e_l_._U:
The three variables, api_revision, api_version, and api_subversion,
specify the version of the oldest perl binary compatible with the
present perl. In a full version string such as _5_._6_._1, api_version is
the 6. See api_revision for full details. As a special case, 5.5.0
is rendered in the old-style as 5.005. (In the 5.005_0x maintenance
series, this was the only versioned directory in $sitelib.)
"api_versionstring"
From _p_a_t_c_h_l_e_v_e_l_._U:
This variable combines api_revision, api_version, and api_subversion
in a format such as 5.6.1 (or 5_6_1) suitable for use as a directory
name. This is filesystem dependent.
"ar"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the ar program. After Configure runs, the value
is reset to a plain "ar" and is not useful.
"archlib"
From _a_r_c_h_l_i_b_._U:
This variable holds the name of the directory in which the user wants
to put architecture-dependent public library files for $package. It
is most often a local directory such as _/_u_s_r_/_l_o_c_a_l_/_l_i_b. Programs
using this variable must be prepared to deal with filename expansion.
"archlibexp"
From _a_r_c_h_l_i_b_._U:
This variable is the same as the archlib variable, but is filename
expanded at configuration time, for convenient use.
"archname"
From _a_r_c_h_n_a_m_e_._U:
This variable is a short name to characterize the current
architecture. It is used mainly to construct the default archlib.
"archname64"
From _u_s_e_6_4_b_i_t_s_._U:
This variable is used for the 64-bitness part of $archname.
"archobjs"
From _U_n_i_x_._U:
This variable defines any additional objects that must be linked in
with the program on this architecture. On unix, it is usually empty.
It is typically used to include emulations of unix calls or other
facilities. For perl on _O_S_/_2, for example, this would include
_o_s_2_/_o_s_2_._o_b_j.
"asctime_r_proto"
From _d___a_s_c_t_i_m_e___r_._U:
This variable encodes the prototype of asctime_r. It is zero if
d_asctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_asctime_r is defined.
"awk"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the awk program. After Configure runs, the
value is reset to a plain "awk" and is not useful.
bb “baserev” From _b_a_s_e_r_e_v_._U:
The base revision level of this package, from the _._p_a_c_k_a_g_e file.
"bash"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"bin"
From _b_i_n_._U:
This variable holds the name of the directory in which the user wants
to put publicly executable images for the package in question. It is
most often a local directory such as _/_u_s_r_/_l_o_c_a_l_/_b_i_n. Programs using
this variable must be prepared to deal with _~_n_a_m_e substitution.
"bin_ELF"
From _d_l_s_r_c_._U:
This variable saves the result from configure if generated binaries
are in "ELF" format. Only set to defined when the test has actually
been performed, and the result was positive.
"binexp"
From _b_i_n_._U:
This is the same as the bin variable, but is filename expanded at
configuration time, for use in your makefiles.
"bison"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the bison program. After Configure runs, the
value is reset to a plain "bison" and is not useful.
"byacc"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the byacc program. After Configure runs, the
value is reset to a plain "byacc" and is not useful.
"byteorder"
From _b_y_t_e_o_r_d_e_r_._U:
This variable holds the byte order in a "UV". In the following,
larger digits indicate more significance. The variable byteorder is
either 4321 on a big-endian machine, or 1234 on a little-endian, or
87654321 on a Cray ... or 3412 with weird order !
cc “c” From _n_._U:
This variable contains the \c string if that is what causes the echo
command to suppress newline. Otherwise it is null. Correct usage is
$echo $n "prompt for a question: $c".
"castflags"
From _d___c_a_s_t_n_e_g_._U:
This variable contains a flag that precise difficulties the compiler
has casting odd floating values to unsigned long: 0 = ok 1 = couldn't
cast < 0 2 = couldn't cast >= 0x80000000 4 = couldn't cast in
argument expression list
"cat"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the cat program. After Configure runs, the
value is reset to a plain "cat" and is not useful.
"cc"
From _c_c_._U:
This variable holds the name of a command to execute a C compiler
which can resolve multiple global references that happen to have the
same name. Usual values are "cc" and "gcc". Fervent "ANSI"
compilers may be called "c89". "AIX" has xlc.
"cccdlflags"
From _d_l_s_r_c_._U:
This variable contains any special flags that might need to be passed
with "cc -c" to compile modules to be used to create a shared library
that will be used for dynamic loading. For hpux, this should be +z.
It is up to the makefile to use it.
"ccdlflags"
From _d_l_s_r_c_._U:
This variable contains any special flags that might need to be passed
to cc to link with a shared library for dynamic loading. It is up to
the makefile to use it. For sunos 4.1, it should be empty.
"ccflags"
From _c_c_f_l_a_g_s_._U:
This variable contains any additional C compiler flags desired by the
user. It is up to the Makefile to use this.
"ccflags_uselargefiles"
From _u_s_e_l_f_s_._U:
This variable contains the compiler flags needed by large file builds
and added to ccflags by hints files.
"ccname"
From _C_h_e_c_k_c_c_._U:
This can set either by hints files or by Configure. If using gcc,
this is gcc, and if not, usually equal to cc, unimpressive, no? Some
platforms, however, make good use of this by storing the flavor of
the C compiler being used here. For example if using the Sun
WorkShop suite, ccname will be "workshop".
"ccsymbols"
From _C_p_p_s_y_m_._U:
The variable contains the symbols defined by the C compiler alone.
The symbols defined by cpp or by cc when it calls cpp are not in this
list, see cppsymbols and cppccsymbols. The list is a space-separated
list of symbol=value tokens.
"ccversion"
From _C_h_e_c_k_c_c_._U:
This can set either by hints files or by Configure. If using a (non-
gcc) vendor cc, this variable may contain a version for the compiler.
"cf_by"
From _c_f___w_h_o_._U:
Login name of the person who ran the Configure script and answered
the questions. This is used to tag both _c_o_n_f_i_g_._s_h and _c_o_n_f_i_g___h_._S_H.
"cf_email"
From _c_f___e_m_a_i_l_._U:
Electronic mail address of the person who ran Configure. This can be
used by units that require the user's e-mail, like _M_a_i_l_L_i_s_t_._U.
"cf_time"
From _c_f___w_h_o_._U:
Holds the output of the "date" command when the configuration file
was produced. This is used to tag both _c_o_n_f_i_g_._s_h and _c_o_n_f_i_g___h_._S_H.
"charbits"
From _c_h_a_r_s_i_z_e_._U:
This variable contains the value of the "CHARBITS" symbol, which
indicates to the C program how many bits there are in a character.
"charsize"
From _c_h_a_r_s_i_z_e_._U:
This variable contains the value of the "CHARSIZE" symbol, which
indicates to the C program how many bytes there are in a character.
"chgrp"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"chmod"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the chmod program. After Configure runs, the
value is reset to a plain "chmod" and is not useful.
"chown"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"clocktype"
From _d___t_i_m_e_s_._U:
This variable holds the type returned by ttiimmeess(()). It can be long, or
clock_t on "BSD" sites (in which case <sys/types.h> should be
included).
"comm"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the comm program. After Configure runs, the
value is reset to a plain "comm" and is not useful.
"compiler_warning"
From _c_o_m_p_i_l_e_r___w_a_r_n_i_n_g_._U:
This variable holds the command to check if the file specified as a
parameter contains a compiler warning
"compress"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"config_arg0"
From _O_p_t_i_o_n_s_._U:
This variable contains the string used to invoke the Configure
command, as reported by the shell in the $0 variable.
"config_argc"
From _O_p_t_i_o_n_s_._U:
This variable contains the number of command-line arguments passed to
Configure, as reported by the shell in the $# variable. The
individual arguments are stored as variables config_arg1,
config_arg2, etc.
"config_args"
From _O_p_t_i_o_n_s_._U:
This variable contains a single string giving the command-line
arguments passed to Configure. Spaces within arguments, quotes, and
escaped characters are not correctly preserved. To reconstruct the
command line, you must assemble the individual command line pieces,
given in config_arg[0-9]*.
"contains"
From _c_o_n_t_a_i_n_s_._U:
This variable holds the command to do a grep with a proper return
status. On most sane systems it is simply "grep". On insane systems
it is a grep followed by a cat followed by a test. This variable is
primarily for the use of other Configure units.
"cp"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the cp program. After Configure runs, the value
is reset to a plain "cp" and is not useful.
"cpio"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"cpp"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the cpp program. After Configure runs, the
value is reset to a plain "cpp" and is not useful.
"cpp_stuff"
From _c_p_p___s_t_u_f_f_._U:
This variable contains an identification of the concatenation
mechanism used by the C preprocessor.
"cppccsymbols"
From _C_p_p_s_y_m_._U:
The variable contains the symbols defined by the C compiler when it
calls cpp. The symbols defined by the cc alone or cpp alone are not
in this list, see ccsymbols and cppsymbols. The list is a space-
separated list of symbol=value tokens.
"cppflags"
From _c_c_f_l_a_g_s_._U:
This variable holds the flags that will be passed to the C pre-
processor. It is up to the Makefile to use it.
"cpplast"
From _c_p_p_s_t_d_i_n_._U:
This variable has the same functionality as cppminus, only it applies
to cpprun and not cppstdin.
"cppminus"
From _c_p_p_s_t_d_i_n_._U:
This variable contains the second part of the string which will
invoke the C preprocessor on the standard input and produce to
standard output. This variable will have the value "-" if cppstdin
needs a minus to specify standard input, otherwise the value is "".
"cpprun"
From _c_p_p_s_t_d_i_n_._U:
This variable contains the command which will invoke a C preprocessor
on standard input and put the output to stdout. It is guaranteed not
to be a wrapper and may be a null string if no preprocessor can be
made directly available. This preprocessor might be different from
the one used by the C compiler. Don't forget to append cpplast after
the preprocessor options.
"cppstdin"
From _c_p_p_s_t_d_i_n_._U:
This variable contains the command which will invoke the C
preprocessor on standard input and put the output to stdout. It is
primarily used by other Configure units that ask about preprocessor
symbols.
"cppsymbols"
From _C_p_p_s_y_m_._U:
The variable contains the symbols defined by the C preprocessor
alone. The symbols defined by cc or by cc when it calls cpp are not
in this list, see ccsymbols and cppccsymbols. The list is a space-
separated list of symbol=value tokens.
"crypt_r_proto"
From _d___c_r_y_p_t___r_._U:
This variable encodes the prototype of crypt_r. It is zero if
d_crypt_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros of
_r_e_e_n_t_r_._h if d_crypt_r is defined.
"cryptlib"
From _d___c_r_y_p_t_._U:
This variable holds -lcrypt or the path to a _l_i_b_c_r_y_p_t_._a archive if
the ccrryypptt(()) function is not defined in the standard C library. It is
up to the Makefile to use this.
"csh"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the csh program. After Configure runs, the
value is reset to a plain "csh" and is not useful.
"ctermid_r_proto"
From _d___c_t_e_r_m_i_d___r_._U:
This variable encodes the prototype of ctermid_r. It is zero if
d_ctermid_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_ctermid_r is defined.
"ctime_r_proto"
From _d___c_t_i_m_e___r_._U:
This variable encodes the prototype of ctime_r. It is zero if
d_ctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros of
_r_e_e_n_t_r_._h if d_ctime_r is defined.
dd “d__fwalk” From _d_____f_w_a_l_k_._U:
This variable conditionally defines "HAS__FWALK" if __ffwwaallkk(()) is
available to apply a function to all the file handles.
"d_accept4"
From _d___a_c_c_e_p_t_4_._U:
This variable conditionally defines HAS_ACCEPT4 if aacccceepptt44(()) is
available to accept socket connections.
"d_access"
From _d___a_c_c_e_s_s_._U:
This variable conditionally defines "HAS_ACCESS" if the aacccceessss(())
system call is available to check for access permissions using real
IDs.
"d_accessx"
From _d___a_c_c_e_s_s_x_._U:
This variable conditionally defines the "HAS_ACCESSX" symbol, which
indicates to the C program that the aacccceessssxx(()) routine is available.
"d_acosh"
From _d___a_c_o_s_h_._U:
This variable conditionally defines the "HAS_ACOSH" symbol, which
indicates to the C program that the aaccoosshh(()) routine is available.
"d_aintl"
From _d___a_i_n_t_l_._U:
This variable conditionally defines the "HAS_AINTL" symbol, which
indicates to the C program that the aaiinnttll(()) routine is available. If
copysignl is also present we can emulate modfl.
"d_alarm"
From _d___a_l_a_r_m_._U:
This variable conditionally defines the "HAS_ALARM" symbol, which
indicates to the C program that the aallaarrmm(()) routine is available.
"d_archlib"
From _a_r_c_h_l_i_b_._U:
This variable conditionally defines "ARCHLIB" to hold the pathname of
architecture-dependent library files for $package. If $archlib is
the same as $privlib, then this is set to undef.
"d_asctime64"
From _d___t_i_m_e_f_u_n_c_s_6_4_._U:
This variable conditionally defines the HAS_ASCTIME64 symbol, which
indicates to the C program that the asctime64 () routine is
available.
"d_asctime_r"
From _d___a_s_c_t_i_m_e___r_._U:
This variable conditionally defines the "HAS_ASCTIME_R" symbol, which
indicates to the C program that the aassccttiimmee__rr(()) routine is available.
"d_asinh"
From _d___a_s_i_n_h_._U:
This variable conditionally defines the "HAS_ASINH" symbol, which
indicates to the C program that the aassiinnhh(()) routine is available.
"d_atanh"
From _d___a_t_a_n_h_._U:
This variable conditionally defines the "HAS_ATANH" symbol, which
indicates to the C program that the aattaannhh(()) routine is available.
"d_atolf"
From _a_t_o_l_f_._U:
This variable conditionally defines the "HAS_ATOLF" symbol, which
indicates to the C program that the aattoollff(()) routine is available.
"d_atoll"
From _a_t_o_l_l_._U:
This variable conditionally defines the "HAS_ATOLL" symbol, which
indicates to the C program that the aattoollll(()) routine is available.
"d_attribute_always_inline"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_ALWAYS_INLINE",
which indicates that the C compiler can know that certain functions
should always be inlined.
"d_attribute_deprecated"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_DEPRECATED", which
indicates that "GCC" can handle the attribute for marking deprecated
APIs
"d_attribute_format"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_FORMAT", which
indicates the C compiler can check for printf-like formats.
"d_attribute_malloc"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_MALLOC", which
indicates the C compiler can understand functions as having malloc-
like semantics.
"d_attribute_nonnull"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_NONNULL", which
indicates that the C compiler can know that certain arguments must
not be "NULL", and will check accordingly at compile time.
"d_attribute_noreturn"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_NORETURN", which
indicates that the C compiler can know that certain functions are
guaranteed never to return.
"d_attribute_pure"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_PURE", which
indicates that the C compiler can know that certain functions are
"pure" functions, meaning that they have no side effects, and only
rely on function input _a_n_d_/_o_r global data for their results.
"d_attribute_unused"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "HASATTRIBUTE_UNUSED", which
indicates that the C compiler can know that certain variables and
arguments may not always be used, and to not throw warnings if they
don't get used.
"d_attribute_warn_unused_result"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines
"HASATTRIBUTE_WARN_UNUSED_RESULT", which indicates that the C
compiler can know that certain functions have a return values that
must not be ignored, such as mmaalllloocc(()) or ooppeenn(()).
"d_backtrace"
From _d___b_a_c_k_t_r_a_c_e_._U:
This variable conditionally defines the "HAS_BACKTRACE" symbol, which
indicates to the C program that the bbaacckkttrraaccee(()) routine is available
to get a stack trace.
"d_bsd"
From _G_u_e_s_s_._U:
This symbol conditionally defines the symbol "BSD" when running on a
"BSD" system.
"d_bsdgetpgrp"
From _d___g_e_t_p_g_r_p_._U:
This variable conditionally defines "USE_BSD_GETPGRP" if getpgrp
needs one arguments whereas "USG" one needs none.
"d_bsdsetpgrp"
From _d___s_e_t_p_g_r_p_._U:
This variable conditionally defines "USE_BSD_SETPGRP" if setpgrp
needs two arguments whereas "USG" one needs none. See also d_setpgid
for a "POSIX" interface.
"d_builtin_add_overflow"
From _d___b_u_i_l_t_i_n___o_v_e_r_f_l_o_w_._U:
This variable conditionally defines "HAS_BUILTIN_ADD_OVERFLOW", which
indicates that the compiler supports __builtin_add_overflow(x,y,&z)
for safely adding x and y into z while checking for overflow.
"d_builtin_choose_expr"
From _d___b_u_i_l_t_i_n_._U:
This conditionally defines "HAS_BUILTIN_CHOOSE_EXPR", which indicates
that the compiler supports __builtin_choose_expr(x,y,z). This built-
in function is analogous to the "x?y:z" operator in C, except that
the expression returned has its type unaltered by promotion rules.
Also, the built-in function does not evaluate the expression that was
not chosen.
"d_builtin_expect"
From _d___b_u_i_l_t_i_n_._U:
This conditionally defines "HAS_BUILTIN_EXPECT", which indicates that
the compiler supports __builtin_expect(exp,c). You may use
__builtin_expect to provide the compiler with branch prediction
information.
"d_builtin_mul_overflow"
From _d___b_u_i_l_t_i_n___o_v_e_r_f_l_o_w_._U:
This variable conditionally defines "HAS_BUILTIN_MUL_OVERFLOW", which
indicates that the compiler supports __builtin_mul_overflow(x,y,&z)
for safely multiplying x and y into z while checking for overflow.
"d_builtin_sub_overflow"
From _d___b_u_i_l_t_i_n___o_v_e_r_f_l_o_w_._U:
This variable conditionally defines "HAS_BUILTIN_SUB_OVERFLOW", which
indicates that the compiler supports __builtin_sub_overflow(x,y,&z)
for safely subtracting y from x into z while checking for overflow.
"d_c99_variadic_macros"
From _d___c_9_9___v_a_r_i_a_d_i_c_._U:
This variable conditionally defines the HAS_C99_VARIADIC_MACROS
symbol, which indicates to the C program that C99 variadic macros are
available.
"d_casti32"
From _d___c_a_s_t_i_3_2_._U:
This variable conditionally defines CASTI32, which indicates whether
the C compiler can cast large floats to 32-bit ints.
"d_castneg"
From _d___c_a_s_t_n_e_g_._U:
This variable conditionally defines "CASTNEG", which indicates
whether the C compiler can cast negative float to unsigned.
"d_cbrt"
From _d___c_b_r_t_._U:
This variable conditionally defines the "HAS_CBRT" symbol, which
indicates to the C program that the ccbbrrtt(()) (cube root) function is
available.
"d_chown"
From _d___c_h_o_w_n_._U:
This variable conditionally defines the "HAS_CHOWN" symbol, which
indicates to the C program that the cchhoowwnn(()) routine is available.
"d_chroot"
From _d___c_h_r_o_o_t_._U:
This variable conditionally defines the "HAS_CHROOT" symbol, which
indicates to the C program that the cchhrroooott(()) routine is available.
"d_chsize"
From _d___c_h_s_i_z_e_._U:
This variable conditionally defines the "CHSIZE" symbol, which
indicates to the C program that the cchhssiizzee(()) routine is available to
truncate files. You might need a -lx to get this routine.
"d_class"
From _d___c_l_a_s_s_._U:
This variable conditionally defines the "HAS_CLASS" symbol, which
indicates to the C program that the ccllaassss(()) routine is available.
"d_clearenv"
From _d___c_l_e_a_r_e_n_v_._U:
This variable conditionally defines the "HAS_CLEARENV" symbol, which
indicates to the C program that the clearenv () routine is available.
"d_closedir"
From _d___c_l_o_s_e_d_i_r_._U:
This variable conditionally defines "HAS_CLOSEDIR" if cclloosseeddiirr(()) is
available.
"d_cmsghdr_s"
From _d___c_m_s_g_h_d_r___s_._U:
This variable conditionally defines the "HAS_STRUCT_CMSGHDR" symbol,
which indicates that the struct cmsghdr is supported.
"d_copysign"
From _d___c_o_p_y_s_i_g_n_._U:
This variable conditionally defines the "HAS_COPYSIGN" symbol, which
indicates to the C program that the ccooppyyssiiggnn(()) routine is available.
"d_copysignl"
From _d___c_o_p_y_s_i_g_n_l_._U:
This variable conditionally defines the "HAS_COPYSIGNL" symbol, which
indicates to the C program that the ccooppyyssiiggnnll(()) routine is available.
If aintl is also present we can emulate modfl.
"d_cplusplus"
From _d___c_p_l_u_s_p_l_u_s_._U:
This variable conditionally defines the "USE_CPLUSPLUS" symbol, which
indicates that a C++ compiler was used to compiled Perl and will be
used to compile extensions.
"d_crypt"
From _d___c_r_y_p_t_._U:
This variable conditionally defines the "CRYPT" symbol, which
indicates to the C program that the ccrryypptt(()) routine is available to
encrypt passwords and the like.
"d_crypt_r"
From _d___c_r_y_p_t___r_._U:
This variable conditionally defines the "HAS_CRYPT_R" symbol, which
indicates to the C program that the ccrryypptt__rr(()) routine is available.
"d_csh"
From _d___c_s_h_._U:
This variable conditionally defines the "CSH" symbol, which indicates
to the C program that the C-shell exists.
"d_ctermid"
From _d___c_t_e_r_m_i_d_._U:
This variable conditionally defines "CTERMID" if cctteerrmmiidd(()) is
available to generate filename for terminal.
"d_ctermid_r"
From _d___c_t_e_r_m_i_d___r_._U:
This variable conditionally defines the "HAS_CTERMID_R" symbol, which
indicates to the C program that the cctteerrmmiidd__rr(()) routine is available.
"d_ctime64"
From _d___t_i_m_e_f_u_n_c_s_6_4_._U:
This variable conditionally defines the HAS_CTIME64 symbol, which
indicates to the C program that the ctime64 () routine is available.
"d_ctime_r"
From _d___c_t_i_m_e___r_._U:
This variable conditionally defines the "HAS_CTIME_R" symbol, which
indicates to the C program that the ccttiimmee__rr(()) routine is available.
"d_cuserid"
From _d___c_u_s_e_r_i_d_._U:
This variable conditionally defines the "HAS_CUSERID" symbol, which
indicates to the C program that the ccuusseerriidd(()) routine is available to
get character login names.
"d_dbminitproto"
From _d___d_b_m_i_n_i_t_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_DBMINIT_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the ddbbmmiinniitt(()) function. Otherwise, it is up to the program to
supply one.
"d_difftime"
From _d___d_i_f_f_t_i_m_e_._U:
This variable conditionally defines the "HAS_DIFFTIME" symbol, which
indicates to the C program that the ddiiffffttiimmee(()) routine is available.
"d_difftime64"
From _d___t_i_m_e_f_u_n_c_s_6_4_._U:
This variable conditionally defines the HAS_DIFFTIME64 symbol, which
indicates to the C program that the difftime64 () routine is
available.
"d_dir_dd_fd"
From _d___d_i_r___d_d___f_d_._U:
This variable conditionally defines the "HAS_DIR_DD_FD" symbol, which
indicates that the "DIR" directory stream type contains a member
variable called dd_fd.
"d_dirfd"
From _d___d_i_r_f_d_._U:
This variable conditionally defines the "HAS_DIRFD" constant, which
indicates to the C program that ddiirrffdd(()) is available to return the
file descriptor of a directory stream.
"d_dirnamlen"
From _i___d_i_r_e_n_t_._U:
This variable conditionally defines "DIRNAMLEN", which indicates to
the C program that the length of directory entry names is provided by
a d_namelen field.
"d_dladdr"
From _d___d_l_a_d_d_r_._U:
This variable conditionally defines the "HAS_DLADDR" symbol, which
indicates to the C program that the ddllaaddddrr(()) routine is available to
get a stack trace.
"d_dlerror"
From _d___d_l_e_r_r_o_r_._U:
This variable conditionally defines the "HAS_DLERROR" symbol, which
indicates to the C program that the ddlleerrrroorr(()) routine is available.
"d_dlopen"
From _d___d_l_o_p_e_n_._U:
This variable conditionally defines the "HAS_DLOPEN" symbol, which
indicates to the C program that the ddllooppeenn(()) routine is available.
"d_dlsymun"
From _d___d_l_s_y_m_u_n_._U:
This variable conditionally defines "DLSYM_NEEDS_UNDERSCORE", which
indicates that we need to prepend an underscore to the symbol name
before calling ddllssyymm(()).
"d_dosuid"
From _d___d_o_s_u_i_d_._U:
This variable conditionally defines the symbol "DOSUID", which tells
the C program that it should insert setuid emulation code on hosts
which have setuid #! scripts disabled.
"d_double_has_inf"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol "DOUBLE_HAS_INF" which
indicates that the double type has an infinity.
"d_double_has_nan"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol "DOUBLE_HAS_NAN" which
indicates that the double type has a not-a-number.
"d_double_has_negative_zero"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol
"DOUBLE_HAS_NEGATIVE_ZERO" which indicates that the double type has a
negative zero.
"d_double_has_subnormals"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol
"DOUBLE_HAS_SUBNORMALS" which indicates that the double type has
subnormals (denormals).
"d_double_style_cray"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol "DOUBLE_STYLE_CRAY"
which indicates that the double is the 64-bit "CRAY" mainframe
format.
"d_double_style_ibm"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol "DOUBLE_STYLE_IBM",
which indicates that the double is the 64-bit "IBM" mainframe format.
"d_double_style_ieee"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol "DOUBLE_STYLE_IEEE",
which indicates that the double is the 64-bit "IEEE" 754.
"d_double_style_vax"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the symbol "DOUBLE_STYLE_VAX",
which indicates that the double is the 64-bit "VAX" format D or G.
"d_drand48_r"
From _d___d_r_a_n_d_4_8___r_._U:
This variable conditionally defines the HAS_DRAND48_R symbol, which
indicates to the C program that the ddrraanndd4488__rr(()) routine is available.
"d_drand48proto"
From _d___d_r_a_n_d_4_8_p_r_o_t_o_._U:
This variable conditionally defines the HAS_DRAND48_PROTO symbol,
which indicates to the C program that the system provides a prototype
for the ddrraanndd4488(()) function. Otherwise, it is up to the program to
supply one.
"d_dup2"
From _d___d_u_p_2_._U:
This variable conditionally defines HAS_DUP2 if dduupp22(()) is available
to duplicate file descriptors.
"d_dup3"
From _d___d_u_p_3_._U:
This variable conditionally defines HAS_DUP3 if dduupp33(()) is available
to duplicate file descriptors.
"d_duplocale"
From _d___n_e_w_l_o_c_a_l_e_._U:
This variable conditionally defines the "HAS_DUPLOCALE" symbol, which
indicates to the C program that the dduuppllooccaallee(()) routine is available
to duplicate a locale object.
"d_eaccess"
From _d___e_a_c_c_e_s_s_._U:
This variable conditionally defines the "HAS_EACCESS" symbol, which
indicates to the C program that the eeaacccceessss(()) routine is available.
"d_endgrent"
From _d___e_n_d_g_r_e_n_t_._U:
This variable conditionally defines the "HAS_ENDGRENT" symbol, which
indicates to the C program that the eennddggrreenntt(()) routine is available
for sequential access of the group database.
"d_endgrent_r"
From _d___e_n_d_g_r_e_n_t___r_._U:
This variable conditionally defines the "HAS_ENDGRENT_R" symbol,
which indicates to the C program that the eennddggrreenntt__rr(()) routine is
available.
"d_endhent"
From _d___e_n_d_h_e_n_t_._U:
This variable conditionally defines "HAS_ENDHOSTENT" if eennddhhoosstteenntt(())
is available to close whatever was being used for host queries.
"d_endhostent_r"
From _d___e_n_d_h_o_s_t_e_n_t___r_._U:
This variable conditionally defines the "HAS_ENDHOSTENT_R" symbol,
which indicates to the C program that the eennddhhoosstteenntt__rr(()) routine is
available.
"d_endnent"
From _d___e_n_d_n_e_n_t_._U:
This variable conditionally defines "HAS_ENDNETENT" if eennddnneetteenntt(()) is
available to close whatever was being used for network queries.
"d_endnetent_r"
From _d___e_n_d_n_e_t_e_n_t___r_._U:
This variable conditionally defines the "HAS_ENDNETENT_R" symbol,
which indicates to the C program that the eennddnneetteenntt__rr(()) routine is
available.
"d_endpent"
From _d___e_n_d_p_e_n_t_._U:
This variable conditionally defines "HAS_ENDPROTOENT" if
eennddpprroottooeenntt(()) is available to close whatever was being used for
protocol queries.
"d_endprotoent_r"
From _d___e_n_d_p_r_o_t_o_e_n_t___r_._U:
This variable conditionally defines the "HAS_ENDPROTOENT_R" symbol,
which indicates to the C program that the eennddpprroottooeenntt__rr(()) routine is
available.
"d_endpwent"
From _d___e_n_d_p_w_e_n_t_._U:
This variable conditionally defines the "HAS_ENDPWENT" symbol, which
indicates to the C program that the eennddppwweenntt(()) routine is available
for sequential access of the passwd database.
"d_endpwent_r"
From _d___e_n_d_p_w_e_n_t___r_._U:
This variable conditionally defines the "HAS_ENDPWENT_R" symbol,
which indicates to the C program that the eennddppwweenntt__rr(()) routine is
available.
"d_endsent"
From _d___e_n_d_s_e_n_t_._U:
This variable conditionally defines "HAS_ENDSERVENT" if eennddsseerrvveenntt(())
is available to close whatever was being used for service queries.
"d_endservent_r"
From _d___e_n_d_s_e_r_v_e_n_t___r_._U:
This variable conditionally defines the "HAS_ENDSERVENT_R" symbol,
which indicates to the C program that the eennddsseerrvveenntt__rr(()) routine is
available.
"d_eofnblk"
From _n_b_l_o_c_k___i_o_._U:
This variable conditionally defines "EOF_NONBLOCK" if "EOF" can be
seen when reading from a non-blocking I/O source.
"d_erf"
From _d___e_r_f_._U:
This variable conditionally defines the "HAS_ERF" symbol, which
indicates to the C program that the eerrff(()) routine is available.
"d_erfc"
From _d___e_r_f_c_._U:
This variable conditionally defines the "HAS_ERFC" symbol, which
indicates to the C program that the eerrffcc(()) routine is available.
"d_eunice"
From _G_u_e_s_s_._U:
This variable conditionally defines the symbols "EUNICE" and "VAX",
which alerts the C program that it must deal with idiosyncrasies of
“VMS”. #
"d_exp2"
From _d___e_x_p_2_._U:
This variable conditionally defines the HAS_EXP2 symbol, which
indicates to the C program that the eexxpp22(()) routine is available.
"d_expm1"
From _d___e_x_p_m_1_._U:
This variable conditionally defines the HAS_EXPM1 symbol, which
indicates to the C program that the eexxppmm11(()) routine is available.
"d_faststdio"
From _d___f_a_s_t_s_t_d_i_o_._U:
This variable conditionally defines the "HAS_FAST_STDIO" symbol,
which indicates to the C program that the "fast stdio" is available
to manipulate the stdio buffers directly.
"d_fchdir"
From _d___f_c_h_d_i_r_._U:
This variable conditionally defines the "HAS_FCHDIR" symbol, which
indicates to the C program that the ffcchhddiirr(()) routine is available.
"d_fchmod"
From _d___f_c_h_m_o_d_._U:
This variable conditionally defines the "HAS_FCHMOD" symbol, which
indicates to the C program that the ffcchhmmoodd(()) routine is available to
change mode of opened files.
"d_fchmodat"
From _d___f_s_a_t_._U:
This variable conditionally defines the "HAS_FCHMODAT" symbol, which
indicates the "POSIX" ffcchhmmooddaatt(()) function is available.
"d_fchown"
From _d___f_c_h_o_w_n_._U:
This variable conditionally defines the "HAS_FCHOWN" symbol, which
indicates to the C program that the ffcchhoowwnn(()) routine is available to
change ownership of opened files.
"d_fcntl"
From _d___f_c_n_t_l_._U:
This variable conditionally defines the "HAS_FCNTL" symbol, and
indicates whether the ffccnnttll(()) function exists
"d_fcntl_can_lock"
From _d___f_c_n_t_l___c_a_n___l_o_c_k_._U:
This variable conditionally defines the "FCNTL_CAN_LOCK" symbol and
indicates whether file locking with ffccnnttll(()) works.
"d_fd_macros"
From _d___f_d___s_e_t_._U:
This variable contains the eventual value of the "HAS_FD_MACROS"
symbol, which indicates if your C compiler knows about the macros
which manipulate an fd_set.
"d_fd_set"
From _d___f_d___s_e_t_._U:
This variable contains the eventual value of the "HAS_FD_SET" symbol,
which indicates if your C compiler knows about the fd_set typedef.
"d_fdclose"
From _d___f_d_c_l_o_s_e_._U:
This variable conditionally defines the "HAS_FDCLOSE" symbol, which
indicates to the C program that the ffddcclloossee(()) routine is available.
"d_fdim"
From _d___f_d_i_m_._U:
This variable conditionally defines the "HAS_FDIM" symbol, which
indicates to the C program that the ffddiimm(()) routine is available.
"d_fds_bits"
From _d___f_d___s_e_t_._U:
This variable contains the eventual value of the "HAS_FDS_BITS"
symbol, which indicates if your fd_set typedef contains the fds_bits
member. If you have an fd_set typedef, but the dweebs who installed
it did a half-fast job and neglected to provide the macros to
manipulate an fd_set, "HAS_FDS_BITS" will let us know how to fix the
gaffe.
"d_fegetround"
From _d___f_e_g_e_t_r_o_u_n_d_._U:
This variable conditionally defines "HAS_FEGETROUND" if ffeeggeettrroouunndd(())
is available to get the floating point rounding mode.
"d_ffs"
From _d___f_f_s_._U:
This variable conditionally defines the "HAS_FFS" symbol, which
indicates to the C program that the ffffss(()) routine is available to
find the first bit which is set in its integer argument.
"d_ffsl"
From _d___f_f_s_._U:
This variable conditionally defines the "HAS_FFSL" symbol, which
indicates to the C program that the ffffssll(()) routine is available to
find the first bit which is set in its long integer argument.
"d_fgetpos"
From _d___f_g_e_t_p_o_s_._U:
This variable conditionally defines "HAS_FGETPOS" if ffggeettppooss(()) is
available to get the file position indicator.
"d_finite"
From _d___f_i_n_i_t_e_._U:
This variable conditionally defines the "HAS_FINITE" symbol, which
indicates to the C program that the ffiinniittee(()) routine is available.
"d_finitel"
From _d___f_i_n_i_t_e_l_._U:
This variable conditionally defines the "HAS_FINITEL" symbol, which
indicates to the C program that the ffiinniitteell(()) routine is available.
"d_flexfnam"
From _d___f_l_e_x_f_n_a_m_._U:
This variable conditionally defines the "FLEXFILENAMES" symbol, which
indicates that the system supports filenames longer than 14
characters.
"d_flock"
From _d___f_l_o_c_k_._U:
This variable conditionally defines "HAS_FLOCK" if fflloocckk(()) is
available to do file locking.
"d_flockproto"
From _d___f_l_o_c_k_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_FLOCK_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the fflloocckk(()) function. Otherwise, it is up to the program to
supply one.
"d_fma"
From _d___f_m_a_._U:
This variable conditionally defines the "HAS_FMA" symbol, which
indicates to the C program that the ffmmaa(()) routine is available.
"d_fmax"
From _d___f_m_a_x_._U:
This variable conditionally defines the "HAS_FMAX" symbol, which
indicates to the C program that the ffmmaaxx(()) routine is available.
"d_fmin"
From _d___f_m_i_n_._U:
This variable conditionally defines the "HAS_FMIN" symbol, which
indicates to the C program that the ffmmiinn(()) routine is available.
"d_fork"
From _d___f_o_r_k_._U:
This variable conditionally defines the "HAS_FORK" symbol, which
indicates to the C program that the ffoorrkk(()) routine is available.
"d_fp_class"
From _d___f_p___c_l_a_s_s_._U:
This variable conditionally defines the "HAS_FP_CLASS" symbol, which
indicates to the C program that the ffpp__ccllaassss(()) routine is available.
"d_fp_classify"
From _d___f_p_c_l_a_s_s_i_f_y_._U:
This variable conditionally defines the "HAS_FP_CLASSIFY" symbol,
which indicates to the C program that the ffpp__ccllaassssiiffyy(()) routine is
available.
"d_fp_classl"
From _d___f_p___c_l_a_s_s_l_._U:
This variable conditionally defines the "HAS_FP_CLASSL" symbol, which
indicates to the C program that the ffpp__ccllaassssll(()) routine is available.
"d_fpathconf"
From _d___p_a_t_h_c_o_n_f_._U:
This variable conditionally defines the "HAS_FPATHCONF" symbol, which
indicates to the C program that the ppaatthhccoonnff(()) routine is available
to determine file-system related limits and options associated with a
given open file descriptor.
"d_fpclass"
From _d___f_p_c_l_a_s_s_._U:
This variable conditionally defines the "HAS_FPCLASS" symbol, which
indicates to the C program that the ffppccllaassss(()) routine is available.
"d_fpclassify"
From _d___f_p_c_l_a_s_s_i_f_y_._U:
This variable conditionally defines the "HAS_FPCLASSIFY" symbol,
which indicates to the C program that the ffppccllaassssiiffyy(()) routine is
available.
"d_fpclassl"
From _d___f_p_c_l_a_s_s_l_._U:
This variable conditionally defines the "HAS_FPCLASSL" symbol, which
indicates to the C program that the ffppccllaassssll(()) routine is available.
"d_fpgetround"
From _d___f_p_g_e_t_r_o_u_n_d_._U:
This variable conditionally defines "HAS_FPGETROUND" if ffppggeettrroouunndd(())
is available to get the floating point rounding mode.
"d_fpos64_t"
From _d___f_p_o_s_6_4___t_._U:
This symbol will be defined if the C compiler supports fpos64_t.
"d_freelocale"
From _d___n_e_w_l_o_c_a_l_e_._U:
This variable conditionally defines the "HAS_FREELOCALE" symbol,
which indicates to the C program that the ffrreeeellooccaallee(()) routine is
available to deallocates the resources associated with a locale
object.
"d_frexpl"
From _d___f_r_e_x_p_l_._U:
This variable conditionally defines the "HAS_FREXPL" symbol, which
indicates to the C program that the ffrreexxppll(()) routine is available.
"d_fs_data_s"
From _d___f_s___d_a_t_a___s_._U:
This variable conditionally defines the "HAS_STRUCT_FS_DATA" symbol,
which indicates that the struct fs_data is supported.
"d_fseeko"
From _d___f_s_e_e_k_o_._U:
This variable conditionally defines the "HAS_FSEEKO" symbol, which
indicates to the C program that the ffsseeeekkoo(()) routine is available.
"d_fsetpos"
From _d___f_s_e_t_p_o_s_._U:
This variable conditionally defines "HAS_FSETPOS" if ffsseettppooss(()) is
available to set the file position indicator.
"d_fstatfs"
From _d___f_s_t_a_t_f_s_._U:
This variable conditionally defines the "HAS_FSTATFS" symbol, which
indicates to the C program that the ffssttaattffss(()) routine is available.
"d_fstatvfs"
From _d___s_t_a_t_v_f_s_._U:
This variable conditionally defines the "HAS_FSTATVFS" symbol, which
indicates to the C program that the ffssttaattvvffss(()) routine is available.
"d_fsync"
From _d___f_s_y_n_c_._U:
This variable conditionally defines the "HAS_FSYNC" symbol, which
indicates to the C program that the ffssyynncc(()) routine is available.
"d_ftello"
From _d___f_t_e_l_l_o_._U:
This variable conditionally defines the "HAS_FTELLO" symbol, which
indicates to the C program that the fftteelllloo(()) routine is available.
"d_ftime"
From _d___f_t_i_m_e_._U:
This variable conditionally defines the "HAS_FTIME" symbol, which
indicates that the ffttiimmee(()) routine exists. The ffttiimmee(()) routine is
basically a sub-second accuracy clock.
"d_futimes"
From _d___f_u_t_i_m_e_s_._U:
This variable conditionally defines the "HAS_FUTIMES" symbol, which
indicates to the C program that the ffuuttiimmeess(()) routine is available.
"d_gai_strerror"
From _d___g_a_i___s_t_r_e_r_r_o_r_._U:
This variable conditionally defines the "HAS_GAI_STRERROR" symbol if
the ggaaii__ssttrreerrrroorr(()) routine is available and can be used to translate
error codes returned by ggeettaaddddrriinnffoo(()) into human readable strings.
"d_Gconvert"
From _d___g_c_o_n_v_e_r_t_._U:
This variable holds what Gconvert is defined as to convert floating
point numbers into strings. By default, Configure sets "this" macro
to use the first of gconvert, gcvt, or sprintf that pass
sprintf-%g-like behavior tests. If perl is using long doubles, the
macro uses the first of the following functions that pass Configure's
tests: qgcvt, sprintf (if Configure knows how to make sprintf format
long doubles--see sPRIgldbl), gconvert, gcvt, and sprintf (casting to
double). The gconvert_preference and gconvert_ld_preference
variables can be used to alter Configure's preferences, for doubles
and long doubles, respectively. If present, they contain a space-
separated list of one or more of the above function names in the
order they should be tried.
d_Gconvert may be set to override Configure with a platform- specific
function. If this function expects a double, a different value may
need to be set by the _u_s_e_l_o_n_g_d_o_u_b_l_e_._c_b_u call-back unit so that long
doubles can be formatted without loss of precision.
"d_gdbm_ndbm_h_uses_prototypes"
From _i___n_d_b_m_._U:
This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
symbol, which indicates that the gdbm-_n_d_b_m_._h include file uses real
"ANSI" C prototypes instead of K&R style function declarations. K&R
style declarations are unsupported in C++, so the include file
requires special handling when using a C++ compiler and this variable
is undefined. Consult the different d_*ndbm_h_uses_prototypes
variables to get the same information for alternative _n_d_b_m_._h include
files.
"d_gdbmndbm_h_uses_prototypes"
From _i___n_d_b_m_._U:
This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
symbol, which indicates that the _g_d_b_m_/_n_d_b_m_._h include file uses real
"ANSI" C prototypes instead of K&R style function declarations. K&R
style declarations are unsupported in C++, so the include file
requires special handling when using a C++ compiler and this variable
is undefined. Consult the different d_*ndbm_h_uses_prototypes
variables to get the same information for alternative _n_d_b_m_._h include
files.
"d_getaddrinfo"
From _d___g_e_t_a_d_d_r_i_n_f_o_._U:
This variable conditionally defines the "HAS_GETADDRINFO" symbol,
which indicates to the C program that the ggeettaaddddrriinnffoo(()) function is
available.
"d_getcwd"
From _d___g_e_t_c_w_d_._U:
This variable conditionally defines the "HAS_GETCWD" symbol, which
indicates to the C program that the ggeettccwwdd(()) routine is available to
get the current working directory.
"d_getenv_preserves_other_thread"
From _d___g_e_t_e_n_v___t_h_r_e_a_d_._U:
This variable conditionally defines the
"GETENV_PRESERVES_OTHER_THREAD" symbol, which indicates to the C
program that the ggeetteennvv(()) system call does not zap the static buffer
in a different thread.
"d_getespwnam"
From _d___g_e_t_e_s_p_w_n_a_m_._U:
This variable conditionally defines "HAS_GETESPWNAM" if ggeetteessppwwnnaamm(())
is available to retrieve enhanced (shadow) password entries by name.
"d_getfsstat"
From _d___g_e_t_f_s_s_t_a_t_._U:
This variable conditionally defines the "HAS_GETFSSTAT" symbol, which
indicates to the C program that the ggeettffssssttaatt(()) routine is available.
"d_getgrent"
From _d___g_e_t_g_r_e_n_t_._U:
This variable conditionally defines the "HAS_GETGRENT" symbol, which
indicates to the C program that the ggeettggrreenntt(()) routine is available
for sequential access of the group database.
"d_getgrent_r"
From _d___g_e_t_g_r_e_n_t___r_._U:
This variable conditionally defines the "HAS_GETGRENT_R" symbol,
which indicates to the C program that the ggeettggrreenntt__rr(()) routine is
available.
"d_getgrgid_r"
From _d___g_e_t_g_r_g_i_d___r_._U:
This variable conditionally defines the "HAS_GETGRGID_R" symbol,
which indicates to the C program that the ggeettggrrggiidd__rr(()) routine is
available.
"d_getgrnam_r"
From _d___g_e_t_g_r_n_a_m___r_._U:
This variable conditionally defines the "HAS_GETGRNAM_R" symbol,
which indicates to the C program that the ggeettggrrnnaamm__rr(()) routine is
available.
"d_getgrps"
From _d___g_e_t_g_r_p_s_._U:
This variable conditionally defines the "HAS_GETGROUPS" symbol, which
indicates to the C program that the ggeettggrroouuppss(()) routine is available
to get the list of process groups.
"d_gethbyaddr"
From _d___g_e_t_h_b_y_a_d_._U:
This variable conditionally defines the "HAS_GETHOSTBYADDR" symbol,
which indicates to the C program that the ggeetthhoossttbbyyaaddddrr(()) routine is
available to look up hosts by their "IP" addresses.
"d_gethbyname"
From _d___g_e_t_h_b_y_n_m_._U:
This variable conditionally defines the "HAS_GETHOSTBYNAME" symbol,
which indicates to the C program that the ggeetthhoossttbbyynnaammee(()) routine is
available to look up host names in some data base or other.
"d_gethent"
From _d___g_e_t_h_e_n_t_._U:
This variable conditionally defines "HAS_GETHOSTENT" if ggeetthhoosstteenntt(())
is available to look up host names in some data base or another.
"d_gethname"
From _d___g_e_t_h_n_a_m_e_._U:
This variable conditionally defines the "HAS_GETHOSTNAME" symbol,
which indicates to the C program that the ggeetthhoossttnnaammee(()) routine may
be used to derive the host name.
"d_gethostbyaddr_r"
From _d___g_e_t_h_o_s_t_b_y_a_d_d_r___r_._U:
This variable conditionally defines the "HAS_GETHOSTBYADDR_R" symbol,
which indicates to the C program that the ggeetthhoossttbbyyaaddddrr__rr(()) routine
is available.
"d_gethostbyname_r"
From _d___g_e_t_h_o_s_t_b_y_n_a_m_e___r_._U:
This variable conditionally defines the "HAS_GETHOSTBYNAME_R" symbol,
which indicates to the C program that the ggeetthhoossttbbyynnaammee__rr(()) routine
is available.
"d_gethostent_r"
From _d___g_e_t_h_o_s_t_e_n_t___r_._U:
This variable conditionally defines the "HAS_GETHOSTENT_R" symbol,
which indicates to the C program that the ggeetthhoosstteenntt__rr(()) routine is
available.
"d_gethostprotos"
From _d___g_e_t_h_o_s_t_p_r_o_t_o_s_._U:
This variable conditionally defines the "HAS_GETHOST_PROTOS" symbol,
which indicates to the C program that <netdb.h> supplies prototypes
for the various gethost*() functions. See also _n_e_t_d_b_t_y_p_e_._U for
probing for various netdb types.
"d_getitimer"
From _d___g_e_t_i_t_i_m_e_r_._U:
This variable conditionally defines the "HAS_GETITIMER" symbol, which
indicates to the C program that the ggeettiittiimmeerr(()) routine is available.
"d_getlogin"
From _d___g_e_t_l_o_g_i_n_._U:
This variable conditionally defines the "HAS_GETLOGIN" symbol, which
indicates to the C program that the ggeettllooggiinn(()) routine is available
to get the login name.
"d_getlogin_r"
From _d___g_e_t_l_o_g_i_n___r_._U:
This variable conditionally defines the "HAS_GETLOGIN_R" symbol,
which indicates to the C program that the ggeettllooggiinn__rr(()) routine is
available.
"d_getmnt"
From _d___g_e_t_m_n_t_._U:
This variable conditionally defines the "HAS_GETMNT" symbol, which
indicates to the C program that the ggeettmmnntt(()) routine is available to
retrieve one or more mount info blocks by filename.
"d_getmntent"
From _d___g_e_t_m_n_t_e_n_t_._U:
This variable conditionally defines the "HAS_GETMNTENT" symbol, which
indicates to the C program that the ggeettmmnntteenntt(()) routine is available
to iterate through mounted files to get their mount info.
"d_getnameinfo"
From _d___g_e_t_n_a_m_e_i_n_f_o_._U:
This variable conditionally defines the "HAS_GETNAMEINFO" symbol,
which indicates to the C program that the ggeettnnaammeeiinnffoo(()) function is
available.
"d_getnbyaddr"
From _d___g_e_t_n_b_y_a_d_._U:
This variable conditionally defines the "HAS_GETNETBYADDR" symbol,
which indicates to the C program that the ggeettnneettbbyyaaddddrr(()) routine is
available to look up networks by their "IP" addresses.
"d_getnbyname"
From _d___g_e_t_n_b_y_n_m_._U:
This variable conditionally defines the "HAS_GETNETBYNAME" symbol,
which indicates to the C program that the ggeettnneettbbyynnaammee(()) routine is
available to look up networks by their names.
"d_getnent"
From _d___g_e_t_n_e_n_t_._U:
This variable conditionally defines "HAS_GETNETENT" if ggeettnneetteenntt(()) is
available to look up network names in some data base or another.
"d_getnetbyaddr_r"
From _d___g_e_t_n_e_t_b_y_a_d_d_r___r_._U:
This variable conditionally defines the "HAS_GETNETBYADDR_R" symbol,
which indicates to the C program that the ggeettnneettbbyyaaddddrr__rr(()) routine is
available.
"d_getnetbyname_r"
From _d___g_e_t_n_e_t_b_y_n_a_m_e___r_._U:
This variable conditionally defines the "HAS_GETNETBYNAME_R" symbol,
which indicates to the C program that the ggeettnneettbbyynnaammee__rr(()) routine is
available.
"d_getnetent_r"
From _d___g_e_t_n_e_t_e_n_t___r_._U:
This variable conditionally defines the "HAS_GETNETENT_R" symbol,
which indicates to the C program that the ggeettnneetteenntt__rr(()) routine is
available.
"d_getnetprotos"
From _d___g_e_t_n_e_t_p_r_o_t_o_s_._U:
This variable conditionally defines the "HAS_GETNET_PROTOS" symbol,
which indicates to the C program that <netdb.h> supplies prototypes
for the various getnet*() functions. See also _n_e_t_d_b_t_y_p_e_._U for
probing for various netdb types.
"d_getpagsz"
From _d___g_e_t_p_a_g_s_z_._U:
This variable conditionally defines "HAS_GETPAGESIZE" if
ggeettppaaggeessiizzee(()) is available to get the system page size.
"d_getpbyname"
From _d___g_e_t_p_r_o_t_b_y_._U:
This variable conditionally defines the "HAS_GETPROTOBYNAME" symbol,
which indicates to the C program that the ggeettpprroottoobbyynnaammee(()) routine is
available to look up protocols by their name.
"d_getpbynumber"
From _d___g_e_t_p_r_o_t_b_y_._U:
This variable conditionally defines the "HAS_GETPROTOBYNUMBER"
symbol, which indicates to the C program that the ggeettpprroottoobbyynnuummbbeerr(())
routine is available to look up protocols by their number.
"d_getpent"
From _d___g_e_t_p_e_n_t_._U:
This variable conditionally defines "HAS_GETPROTOENT" if
ggeettpprroottooeenntt(()) is available to look up protocols in some data base or
another.
"d_getpgid"
From _d___g_e_t_p_g_i_d_._U:
This variable conditionally defines the "HAS_GETPGID" symbol, which
indicates to the C program that the getpgid(pid) function is
available to get the process group id.
"d_getpgrp"
From _d___g_e_t_p_g_r_p_._U:
This variable conditionally defines "HAS_GETPGRP" if ggeettppggrrpp(()) is
available to get the current process group.
"d_getpgrp2"
From _d___g_e_t_p_g_r_p_2_._U:
This variable conditionally defines the HAS_GETPGRP2 symbol, which
indicates to the C program that the ggeettppggrrpp22(()) (as in _D_G_/_"_U_X_")
routine is available to get the current process group.
"d_getppid"
From _d___g_e_t_p_p_i_d_._U:
This variable conditionally defines the "HAS_GETPPID" symbol, which
indicates to the C program that the ggeettppppiidd(()) routine is available to
get the parent process "ID".
"d_getprior"
From _d___g_e_t_p_r_i_o_r_._U:
This variable conditionally defines "HAS_GETPRIORITY" if
ggeettpprriioorriittyy(()) is available to get a process's priority.
"d_getprotobyname_r"
From _d___g_e_t_p_r_o_t_o_b_y_n_a_m_e___r_._U:
This variable conditionally defines the "HAS_GETPROTOBYNAME_R"
symbol, which indicates to the C program that the ggeettpprroottoobbyynnaammee__rr(())
routine is available.
"d_getprotobynumber_r"
From _d___g_e_t_p_r_o_t_o_b_y_n_u_m_b_e_r___r_._U:
This variable conditionally defines the "HAS_GETPROTOBYNUMBER_R"
symbol, which indicates to the C program that the
ggeettpprroottoobbyynnuummbbeerr__rr(()) routine is available.
"d_getprotoent_r"
From _d___g_e_t_p_r_o_t_o_e_n_t___r_._U:
This variable conditionally defines the "HAS_GETPROTOENT_R" symbol,
which indicates to the C program that the ggeettpprroottooeenntt__rr(()) routine is
available.
"d_getprotoprotos"
From _d___g_e_t_p_r_o_t_o_p_r_o_t_o_s_._U:
This variable conditionally defines the "HAS_GETPROTO_PROTOS" symbol,
which indicates to the C program that <netdb.h> supplies prototypes
for the various getproto*() functions. See also _n_e_t_d_b_t_y_p_e_._U for
probing for various netdb types.
"d_getprpwnam"
From _d___g_e_t_p_r_p_w_n_a_m_._U:
This variable conditionally defines "HAS_GETPRPWNAM" if ggeettpprrppwwnnaamm(())
is available to retrieve protected (shadow) password entries by name.
"d_getpwent"
From _d___g_e_t_p_w_e_n_t_._U:
This variable conditionally defines the "HAS_GETPWENT" symbol, which
indicates to the C program that the ggeettppwweenntt(()) routine is available
for sequential access of the passwd database.
"d_getpwent_r"
From _d___g_e_t_p_w_e_n_t___r_._U:
This variable conditionally defines the "HAS_GETPWENT_R" symbol,
which indicates to the C program that the ggeettppwweenntt__rr(()) routine is
available.
"d_getpwnam_r"
From _d___g_e_t_p_w_n_a_m___r_._U:
This variable conditionally defines the "HAS_GETPWNAM_R" symbol,
which indicates to the C program that the ggeettppwwnnaamm__rr(()) routine is
available.
"d_getpwuid_r"
From _d___g_e_t_p_w_u_i_d___r_._U:
This variable conditionally defines the "HAS_GETPWUID_R" symbol,
which indicates to the C program that the ggeettppwwuuiidd__rr(()) routine is
available.
"d_getsbyname"
From _d___g_e_t_s_r_v_b_y_._U:
This variable conditionally defines the "HAS_GETSERVBYNAME" symbol,
which indicates to the C program that the ggeettsseerrvvbbyynnaammee(()) routine is
available to look up services by their name.
"d_getsbyport"
From _d___g_e_t_s_r_v_b_y_._U:
This variable conditionally defines the "HAS_GETSERVBYPORT" symbol,
which indicates to the C program that the ggeettsseerrvvbbyyppoorrtt(()) routine is
available to look up services by their port.
"d_getsent"
From _d___g_e_t_s_e_n_t_._U:
This variable conditionally defines "HAS_GETSERVENT" if ggeettsseerrvveenntt(())
is available to look up network services in some data base or
another.
"d_getservbyname_r"
From _d___g_e_t_s_e_r_v_b_y_n_a_m_e___r_._U:
This variable conditionally defines the "HAS_GETSERVBYNAME_R" symbol,
which indicates to the C program that the ggeettsseerrvvbbyynnaammee__rr(()) routine
is available.
"d_getservbyport_r"
From _d___g_e_t_s_e_r_v_b_y_p_o_r_t___r_._U:
This variable conditionally defines the "HAS_GETSERVBYPORT_R" symbol,
which indicates to the C program that the ggeettsseerrvvbbyyppoorrtt__rr(()) routine
is available.
"d_getservent_r"
From _d___g_e_t_s_e_r_v_e_n_t___r_._U:
This variable conditionally defines the "HAS_GETSERVENT_R" symbol,
which indicates to the C program that the ggeettsseerrvveenntt__rr(()) routine is
available.
"d_getservprotos"
From _d___g_e_t_s_e_r_v_p_r_o_t_o_s_._U:
This variable conditionally defines the "HAS_GETSERV_PROTOS" symbol,
which indicates to the C program that <netdb.h> supplies prototypes
for the various getserv*() functions. See also _n_e_t_d_b_t_y_p_e_._U for
probing for various netdb types.
"d_getspnam"
From _d___g_e_t_s_p_n_a_m_._U:
This variable conditionally defines "HAS_GETSPNAM" if ggeettssppnnaamm(()) is
available to retrieve SysV shadow password entries by name.
"d_getspnam_r"
From _d___g_e_t_s_p_n_a_m___r_._U:
This variable conditionally defines the "HAS_GETSPNAM_R" symbol,
which indicates to the C program that the ggeettssppnnaamm__rr(()) routine is
available.
"d_gettimeod"
From _d___f_t_i_m_e_._U:
This variable conditionally defines the "HAS_GETTIMEOFDAY" symbol,
which indicates that the ggeettttiimmeeooffddaayy(()) system call exists (to obtain
a sub-second accuracy clock). You should probably include
<sys/resource.h>.
"d_gmtime64"
From _d___t_i_m_e_f_u_n_c_s_6_4_._U:
This variable conditionally defines the HAS_GMTIME64 symbol, which
indicates to the C program that the gmtime64 () routine is available.
"d_gmtime_r"
From _d___g_m_t_i_m_e___r_._U:
This variable conditionally defines the "HAS_GMTIME_R" symbol, which
indicates to the C program that the ggmmttiimmee__rr(()) routine is available.
"d_gnulibc"
From _d___g_n_u_l_i_b_c_._U:
Defined if we're dealing with the "GNU" C Library.
"d_grpasswd"
From _i___g_r_p_._U:
This variable conditionally defines "GRPASSWD", which indicates that
struct group in <grp.h> contains gr_passwd.
"d_has_C_UTF8"
From _d___s_e_t_l_o_c_a_l_e_._U:
This variable is set to either "true" or "false" depending on whether
the compilation system supports the _C_._U_T_F-8 locale.
"d_hasmntopt"
From _d___h_a_s_m_n_t_o_p_t_._U:
This variable conditionally defines the "HAS_HASMNTOPT" symbol, which
indicates to the C program that the hhaassmmnnttoopptt(()) routine is available
to query the mount options of file systems.
"d_htonl"
From _d___h_t_o_n_l_._U:
This variable conditionally defines "HAS_HTONL" if hhttoonnll(()) and its
friends are available to do network order byte swapping.
"d_hypot"
From _d___h_y_p_o_t_._U:
This variable conditionally defines "HAS_HYPOT" if hypot is available
for numerically stable hypotenuse function.
"d_ilogb"
From _d___i_l_o_g_b_._U:
This variable conditionally defines the "HAS_ILOGB" symbol, which
indicates to the C program that the iillooggbb(()) routine is available for
extracting the exponent of double x as a signed integer.
"d_ilogbl"
From _d___i_l_o_g_b_l_._U:
This variable conditionally defines the "HAS_ILOGBL" symbol, which
indicates to the C program that the iillooggbbll(()) routine is available for
extracting the exponent of long double x as a signed integer. If
scalbnl is also present we can emulate frexpl.
"d_inc_version_list"
From _i_n_c___v_e_r_s_i_o_n___l_i_s_t_._U:
This variable conditionally defines "PERL_INC_VERSION_LIST". It is
set to undef when "PERL_INC_VERSION_LIST" is empty.
"d_inetaton"
From _d___i_n_e_t_a_t_o_n_._U:
This variable conditionally defines the "HAS_INET_ATON" symbol, which
indicates to the C program that the iinneett__aattoonn(()) function is available
to parse "IP" address "dotted-quad" strings.
"d_inetntop"
From _d___i_n_e_t_n_t_o_p_._U:
This variable conditionally defines the "HAS_INETNTOP" symbol, which
indicates to the C program that the iinneett__nnttoopp(()) function is
available.
"d_inetpton"
From _d___i_n_e_t_p_t_o_n_._U:
This variable conditionally defines the "HAS_INETPTON" symbol, which
indicates to the C program that the iinneett__ppttoonn(()) function is
available.
"d_int64_t"
From _d___i_n_t_6_4___t_._U:
This symbol will be defined if the C compiler supports int64_t.
"d_ip_mreq"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_IP_MREQ" symbol, which
indicates the availability of a struct ip_mreq.
"d_ip_mreq_source"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_IP_MREQ_SOURCE" symbol,
which indicates the availability of a struct ip_mreq_source.
"d_ipv6_mreq"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the HAS_IPV6_MREQ symbol, which
indicates the availability of a struct ipv6_mreq.
"d_ipv6_mreq_source"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the HAS_IPV6_MREQ_SOURCE symbol,
which indicates the availability of a struct ipv6_mreq_source.
"d_isascii"
From _d___i_s_a_s_c_i_i_._U:
This variable conditionally defines the "HAS_ISASCII" constant, which
indicates to the C program that iissaasscciiii(()) is available.
"d_isblank"
From _d___i_s_b_l_a_n_k_._U:
This variable conditionally defines the "HAS_ISBLANK" constant, which
indicates to the C program that iissbbllaannkk(()) is available.
"d_isfinite"
From _d___i_s_f_i_n_i_t_e_._U:
This variable conditionally defines the "HAS_ISFINITE" symbol, which
indicates to the C program that the iissffiinniittee(()) routine is available.
"d_isfinitel"
From _d___i_s_f_i_n_i_t_e_l_._U:
This variable conditionally defines the "HAS_ISFINITEL" symbol, which
indicates to the C program that the iissffiinniitteell(()) routine is available.
"d_isinf"
From _d___i_s_i_n_f_._U:
This variable conditionally defines the "HAS_ISINF" symbol, which
indicates to the C program that the iissiinnff(()) routine is available.
"d_isinfl"
From _d___i_s_i_n_f_l_._U:
This variable conditionally defines the "HAS_ISINFL" symbol, which
indicates to the C program that the iissiinnffll(()) routine is available.
"d_isless"
From _d___i_s_l_e_s_s_._U:
This variable conditionally defines the "HAS_ISLESS" symbol, which
indicates to the C program that the iisslleessss(()) routine is available.
"d_isnan"
From _d___i_s_n_a_n_._U:
This variable conditionally defines the "HAS_ISNAN" symbol, which
indicates to the C program that the iissnnaann(()) routine is available.
"d_isnanl"
From _d___i_s_n_a_n_l_._U:
This variable conditionally defines the "HAS_ISNANL" symbol, which
indicates to the C program that the iissnnaannll(()) routine is available.
"d_isnormal"
From _d___i_s_n_o_r_m_a_l_._U:
This variable conditionally defines the "HAS_ISNORMAL" symbol, which
indicates to the C program that the iissnnoorrmmaall(()) routine is available.
"d_j0"
From _d___j_0_._U:
This variable conditionally defines the HAS_J0 symbol, which
indicates to the C program that the jj00(()) routine is available.
"d_j0l"
From _d___j_0_._U:
This variable conditionally defines the HAS_J0L symbol, which
indicates to the C program that the jj00ll(()) routine is available.
"d_killpg"
From _d___k_i_l_l_p_g_._U:
This variable conditionally defines the "HAS_KILLPG" symbol, which
indicates to the C program that the kkiillllppgg(()) routine is available to
kill process groups.
"d_lc_monetary_2008"
From _d___l_c___m_o_n_e_t_a_r_y___2_0_0_8_._U:
This variable conditionally defines HAS_LC_MONETARY_2008 if libc has
the international currency locale rules from "POSIX" 1003.1-2008.
"d_lchown"
From _d___l_c_h_o_w_n_._U:
This variable conditionally defines the "HAS_LCHOWN" symbol, which
indicates to the C program that the llcchhoowwnn(()) routine is available to
operate on a symbolic link (instead of following the link).
"d_ldbl_dig"
From _d___l_d_b_l___d_i_g_._U:
This variable conditionally defines d_ldbl_dig if this system's
header files provide "LDBL_DIG", which is the number of significant
digits in a long double precision number.
"d_ldexpl"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines the "HAS_LDEXPL" symbol, which
indicates to the C program that the llddeexxppll(()) routine is available.
"d_lgamma"
From _d___l_g_a_m_m_a_._U:
This variable conditionally defines the "HAS_LGAMMA" symbol, which
indicates to the C program that the llggaammmmaa(()) routine is available for
the log gamma function. See also d_tgamma and d_lgamma_r.
"d_lgamma_r"
From _d___l_g_a_m_m_a___r_._U:
This variable conditionally defines the "HAS_LGAMMA_R" symbol, which
indicates to the C program that the llggaammmmaa__rr(()) routine is available
for the log gamma function, without using the global signgam
variable.
"d_libm_lib_version"
From _d___l_i_b_m___l_i_b___v_e_r_s_i_o_n_._U:
This variable conditionally defines the "LIBM_LIB_VERSION" symbol,
which indicates to the C program that _m_a_t_h_._h defines "_LIB_VERSION"
being available in libm
"d_libname_unique"
From _s_o_._U:
This variable is defined if the target system insists on unique
basenames for shared library files. This is currently true on
Android, false everywhere else we know of. Defaults to "undef".
"d_link"
From _d___l_i_n_k_._U:
This variable conditionally defines "HAS_LINK" if lliinnkk(()) is available
to create hard links.
"d_linkat"
From _d___f_s_a_t_._U:
This variable conditionally defines the "HAS_LINKAT" symbol, which
indicates the "POSIX" lliinnkkaatt(()) function is available.
"d_llrint"
From _d___l_l_r_i_n_t_._U:
This variable conditionally defines the "HAS_LLRINT" symbol, which
indicates to the C program that the llllrriinntt(()) routine is available to
return the long long value closest to a double (according to the
current rounding mode).
"d_llrintl"
From _d___l_l_r_i_n_t_l_._U:
This variable conditionally defines the "HAS_LLRINTL" symbol, which
indicates to the C program that the llllrriinnttll(()) routine is available to
return the long long value closest to a long double (according to the
current rounding mode).
"d_llround"
From _d___l_l_r_o_u_n_d_._U:
This variable conditionally defines the "HAS_LLROUND" symbol, which
indicates to the C program that the llllrroouunndd(()) routine is available to
return the long long value nearest to x.
"d_llroundl"
From _d___l_l_r_o_u_n_d_l_._U:
This variable conditionally defines the "HAS_LLROUNDL" symbol, which
indicates to the C program that the llllrroouunnddll(()) routine is available
to return the long long value nearest to x away from zero.
"d_localeconv_l"
From _d___l_o_c_a_l_e_c_o_n_v___l_._U:
This variable conditionally defines the "HAS_LOCALECONV_L" symbol,
which indicates to the C program that the llooccaalleeccoonnvv__ll(()) routine is
available.
"d_localtime64"
From _d___t_i_m_e_f_u_n_c_s_6_4_._U:
This variable conditionally defines the HAS_LOCALTIME64 symbol, which
indicates to the C program that the localtime64 () routine is
available.
"d_localtime_r"
From _d___l_o_c_a_l_t_i_m_e___r_._U:
This variable conditionally defines the "HAS_LOCALTIME_R" symbol,
which indicates to the C program that the llooccaallttiimmee__rr(()) routine is
available.
"d_localtime_r_needs_tzset"
From _d___l_o_c_a_l_t_i_m_e___r_._U:
This variable conditionally defines the "LOCALTIME_R_NEEDS_TZSET"
symbol, which makes us call tzset before llooccaallttiimmee__rr(())
"d_locconv"
From _d___l_o_c_c_o_n_v_._U:
This variable conditionally defines "HAS_LOCALECONV" if llooccaalleeccoonnvv(())
is available for numeric and monetary formatting conventions.
"d_lockf"
From _d___l_o_c_k_f_._U:
This variable conditionally defines "HAS_LOCKF" if lloocckkff(()) is
available to do file locking.
"d_log1p"
From _d___l_o_g_1_p_._U:
This variable conditionally defines the HAS_LOG1P symbol, which
indicates to the C program that the llooggpp11(()) routine is available to
compute log(1 + x) for values of x close to zero.
"d_log2"
From _d___l_o_g_2_._U:
This variable conditionally defines the HAS_LOG2 symbol, which
indicates to the C program that the lloogg22(()) routine is available to
compute log base two.
"d_logb"
From _d___l_o_g_b_._U:
This variable conditionally defines the "HAS_LOGB" symbol, which
indicates to the C program that the llooggbb(()) routine is available to
extract the exponent of x.
"d_long_double_style_ieee"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE" if the
long double is any of the "IEEE" 754 style long doubles:
“LONG_DOUBLE_STYLE_IEEE_STD”, “LONG_DOUBLE_STYLE_IEEE_EXTENDED”, #
“LONG_DOUBLE_STYLE_IEEE_DOUBLEDOUBLE”. #
"d_long_double_style_ieee_doubledouble"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines
"LONG_DOUBLE_STYLE_IEEE_DOUBLEDOUBLE" if the long double is the
128-bit "IEEE" 754 double-double.
"d_long_double_style_ieee_extended"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE_EXTENDED"
if the long double is the 80-bit "IEEE" 754 extended precision. Note
that despite the "extended" this is less than the "std", since this
is an extension of the double precision.
"d_long_double_style_ieee_std"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE_STD" if
the long double is the 128-bit "IEEE" 754.
"d_long_double_style_vax"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines "LONG_DOUBLE_STYLE_VAX" if the
long double is the 128-bit "VAX" format H.
"d_longdbl"
From _d___l_o_n_g_d_b_l_._U:
This variable conditionally defines "HAS_LONG_DOUBLE" if the long
double type is supported.
"d_longlong"
From _d___l_o_n_g_l_o_n_g_._U:
This variable conditionally defines "HAS_LONG_LONG" if the long long
type is supported.
"d_lrint"
From _d___l_r_i_n_t_._U:
This variable conditionally defines the "HAS_LRINT" symbol, which
indicates to the C program that the llrriinntt(()) routine is available to
return the integral value closest to a double (according to the
current rounding mode).
"d_lrintl"
From _d___l_r_i_n_t_l_._U:
This variable conditionally defines the "HAS_LRINTL" symbol, which
indicates to the C program that the llrriinnttll(()) routine is available to
return the integral value closest to a long double (according to the
current rounding mode).
"d_lround"
From _d___l_r_o_u_n_d_._U:
This variable conditionally defines the "HAS_LROUND" symbol, which
indicates to the C program that the llrroouunndd(()) routine is available to
return the integral value nearest to x.
"d_lroundl"
From _d___l_r_o_u_n_d_l_._U:
This variable conditionally defines the "HAS_LROUNDL" symbol, which
indicates to the C program that the llrroouunnddll(()) routine is available to
return the integral value nearest to x away from zero.
"d_lseekproto"
From _d___l_s_e_e_k_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_LSEEK_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the llsseeeekk(()) function. Otherwise, it is up to the program to
supply one.
"d_lstat"
From _d___l_s_t_a_t_._U:
This variable conditionally defines "HAS_LSTAT" if llssttaatt(()) is
available to do file stats on symbolic links.
"d_madvise"
From _d___m_a_d_v_i_s_e_._U:
This variable conditionally defines "HAS_MADVISE" if mmaaddvviissee(()) is
available to map a file into memory.
"d_malloc_good_size"
From _d___m_a_l_l_o_c___s_i_z_e_._U:
This symbol, if defined, indicates that the malloc_good_size routine
is available for use.
"d_malloc_size"
From _d___m_a_l_l_o_c___s_i_z_e_._U:
This symbol, if defined, indicates that the malloc_size routine is
available for use.
"d_malloc_usable_size"
From _d___m_a_l_l_o_c___s_i_z_e_._U:
This symbol, if defined, indicates that the malloc_usable_size
routine is available for use.
"d_mblen"
From _d___m_b_l_e_n_._U:
This variable conditionally defines the "HAS_MBLEN" symbol, which
indicates to the C program that the mmbblleenn(()) routine is available to
find the number of bytes in a multibyte character.
"d_mbrlen"
From _d___m_b_r_l_e_n_._U:
This variable conditionally defines the "HAS_MBRLEN" symbol if the
mmbbrrlleenn(()) routine is available to be used to get the length of multi-
byte character strings.
"d_mbrtowc"
From _d___m_b_r_t_o_w_c_._U:
This variable conditionally defines the "HAS_MBRTOWC" symbol if the
mmbbrrttoowwcc(()) routine is available to be used to convert a multi-byte
character into a wide character.
"d_mbstowcs"
From _d___m_b_s_t_o_w_c_s_._U:
This variable conditionally defines the "HAS_MBSTOWCS" symbol, which
indicates to the C program that the mmbbssttoowwccss(()) routine is available
to convert a multibyte string into a wide character string.
"d_mbtowc"
From _d___m_b_t_o_w_c_._U:
This variable conditionally defines the "HAS_MBTOWC" symbol, which
indicates to the C program that the mmbbttoowwcc(()) routine is available to
convert multibyte to a wide character.
"d_memmem"
From _d___m_e_m_m_e_m_._U:
This variable conditionally defines the "HAS_MEMMEM" symbol, which
indicates to the C program that the mmeemmmmeemm(()) routine is available to
return a pointer to the start of the first occurrence of a substring
in a memory area (or "NULL" if not found).
"d_memrchr"
From _d___m_e_m_r_c_h_r_._U:
This variable conditionally defines the "HAS_MEMRCHR" symbol, which
indicates to the C program that the mmeemmrrcchhrr(()) routine is available to
return a pointer to the last occurrence of a byte in a memory area
(or "NULL" if not found).
"d_mkdir"
From _d___m_k_d_i_r_._U:
This variable conditionally defines the "HAS_MKDIR" symbol, which
indicates to the C program that the mmkkddiirr(()) routine is available to
create _d_i_r_e_c_t_o_r_i_e_s_..
"d_mkdtemp"
From _d___m_k_d_t_e_m_p_._U:
This variable conditionally defines the "HAS_MKDTEMP" symbol, which
indicates to the C program that the mmkkddtteemmpp(()) routine is available to
exclusively create a uniquely named temporary directory.
"d_mkfifo"
From _d___m_k_f_i_f_o_._U:
This variable conditionally defines the "HAS_MKFIFO" symbol, which
indicates to the C program that the mmkkffiiffoo(()) routine is available.
"d_mkostemp"
From _d___m_k_o_s_t_e_m_p_._U:
This variable conditionally defines "HAS_MKOSTEMP" if mmkkoosstteemmpp(()) is
available to exclusively create and open a uniquely named (with a
suffix) temporary file.
"d_mkstemp"
From _d___m_k_s_t_e_m_p_._U:
This variable conditionally defines the "HAS_MKSTEMP" symbol, which
indicates to the C program that the mmkksstteemmpp(()) routine is available to
exclusively create and open a uniquely named temporary file.
"d_mkstemps"
From _d___m_k_s_t_e_m_p_s_._U:
This variable conditionally defines the "HAS_MKSTEMPS" symbol, which
indicates to the C program that the mmkksstteemmppss(()) routine is available
to exclusively create and open a uniquely named (with a suffix)
temporary file.
"d_mktime"
From _d___m_k_t_i_m_e_._U:
This variable conditionally defines the "HAS_MKTIME" symbol, which
indicates to the C program that the mmkkttiimmee(()) routine is available.
"d_mktime64"
From _d___t_i_m_e_f_u_n_c_s_6_4_._U:
This variable conditionally defines the HAS_MKTIME64 symbol, which
indicates to the C program that the mktime64 () routine is available.
"d_mmap"
From _d___m_m_a_p_._U:
This variable conditionally defines "HAS_MMAP" if mmmmaapp(()) is available
to map a file into memory.
"d_modfl"
From _d___m_o_d_f_l_._U:
This variable conditionally defines the "HAS_MODFL" symbol, which
indicates to the C program that the mmooddffll(()) routine is available.
"d_modflproto"
From _d___m_o_d_f_l_._U:
This symbol, if defined, indicates that the system provides a
prototype for the mmooddffll(()) function. Otherwise, it is up to the
program to supply one. C99 says it should be long double modfl(long
double, long double *);
"d_mprotect"
From _d___m_p_r_o_t_e_c_t_._U:
This variable conditionally defines "HAS_MPROTECT" if mmpprrootteecctt(()) is
available to modify the access protection of a memory mapped file.
"d_msg"
From _d___m_s_g_._U:
This variable conditionally defines the "HAS_MSG" symbol, which
indicates that the entire msg*(2) library is present.
"d_msg_ctrunc"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_MSG_CTRUNC" symbol,
which indicates that the "MSG_CTRUNC" is available. #ifdef is not
enough because it may be an enum, glibc has been known to do this.
"d_msg_dontroute"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_MSG_DONTROUTE" symbol,
which indicates that the "MSG_DONTROUTE" is available. #ifdef is not
enough because it may be an enum, glibc has been known to do this.
"d_msg_oob"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_MSG_OOB" symbol, which
indicates that the "MSG_OOB" is available. #ifdef is not enough
because it may be an enum, glibc has been known to do this.
"d_msg_peek"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_MSG_PEEK" symbol, which
indicates that the "MSG_PEEK" is available. #ifdef is not enough
because it may be an enum, glibc has been known to do this.
"d_msg_proxy"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_MSG_PROXY" symbol, which
indicates that the "MSG_PROXY" is available. #ifdef is not enough
because it may be an enum, glibc has been known to do this.
"d_msgctl"
From _d___m_s_g_c_t_l_._U:
This variable conditionally defines the "HAS_MSGCTL" symbol, which
indicates to the C program that the mmssggccttll(()) routine is available.
"d_msgget"
From _d___m_s_g_g_e_t_._U:
This variable conditionally defines the "HAS_MSGGET" symbol, which
indicates to the C program that the mmssggggeett(()) routine is available.
"d_msghdr_s"
From _d___m_s_g_h_d_r___s_._U:
This variable conditionally defines the "HAS_STRUCT_MSGHDR" symbol,
which indicates that the struct msghdr is supported.
"d_msgrcv"
From _d___m_s_g_r_c_v_._U:
This variable conditionally defines the "HAS_MSGRCV" symbol, which
indicates to the C program that the mmssggrrccvv(()) routine is available.
"d_msgsnd"
From _d___m_s_g_s_n_d_._U:
This variable conditionally defines the "HAS_MSGSND" symbol, which
indicates to the C program that the mmssggssnndd(()) routine is available.
"d_msync"
From _d___m_s_y_n_c_._U:
This variable conditionally defines "HAS_MSYNC" if mmssyynncc(()) is
available to synchronize a mapped file.
"d_munmap"
From _d___m_u_n_m_a_p_._U:
This variable conditionally defines "HAS_MUNMAP" if mmuunnmmaapp(()) is
available to unmap a region mapped by mmmmaapp(()).
"d_mymalloc"
From _m_a_l_l_o_c_s_r_c_._U:
This variable conditionally defines "MYMALLOC" in case other parts of
the source want to take special action if "MYMALLOC" is used. This
may include different sorts of profiling or error detection.
"d_nan"
From _d___n_a_n_._U:
This variable conditionally defines "HAS_NAN" if nnaann(()) is available
to generate NaN.
"d_nanosleep"
From _d___n_a_n_o_s_l_e_e_p_._U:
This variable conditionally defines "HAS_NANOSLEEP" if nnaannoosslleeeepp(()) is
available to sleep with 1E-9 sec accuracy.
"d_ndbm"
From _i___n_d_b_m_._U:
This variable conditionally defines the "HAS_NDBM" symbol, which
indicates that both the _n_d_b_m_._h include file and an appropriate ndbm
library exist. Consult the different i_*ndbm variables to find out
the actual include location. Sometimes, a system has the header file
but not the library. This variable will only be set if the system
has both.
"d_ndbm_h_uses_prototypes"
From _i___n_d_b_m_._U:
This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
symbol, which indicates that the _n_d_b_m_._h include file uses real "ANSI"
C prototypes instead of K&R style function declarations. K&R style
declarations are unsupported in C++, so the include file requires
special handling when using a C++ compiler and this variable is
undefined. Consult the different d_*ndbm_h_uses_prototypes variables
to get the same information for alternative _n_d_b_m_._h include files.
"d_nearbyint"
From _d___n_e_a_r_b_y_i_n_t_._U:
This variable conditionally defines "HAS_NEARBYINT" if nneeaarrbbyyiinntt(()) is
available to return the integral value closest to (according to the
current rounding mode) to x.
"d_newlocale"
From _d___n_e_w_l_o_c_a_l_e_._U:
This variable conditionally defines the "HAS_NEWLOCALE" symbol, which
indicates to the C program that the nneewwllooccaallee(()) routine is available
to return a new locale object or modify an existing locale object.
"d_nextafter"
From _d___n_e_x_t_a_f_t_e_r_._U:
This variable conditionally defines "HAS_NEXTAFTER" if nneexxttaafftteerr(()) is
available to return the next machine representable double from x in
direction y.
"d_nexttoward"
From _d___n_e_x_t_t_o_w_a_r_d_._U:
This variable conditionally defines "HAS_NEXTTOWARD" if nneexxttttoowwaarrdd(())
is available to return the next machine representable long double
from x in direction y.
"d_nice"
From _d___n_i_c_e_._U:
This variable conditionally defines the "HAS_NICE" symbol, which
indicates to the C program that the nniiccee(()) routine is available.
"d_nl_langinfo"
From _d___n_l___l_a_n_g_i_n_f_o_._U:
This variable conditionally defines the "HAS_NL_LANGINFO" symbol,
which indicates to the C program that the nnll__llaannggiinnffoo(()) routine is
available.
"d_nl_langinfo_l"
From _d___n_l___l_a_n_g_i_n_f_o___l_._U:
This variable contains the eventual value of the "HAS_NL_LANGINFO_L"
symbol, which indicates if the nnll__llaannggiinnffoo__ll(()) function exists.
"d_non_int_bitfields"
From _d___b_i_t_f_i_e_l_d_._U:
This variable conditionally defines "HAS_NON_INT_BITFIELDS" which
indicates that the C compiler accepts struct bitfields of sizes that
aren't "int" or "unsigned int"
"d_nv_preserves_uv"
From _p_e_r_l_x_v_._U:
This variable indicates whether a variable of type nvtype can
preserve all the bits a variable of type uvtype.
"d_nv_zero_is_allbits_zero"
From _p_e_r_l_x_v_._U:
This variable indicates whether a variable of type nvtype stores 0.0
in memory as all bits zero.
"d_off64_t"
From _d___o_f_f_6_4___t_._U:
This symbol will be defined if the C compiler supports off64_t.
"d_old_pthread_create_joinable"
From _d___p_t_h_r_a_t_t_r_j_._U:
This variable conditionally defines pthread_create_joinable. undef
if _p_t_h_r_e_a_d_._h defines "PTHREAD_CREATE_JOINABLE".
"d_oldpthreads"
From _u_s_e_t_h_r_e_a_d_s_._U:
This variable conditionally defines the "OLD_PTHREADS_API" symbol,
and indicates that Perl should be built to use the old draft "POSIX"
threads "API". This is only potentially meaningful if usethreads is
set.
"d_oldsock"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "OLDSOCKET" symbol, which
indicates that the "BSD" socket interface is based on 4.1c and not
4.2.
"d_open3"
From _d___o_p_e_n_3_._U:
This variable conditionally defines the HAS_OPEN3 manifest constant,
which indicates to the C program that the 3 argument version of the
ooppeenn(2) function is available.
"d_openat"
From _d___f_s_a_t_._U:
This variable conditionally defines the "HAS_OPENAT" symbol, which
indicates the "POSIX" ooppeennaatt(()) function is available.
"d_pathconf"
From _d___p_a_t_h_c_o_n_f_._U:
This variable conditionally defines the "HAS_PATHCONF" symbol, which
indicates to the C program that the ppaatthhccoonnff(()) routine is available
to determine file-system related limits and options associated with a
given filename.
"d_pause"
From _d___p_a_u_s_e_._U:
This variable conditionally defines the "HAS_PAUSE" symbol, which
indicates to the C program that the ppaauussee(()) routine is available to
suspend a process until a signal is received.
"d_perl_otherlibdirs"
From _o_t_h_e_r_l_i_b_d_i_r_s_._U:
This variable conditionally defines "PERL_OTHERLIBDIRS", which
contains a colon-separated set of paths for the perl binary to
include in @"INC". See also otherlibdirs.
"d_phostname"
From _d___g_e_t_h_n_a_m_e_._U:
This variable conditionally defines the "HAS_PHOSTNAME" symbol, which
contains the shell command which, when fed to ppooppeenn(()), may be used to
derive the host name.
"d_pipe"
From _d___p_i_p_e_._U:
This variable conditionally defines the "HAS_PIPE" symbol, which
indicates to the C program that the ppiippee(()) routine is available to
create an inter-process channel.
"d_pipe2"
From _d___p_i_p_e_2_._U:
This variable conditionally defines the HAS_PIPE2 symbol, which
indicates to the C program that the ppiippee22(()) routine is available to
create an inter-process channel.
"d_poll"
From _d___p_o_l_l_._U:
This variable conditionally defines the "HAS_POLL" symbol, which
indicates to the C program that the ppoollll(()) routine is available to
poll active file descriptors.
"d_portable"
From _d___p_o_r_t_a_b_l_e_._U:
This variable conditionally defines the "PORTABLE" symbol, which
indicates to the C program that it should not assume that it is
running on the machine it was compiled on.
"d_prctl"
From _d___p_r_c_t_l_._U:
This variable conditionally defines the "HAS_PRCTL" symbol, which
indicates to the C program that the pprrccttll(()) routine is available.
Note that there are at least two prctl variants: Linux and Irix.
While they are somewhat similar, they are incompatible.
"d_prctl_set_name"
From _d___p_r_c_t_l_._U:
This variable conditionally defines the "HAS_PRCTL_SET_NAME" symbol,
which indicates to the C program that the pprrccttll(()) routine supports
the "PR_SET_NAME" option.
"d_PRId64"
From _q_u_a_d_f_i_o_._U:
This variable conditionally defines the PERL_PRId64 symbol, which
indicates that stdio has a symbol to print 64-bit decimal numbers.
"d_PRIeldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to print long doubles.
"d_PRIEUldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to print long doubles. The "U" in
the name is to separate this from d_PRIeldbl so that even case-blind
systems can see the difference.
"d_PRIfldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to print long doubles.
"d_PRIFUldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to print long doubles. The "U" in
the name is to separate this from d_PRIfldbl so that even case-blind
systems can see the difference.
"d_PRIgldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to print long doubles.
"d_PRIGUldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to print long doubles. The "U" in
the name is to separate this from d_PRIgldbl so that even case-blind
systems can see the difference.
"d_PRIi64"
From _q_u_a_d_f_i_o_._U:
This variable conditionally defines the PERL_PRIi64 symbol, which
indicates that stdio has a symbol to print 64-bit decimal numbers.
"d_printf_format_null"
From _d___a_t_t_r_i_b_u_t_._U:
This variable conditionally defines "PRINTF_FORMAT_NULL_OK", which
indicates the C compiler allows printf-like formats to be null.
"d_PRIo64"
From _q_u_a_d_f_i_o_._U:
This variable conditionally defines the PERL_PRIo64 symbol, which
indicates that stdio has a symbol to print 64-bit octal numbers.
"d_PRIu64"
From _q_u_a_d_f_i_o_._U:
This variable conditionally defines the PERL_PRIu64 symbol, which
indicates that stdio has a symbol to print 64-bit unsigned decimal
numbers.
"d_PRIx64"
From _q_u_a_d_f_i_o_._U:
This variable conditionally defines the PERL_PRIx64 symbol, which
indicates that stdio has a symbol to print 64-bit hexadecimal
numbers.
"d_PRIXU64"
From _q_u_a_d_f_i_o_._U:
This variable conditionally defines the PERL_PRIXU64 symbol, which
indicates that stdio has a symbol to print 64-bit hExADECimAl
numbers. The "U" in the name is to separate this from d_PRIx64 so
that even case-blind systems can see the difference.
"d_procselfexe"
From _d___p_r_o_c_s_e_l_f_e_x_e_._U:
Defined if $procselfexe is symlink to the absolute pathname of the
executing program.
"d_pseudofork"
From _d___v_f_o_r_k_._U:
This variable conditionally defines the "HAS_PSEUDOFORK" symbol,
which indicates that an emulation of the fork routine is available.
"d_pthread_atfork"
From _d___p_t_h_r_e_a_d___a_t_f_o_r_k_._U:
This variable conditionally defines the "HAS_PTHREAD_ATFORK" symbol,
which indicates to the C program that the pptthhrreeaadd__aattffoorrkk(()) routine is
available.
"d_pthread_attr_setscope"
From _d___p_t_h_r_e_a_d___a_t_t_r___s_s_._U:
This variable conditionally defines "HAS_PTHREAD_ATTR_SETSCOPE" if
pptthhrreeaadd__aattttrr__sseettssccooppee(()) is available to set the contention scope
attribute of a thread attribute object.
"d_pthread_yield"
From _d___p_t_h_r_e_a_d___y_._U:
This variable conditionally defines the "HAS_PTHREAD_YIELD" symbol if
the pthread_yield routine is available to yield the execution of the
current thread.
"d_ptrdiff_t"
From _d___p_t_r_d_i_f_f___t_._U:
This symbol will be defined if the C compiler supports ptrdiff_t.
"d_pwage"
From _i___p_w_d_._U:
This variable conditionally defines "PWAGE", which indicates that
struct passwd contains pw_age.
"d_pwchange"
From _i___p_w_d_._U:
This variable conditionally defines "PWCHANGE", which indicates that
struct passwd contains pw_change.
"d_pwclass"
From _i___p_w_d_._U:
This variable conditionally defines "PWCLASS", which indicates that
struct passwd contains pw_class.
"d_pwcomment"
From _i___p_w_d_._U:
This variable conditionally defines "PWCOMMENT", which indicates that
struct passwd contains pw_comment.
"d_pwexpire"
From _i___p_w_d_._U:
This variable conditionally defines "PWEXPIRE", which indicates that
struct passwd contains pw_expire.
"d_pwgecos"
From _i___p_w_d_._U:
This variable conditionally defines "PWGECOS", which indicates that
struct passwd contains pw_gecos.
"d_pwpasswd"
From _i___p_w_d_._U:
This variable conditionally defines "PWPASSWD", which indicates that
struct passwd contains pw_passwd.
"d_pwquota"
From _i___p_w_d_._U:
This variable conditionally defines "PWQUOTA", which indicates that
struct passwd contains pw_quota.
"d_qgcvt"
From _d___q_g_c_v_t_._U:
This variable conditionally defines the "HAS_QGCVT" symbol, which
indicates to the C program that the qqggccvvtt(()) routine is available.
"d_quad"
From _q_u_a_d_t_y_p_e_._U:
This variable, if defined, tells that there's a 64-bit integer type,
quadtype.
"d_querylocale"
From _d___n_e_w_l_o_c_a_l_e_._U:
This variable conditionally defines the "HAS_QUERYLOCALE" symbol,
which indicates to the C program that the qquueerryyllooccaallee(()) routine is
available to return the name of the locale for a category mask.
"d_random_r"
From _d___r_a_n_d_o_m___r_._U:
This variable conditionally defines the "HAS_RANDOM_R" symbol, which
indicates to the C program that the rraannddoomm__rr(()) routine is available.
"d_re_comp"
From _d___r_e_g_c_m_p_._U:
This variable conditionally defines the "HAS_RECOMP" symbol, which
indicates to the C program that the rree__ccoommpp(()) routine is available
for regular pattern matching (usually on "BSD"). If so, it is likely
that rree__eexxeecc(()) exists.
"d_readdir"
From _d___r_e_a_d_d_i_r_._U:
This variable conditionally defines "HAS_READDIR" if rreeaaddddiirr(()) is
available to read directory entries.
"d_readdir64_r"
From _d___r_e_a_d_d_i_r_6_4___r_._U:
This variable conditionally defines the HAS_READDIR64_R symbol, which
indicates to the C program that the rreeaaddddiirr6644__rr(()) routine is
available.
"d_readdir_r"
From _d___r_e_a_d_d_i_r___r_._U:
This variable conditionally defines the "HAS_READDIR_R" symbol, which
indicates to the C program that the rreeaaddddiirr__rr(()) routine is available.
"d_readlink"
From _d___r_e_a_d_l_i_n_k_._U:
This variable conditionally defines the "HAS_READLINK" symbol, which
indicates to the C program that the rreeaaddlliinnkk(()) routine is available
to read the value of a symbolic link.
"d_readv"
From _d___r_e_a_d_v_._U:
This variable conditionally defines the "HAS_READV" symbol, which
indicates to the C program that the rreeaaddvv(()) routine is available.
"d_recvmsg"
From _d___r_e_c_v_m_s_g_._U:
This variable conditionally defines the "HAS_RECVMSG" symbol, which
indicates to the C program that the rreeccvvmmssgg(()) routine is available.
"d_regcmp"
From _d___r_e_g_c_m_p_._U:
This variable conditionally defines the "HAS_REGCMP" symbol, which
indicates to the C program that the rreeggccmmpp(()) routine is available for
regular pattern matching (usually on System V).
"d_regcomp"
From _d___r_e_g_c_m_p_._U:
This variable conditionally defines the "HAS_REGCOMP" symbol, which
indicates to the C program that the rreeggccoommpp(()) routine is available
for regular pattern matching (usually on _P_O_S_I_X_._2 conforming systems).
"d_remainder"
From _d___r_e_m_a_i_n_d_e_r_._U:
This variable conditionally defines the "HAS_REMAINDER" symbol, which
indicates to the C program that the rreemmaaiinnddeerr(()) routine is available.
"d_remquo"
From _d___r_e_m_q_u_o_._U:
This variable conditionally defines the "HAS_REMQUO" symbol, which
indicates to the C program that the rreemmqquuoo(()) routine is available.
"d_rename"
From _d___r_e_n_a_m_e_._U:
This variable conditionally defines the "HAS_RENAME" symbol, which
indicates to the C program that the rreennaammee(()) routine is available to
rename files.
"d_renameat"
From _d___f_s_a_t_._U:
This variable conditionally defines the "HAS_RENAMEAT" symbol, which
indicates the "POSIX" rreennaammeeaatt(()) function is available.
"d_rewinddir"
From _d___r_e_a_d_d_i_r_._U:
This variable conditionally defines "HAS_REWINDDIR" if rreewwiinnddddiirr(()) is
available.
"d_rint"
From _d___r_i_n_t_._U:
This variable conditionally defines the "HAS_RINT" symbol, which
indicates to the C program that the rriinntt(()) routine is available.
"d_rmdir"
From _d___r_m_d_i_r_._U:
This variable conditionally defines "HAS_RMDIR" if rrmmddiirr(()) is
available to remove directories.
"d_round"
From _d___r_o_u_n_d_._U:
This variable conditionally defines the "HAS_ROUND" symbol, which
indicates to the C program that the rroouunndd(()) routine is available.
"d_sbrkproto"
From _d___s_b_r_k_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_SBRK_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the ssbbrrkk(()) function. Otherwise, it is up to the program to
supply one.
"d_scalbn"
From _d___s_c_a_l_b_n_._U:
This variable conditionally defines the "HAS_SCALBN" symbol, which
indicates to the C program that the ssccaallbbnn(()) routine is available.
"d_scalbnl"
From _d___s_c_a_l_b_n_l_._U:
This variable conditionally defines the "HAS_SCALBNL" symbol, which
indicates to the C program that the ssccaallbbnnll(()) routine is available.
If ilogbl is also present we can emulate frexpl.
"d_sched_yield"
From _d___p_t_h_r_e_a_d___y_._U:
This variable conditionally defines the "HAS_SCHED_YIELD" symbol if
the sched_yield routine is available to yield the execution of the
current thread.
"d_scm_rights"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_SCM_RIGHTS" symbol,
which indicates that the "SCM_RIGHTS" is available. #ifdef is not
enough because it may be an enum, glibc has been known to do this.
"d_SCNfldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable conditionally defines the PERL_PRIfldbl symbol, which
indicates that stdio has a symbol to scan long doubles.
"d_seekdir"
From _d___r_e_a_d_d_i_r_._U:
This variable conditionally defines "HAS_SEEKDIR" if sseeeekkddiirr(()) is
available.
"d_select"
From _d___s_e_l_e_c_t_._U:
This variable conditionally defines "HAS_SELECT" if sseelleecctt(()) is
available to select active file descriptors. A <sys/time.h> inclusion
may be necessary for the timeout field.
"d_sem"
From _d___s_e_m_._U:
This variable conditionally defines the "HAS_SEM" symbol, which
indicates that the entire sem*(2) library is present.
"d_semctl"
From _d___s_e_m_c_t_l_._U:
This variable conditionally defines the "HAS_SEMCTL" symbol, which
indicates to the C program that the sseemmccttll(()) routine is available.
"d_semctl_semid_ds"
From _d___u_n_i_o_n___s_e_m_u_n_._U:
This variable conditionally defines "USE_SEMCTL_SEMID_DS", which
indicates that struct semid_ds * is to be used for semctl "IPC_STAT".
"d_semctl_semun"
From _d___u_n_i_o_n___s_e_m_u_n_._U:
This variable conditionally defines "USE_SEMCTL_SEMUN", which
indicates that union semun is to be used for semctl "IPC_STAT".
"d_semget"
From _d___s_e_m_g_e_t_._U:
This variable conditionally defines the "HAS_SEMGET" symbol, which
indicates to the C program that the sseemmggeett(()) routine is available.
"d_semop"
From _d___s_e_m_o_p_._U:
This variable conditionally defines the "HAS_SEMOP" symbol, which
indicates to the C program that the sseemmoopp(()) routine is available.
"d_sendmsg"
From _d___s_e_n_d_m_s_g_._U:
This variable conditionally defines the "HAS_SENDMSG" symbol, which
indicates to the C program that the sseennddmmssgg(()) routine is available.
"d_setegid"
From _d___s_e_t_e_g_i_d_._U:
This variable conditionally defines the "HAS_SETEGID" symbol, which
indicates to the C program that the sseetteeggiidd(()) routine is available to
change the effective gid of the current program.
"d_seteuid"
From _d___s_e_t_e_u_i_d_._U:
This variable conditionally defines the "HAS_SETEUID" symbol, which
indicates to the C program that the sseetteeuuiidd(()) routine is available to
change the effective uid of the current program.
"d_setgrent"
From _d___s_e_t_g_r_e_n_t_._U:
This variable conditionally defines the "HAS_SETGRENT" symbol, which
indicates to the C program that the sseettggrreenntt(()) routine is available
for initializing sequential access to the group database.
"d_setgrent_r"
From _d___s_e_t_g_r_e_n_t___r_._U:
This variable conditionally defines the "HAS_SETGRENT_R" symbol,
which indicates to the C program that the sseettggrreenntt__rr(()) routine is
available.
"d_setgrps"
From _d___s_e_t_g_r_p_s_._U:
This variable conditionally defines the "HAS_SETGROUPS" symbol, which
indicates to the C program that the sseettggrroouuppss(()) routine is available
to set the list of process groups.
"d_sethent"
From _d___s_e_t_h_e_n_t_._U:
This variable conditionally defines "HAS_SETHOSTENT" if sseetthhoosstteenntt(())
is available.
"d_sethostent_r"
From _d___s_e_t_h_o_s_t_e_n_t___r_._U:
This variable conditionally defines the "HAS_SETHOSTENT_R" symbol,
which indicates to the C program that the sseetthhoosstteenntt__rr(()) routine is
available.
"d_setitimer"
From _d___s_e_t_i_t_i_m_e_r_._U:
This variable conditionally defines the "HAS_SETITIMER" symbol, which
indicates to the C program that the sseettiittiimmeerr(()) routine is available.
"d_setlinebuf"
From _d___s_e_t_l_n_b_u_f_._U:
This variable conditionally defines the "HAS_SETLINEBUF" symbol,
which indicates to the C program that the sseettlliinneebbuuff(()) routine is
available to change stderr or stdout from block-buffered or
unbuffered to a line-buffered mode.
"d_setlocale"
From _d___s_e_t_l_o_c_a_l_e_._U:
This variable conditionally defines "HAS_SETLOCALE" if sseettllooccaallee(()) is
available to handle locale-specific ctype implementations.
"d_setlocale_accepts_any_locale_name"
From _d___s_e_t_l_o_c_a_l_e_._U:
This variable conditionally defines
"SETLOCALE_ACCEPTS_ANY_LOCALE_NAME" if sseettllooccaallee(()) accepts any locale
name.
"d_setlocale_r"
From _d___s_e_t_l_o_c_a_l_e___r_._U:
This variable conditionally defines the "HAS_SETLOCALE_R" symbol,
which indicates to the C program that the sseettllooccaallee__rr(()) routine is
available.
"d_setnent"
From _d___s_e_t_n_e_n_t_._U:
This variable conditionally defines "HAS_SETNETENT" if sseettnneetteenntt(()) is
available.
"d_setnetent_r"
From _d___s_e_t_n_e_t_e_n_t___r_._U:
This variable conditionally defines the "HAS_SETNETENT_R" symbol,
which indicates to the C program that the sseettnneetteenntt__rr(()) routine is
available.
"d_setpent"
From _d___s_e_t_p_e_n_t_._U:
This variable conditionally defines "HAS_SETPROTOENT" if
sseettpprroottooeenntt(()) is available.
"d_setpgid"
From _d___s_e_t_p_g_i_d_._U:
This variable conditionally defines the "HAS_SETPGID" symbol if the
setpgid(pid, gpid) function is available to set process group "ID".
"d_setpgrp"
From _d___s_e_t_p_g_r_p_._U:
This variable conditionally defines "HAS_SETPGRP" if sseettppggrrpp(()) is
available to set the current process group.
"d_setpgrp2"
From _d___s_e_t_p_g_r_p_2_._U:
This variable conditionally defines the HAS_SETPGRP2 symbol, which
indicates to the C program that the sseettppggrrpp22(()) (as in _D_G_/_"_U_X_")
routine is available to set the current process group.
"d_setprior"
From _d___s_e_t_p_r_i_o_r_._U:
This variable conditionally defines "HAS_SETPRIORITY" if
sseettpprriioorriittyy(()) is available to set a process's priority.
"d_setproctitle"
From _d___s_e_t_p_r_o_c_t_i_t_l_e_._U:
This variable conditionally defines the "HAS_SETPROCTITLE" symbol,
which indicates to the C program that the sseettpprrooccttiittllee(()) routine is
available.
"d_setprotoent_r"
From _d___s_e_t_p_r_o_t_o_e_n_t___r_._U:
This variable conditionally defines the "HAS_SETPROTOENT_R" symbol,
which indicates to the C program that the sseettpprroottooeenntt__rr(()) routine is
available.
"d_setpwent"
From _d___s_e_t_p_w_e_n_t_._U:
This variable conditionally defines the "HAS_SETPWENT" symbol, which
indicates to the C program that the sseettppwweenntt(()) routine is available
for initializing sequential access to the passwd database.
"d_setpwent_r"
From _d___s_e_t_p_w_e_n_t___r_._U:
This variable conditionally defines the "HAS_SETPWENT_R" symbol,
which indicates to the C program that the sseettppwweenntt__rr(()) routine is
available.
"d_setregid"
From _d___s_e_t_r_e_g_i_d_._U:
This variable conditionally defines "HAS_SETREGID" if sseettrreeggiidd(()) is
available to change the real and effective gid of the current
process.
"d_setresgid"
From _d___s_e_t_r_e_g_i_d_._U:
This variable conditionally defines "HAS_SETRESGID" if sseettrreessggiidd(()) is
available to change the real, effective and saved gid of the current
process.
"d_setresuid"
From _d___s_e_t_r_e_u_i_d_._U:
This variable conditionally defines "HAS_SETREUID" if sseettrreessuuiidd(()) is
available to change the real, effective and saved uid of the current
process.
"d_setreuid"
From _d___s_e_t_r_e_u_i_d_._U:
This variable conditionally defines "HAS_SETREUID" if sseettrreeuuiidd(()) is
available to change the real and effective uid of the current
process.
"d_setrgid"
From _d___s_e_t_r_g_i_d_._U:
This variable conditionally defines the "HAS_SETRGID" symbol, which
indicates to the C program that the sseettrrggiidd(()) routine is available to
change the real gid of the current program.
"d_setruid"
From _d___s_e_t_r_u_i_d_._U:
This variable conditionally defines the "HAS_SETRUID" symbol, which
indicates to the C program that the sseettrruuiidd(()) routine is available to
change the real uid of the current program.
"d_setsent"
From _d___s_e_t_s_e_n_t_._U:
This variable conditionally defines "HAS_SETSERVENT" if sseettsseerrvveenntt(())
is available.
"d_setservent_r"
From _d___s_e_t_s_e_r_v_e_n_t___r_._U:
This variable conditionally defines the "HAS_SETSERVENT_R" symbol,
which indicates to the C program that the sseettsseerrvveenntt__rr(()) routine is
available.
"d_setsid"
From _d___s_e_t_s_i_d_._U:
This variable conditionally defines "HAS_SETSID" if sseettssiidd(()) is
available to set the process group "ID".
"d_setvbuf"
From _d___s_e_t_v_b_u_f_._U:
This variable conditionally defines the "HAS_SETVBUF" symbol, which
indicates to the C program that the sseettvvbbuuff(()) routine is available to
change buffering on an open stdio stream.
"d_shm"
From _d___s_h_m_._U:
This variable conditionally defines the "HAS_SHM" symbol, which
indicates that the entire shm*(2) library is present.
"d_shmat"
From _d___s_h_m_a_t_._U:
This variable conditionally defines the "HAS_SHMAT" symbol, which
indicates to the C program that the sshhmmaatt(()) routine is available.
"d_shmatprototype"
From _d___s_h_m_a_t_._U:
This variable conditionally defines the "HAS_SHMAT_PROTOTYPE" symbol,
which indicates that _s_y_s_/_s_h_m_._h has a prototype for shmat.
"d_shmctl"
From _d___s_h_m_c_t_l_._U:
This variable conditionally defines the "HAS_SHMCTL" symbol, which
indicates to the C program that the sshhmmccttll(()) routine is available.
"d_shmdt"
From _d___s_h_m_d_t_._U:
This variable conditionally defines the "HAS_SHMDT" symbol, which
indicates to the C program that the sshhmmddtt(()) routine is available.
"d_shmget"
From _d___s_h_m_g_e_t_._U:
This variable conditionally defines the "HAS_SHMGET" symbol, which
indicates to the C program that the sshhmmggeett(()) routine is available.
"d_sigaction"
From _d___s_i_g_a_c_t_i_o_n_._U:
This variable conditionally defines the "HAS_SIGACTION" symbol, which
indicates that the Vr4 ssiiggaaccttiioonn(()) routine is available.
"d_siginfo_si_addr"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_ADDR" symbol,
which indicates that the siginfo_t struct has the si_addr member.
"d_siginfo_si_band"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_BAND" symbol,
which indicates that the siginfo_t struct has the si_band member.
"d_siginfo_si_errno"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_ERRNO"
symbol, which indicates that the siginfo_t struct has the si_errno
member.
"d_siginfo_si_fd"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_FD" symbol,
which indicates that the siginfo_t struct has the si_fd member.
"d_siginfo_si_pid"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_PID" symbol,
which indicates that the siginfo_t struct has the si_pid member.
"d_siginfo_si_status"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_STATUS"
symbol, which indicates that the siginfo_t struct has the si_status
member.
"d_siginfo_si_uid"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_UID" symbol,
which indicates that the siginfo_t struct has the si_uid member.
"d_siginfo_si_value"
From _d___s_i_g_i_n_f_o___s_i_._U:
This variable conditionally defines the "HAS_SIGINFO_SI_VALUE"
symbol, which indicates that the siginfo_t struct has the si_value
member.
"d_signbit"
From _d___s_i_g_n_b_i_t_._U:
This variable conditionally defines the "HAS_SIGNBIT" symbol, which
indicates to the C program that the ssiiggnnbbiitt(()) routine is available
and safe to use with perl's intern "NV" type.
"d_sigprocmask"
From _d___s_i_g_p_r_o_c_m_a_s_k_._U:
This variable conditionally defines "HAS_SIGPROCMASK" if
ssiiggpprrooccmmaasskk(()) is available to examine or change the signal mask of
the calling process.
"d_sigsetjmp"
From _d___s_i_g_s_e_t_j_m_p_._U:
This variable conditionally defines the "HAS_SIGSETJMP" symbol, which
indicates that the ssiiggsseettjjmmpp(()) routine is available to call sseettjjmmpp(())
and optionally save the process's signal mask.
"d_sin6_scope_id"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the HAS_SIN6_SCOPE_ID symbol,
which indicates that a struct sockaddr_in6 structure has the
sin6_scope_id member.
"d_sitearch"
From _s_i_t_e_a_r_c_h_._U:
This variable conditionally defines "SITEARCH" to hold the pathname
of architecture-dependent library files for $package. If $sitearch
is the same as $archlib, then this is set to undef.
"d_snprintf"
From _d___s_n_p_r_i_n_t_f_._U:
This variable conditionally defines the "HAS_SNPRINTF" symbol, which
indicates to the C program that the snprintf () library function is
available.
"d_sockaddr_in6"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the HAS_SOCKADDR_IN6 symbol,
which indicates the availability of a struct sockaddr_in6.
"d_sockaddr_sa_len"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_SOCKADDR_SA_LEN" symbol,
which indicates that a struct sockaddr structure has the sa_len
member.
"d_sockaddr_storage"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_SOCKADDR_STORAGE"
symbol, which indicates the availability of a struct
sockaddr_storage.
"d_sockatmark"
From _d___s_o_c_k_a_t_m_a_r_k_._U:
This variable conditionally defines the "HAS_SOCKATMARK" symbol,
which indicates to the C program that the ssoocckkaattmmaarrkk(()) routine is
available.
"d_sockatmarkproto"
From _d___s_o_c_k_a_t_m_a_r_k_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_SOCKATMARK_PROTO"
symbol, which indicates to the C program that the system provides a
prototype for the ssoocckkaattmmaarrkk(()) function. Otherwise, it is up to the
program to supply one.
"d_socket"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines "HAS_SOCKET", which indicates
that the "BSD" socket interface is supported.
"d_socklen_t"
From _d___s_o_c_k_l_e_n___t_._U:
This symbol will be defined if the C compiler supports socklen_t.
"d_sockpair"
From _d___s_o_c_k_e_t_._U:
This variable conditionally defines the "HAS_SOCKETPAIR" symbol,
which indicates that the "BSD" ssoocckkeettppaaiirr(()) is supported.
"d_socks5_init"
From _d___s_o_c_k_s_5___i_n_i_t_._U:
This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
indicates to the C program that the ssoocckkss55__iinniitt(()) routine is
available.
"d_sqrtl"
From _d___s_q_r_t_l_._U:
This variable conditionally defines the "HAS_SQRTL" symbol, which
indicates to the C program that the ssqqrrttll(()) routine is available.
"d_srand48_r"
From _d___s_r_a_n_d_4_8___r_._U:
This variable conditionally defines the HAS_SRAND48_R symbol, which
indicates to the C program that the ssrraanndd4488__rr(()) routine is available.
"d_srandom_r"
From _d___s_r_a_n_d_o_m___r_._U:
This variable conditionally defines the "HAS_SRANDOM_R" symbol, which
indicates to the C program that the ssrraannddoomm__rr(()) routine is available.
"d_sresgproto"
From _d___s_r_e_s_g_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_SETRESGID_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the sseettrreessggiidd(()) function. Otherwise, it is up to the program to
supply one.
"d_sresuproto"
From _d___s_r_e_s_u_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_SETRESUID_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the sseettrreessuuiidd(()) function. Otherwise, it is up to the program to
supply one.
"d_stat"
From _d___s_t_a_t_._U:
This variable conditionally defines "HAS_STAT" if ssttaatt(()) is available
to get file status.
"d_statblks"
From _d___s_t_a_t_b_l_k_s_._U:
This variable conditionally defines "USE_STAT_BLOCKS" if this system
has a stat structure declaring st_blksize and st_blocks.
"d_statfs_f_flags"
From _d___s_t_a_t_f_s___f___f_l_a_g_s_._U:
This variable conditionally defines the "HAS_STRUCT_STATFS_F_FLAGS"
symbol, which indicates to struct statfs from has f_flags member.
This kind of struct statfs is coming from _s_y_s_/_m_o_u_n_t_._h ("BSD"), not
from _s_y_s_/_s_t_a_t_f_s_._h ("SYSV").
"d_statfs_s"
From _d___s_t_a_t_f_s___s_._U:
This variable conditionally defines the "HAS_STRUCT_STATFS" symbol,
which indicates that the struct statfs is supported.
"d_static_inline"
From _d___s_t_a_t_i_c___i_n_l_i_n_e_._U:
This variable conditionally defines the "HAS_STATIC_INLINE" symbol,
which indicates that the C compiler supports C99-style static inline.
That is, the function can't be called from another translation unit.
"d_statvfs"
From _d___s_t_a_t_v_f_s_._U:
This variable conditionally defines the "HAS_STATVFS" symbol, which
indicates to the C program that the ssttaattvvffss(()) routine is available.
"d_stdio_cnt_lval"
From _d___s_t_d_s_t_d_i_o_._U:
This variable conditionally defines "STDIO_CNT_LVALUE" if the
"FILE_cnt" macro can be used as an lvalue.
"d_stdio_ptr_lval"
From _d___s_t_d_s_t_d_i_o_._U:
This variable conditionally defines "STDIO_PTR_LVALUE" if the
"FILE_ptr" macro can be used as an lvalue.
"d_stdio_ptr_lval_nochange_cnt"
From _d___s_t_d_s_t_d_i_o_._U:
This symbol is defined if using the "FILE_ptr" macro as an lvalue to
increase the pointer by n leaves File_cnt(fp) unchanged.
"d_stdio_ptr_lval_sets_cnt"
From _d___s_t_d_s_t_d_i_o_._U:
This symbol is defined if using the "FILE_ptr" macro as an lvalue to
increase the pointer by n has the side effect of decreasing the value
of File_cnt(fp) by n.
"d_stdio_stream_array"
From _s_t_d_i_o___s_t_r_e_a_m_s_._U:
This variable tells whether there is an array holding the stdio
streams.
"d_stdiobase"
From _d___s_t_d_s_t_d_i_o_._U:
This variable conditionally defines "USE_STDIO_BASE" if this system
has a "FILE" structure declaring a usable _base field (or equivalent)
in _s_t_d_i_o_._h.
"d_stdstdio"
From _d___s_t_d_s_t_d_i_o_._U:
This variable conditionally defines "USE_STDIO_PTR" if this system
has a "FILE" structure declaring usable _ptr and _cnt fields (or
equivalent) in _s_t_d_i_o_._h.
"d_strcoll"
From _d___s_t_r_c_o_l_l_._U:
This variable conditionally defines "HAS_STRCOLL" if ssttrrccoollll(()) is
available to compare strings using collating information.
"d_strerror_l"
From _d___s_t_r_e_r_r_o_r___l_._U:
This variable conditionally defines the "HAS_STRERROR_L" symbol,
which indicates to the C program that the ssttrreerrrroorr__ll(()) routine is
available to return the error message for a given errno value in a
particular locale (identified by a locale_t object).
"d_strerror_r"
From _d___s_t_r_e_r_r_o_r___r_._U:
This variable conditionally defines the "HAS_STRERROR_R" symbol,
which indicates to the C program that the ssttrreerrrroorr__rr(()) routine is
available.
"d_strftime"
From _d___s_t_r_f_t_i_m_e_._U:
This variable conditionally defines the "HAS_STRFTIME" symbol, which
indicates to the C program that the ssttrrffttiimmee(()) routine is available.
"d_strlcat"
From _d___s_t_r_l_c_a_t_._U:
This variable conditionally defines the "HAS_STRLCAT" symbol, which
indicates to the C program that the strlcat () routine is available.
"d_strlcpy"
From _d___s_t_r_l_c_p_y_._U:
This variable conditionally defines the "HAS_STRLCPY" symbol, which
indicates to the C program that the strlcpy () routine is available.
"d_strnlen"
From _d___s_t_r_n_l_e_n_._U:
This variable conditionally defines the "HAS_STRNLEN" symbol, which
indicates to the C program that the strnlen () routine is available.
"d_strtod"
From _d___s_t_r_t_o_d_._U:
This variable conditionally defines the "HAS_STRTOD" symbol, which
indicates to the C program that the ssttrrttoodd(()) routine is available to
provide better numeric string conversion than aattooff(()).
"d_strtod_l"
From _d___s_t_r_t_o_d___l_._U:
This variable conditionally defines the "HAS_STRTOD_L" symbol, which
indicates to the C program that the ssttrrttoodd__ll(()) routine is available.
"d_strtol"
From _d___s_t_r_t_o_l_._U:
This variable conditionally defines the "HAS_STRTOL" symbol, which
indicates to the C program that the ssttrrttooll(()) routine is available to
provide better numeric string conversion than aattooii(()) and friends.
"d_strtold"
From _d___s_t_r_t_o_l_d_._U:
This variable conditionally defines the "HAS_STRTOLD" symbol, which
indicates to the C program that the ssttrrttoolldd(()) routine is available.
"d_strtold_l"
From _d___s_t_r_t_o_l_d___l_._U:
This variable conditionally defines the "HAS_STRTOLD_L" symbol, which
indicates to the C program that the ssttrrttoolldd__ll(()) routine is available.
"d_strtoll"
From _d___s_t_r_t_o_l_l_._U:
This variable conditionally defines the "HAS_STRTOLL" symbol, which
indicates to the C program that the ssttrrttoollll(()) routine is available.
"d_strtoq"
From _d___s_t_r_t_o_q_._U:
This variable conditionally defines the "HAS_STRTOQ" symbol, which
indicates to the C program that the ssttrrttooqq(()) routine is available.
"d_strtoul"
From _d___s_t_r_t_o_u_l_._U:
This variable conditionally defines the "HAS_STRTOUL" symbol, which
indicates to the C program that the ssttrrttoouull(()) routine is available to
provide conversion of strings to unsigned long.
"d_strtoull"
From _d___s_t_r_t_o_u_l_l_._U:
This variable conditionally defines the "HAS_STRTOULL" symbol, which
indicates to the C program that the ssttrrttoouullll(()) routine is available.
"d_strtouq"
From _d___s_t_r_t_o_u_q_._U:
This variable conditionally defines the "HAS_STRTOUQ" symbol, which
indicates to the C program that the ssttrrttoouuqq(()) routine is available.
"d_strxfrm"
From _d___s_t_r_x_f_r_m_._U:
This variable conditionally defines "HAS_STRXFRM" if ssttrrxxffrrmm(()) is
available to transform strings.
"d_strxfrm_l"
From _d___s_t_r_x_f_r_m___l_._U:
This variable conditionally defines "HAS_STRXFRM_L" if ssttrrxxffrrmm__ll(()) is
available to transform strings.
"d_suidsafe"
From _d___d_o_s_u_i_d_._U:
This variable conditionally defines "SETUID_SCRIPTS_ARE_SECURE_NOW"
if setuid scripts can be secure. This test looks in _/_d_e_v_/_f_d_/.
"d_symlink"
From _d___s_y_m_l_i_n_k_._U:
This variable conditionally defines the "HAS_SYMLINK" symbol, which
indicates to the C program that the ssyymmlliinnkk(()) routine is available to
create symbolic links.
"d_syscall"
From _d___s_y_s_c_a_l_l_._U:
This variable conditionally defines "HAS_SYSCALL" if ssyyssccaallll(()) is
available call arbitrary system calls.
"d_syscallproto"
From _d___s_y_s_c_a_l_l_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_SYSCALL_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the ssyyssccaallll(()) function. Otherwise, it is up to the program to
supply one.
"d_sysconf"
From _d___s_y_s_c_o_n_f_._U:
This variable conditionally defines the "HAS_SYSCONF" symbol, which
indicates to the C program that the ssyyssccoonnff(()) routine is available to
determine system related limits and options.
"d_sysernlst"
From _d___s_t_r_e_r_r_o_r_._U:
This variable conditionally defines "HAS_SYS_ERRNOLIST" if
sys_errnolist[] is available to translate error numbers to the
symbolic name.
"d_syserrlst"
From _d___s_t_r_e_r_r_o_r_._U:
This variable conditionally defines "HAS_SYS_ERRLIST" if
sys_errlist[] is available to translate error numbers to strings.
"d_system"
From _d___s_y_s_t_e_m_._U:
This variable conditionally defines "HAS_SYSTEM" if ssyysstteemm(()) is
available to issue a shell command.
"d_tcgetpgrp"
From _d___t_c_g_t_p_g_r_p_._U:
This variable conditionally defines the "HAS_TCGETPGRP" symbol, which
indicates to the C program that the ttccggeettppggrrpp(()) routine is available.
to get foreground process group "ID".
"d_tcsetpgrp"
From _d___t_c_s_t_p_g_r_p_._U:
This variable conditionally defines the "HAS_TCSETPGRP" symbol, which
indicates to the C program that the ttccsseettppggrrpp(()) routine is available
to set foreground process group "ID".
"d_telldir"
From _d___r_e_a_d_d_i_r_._U:
This variable conditionally defines "HAS_TELLDIR" if tteellllddiirr(()) is
available.
"d_telldirproto"
From _d___t_e_l_l_d_i_r_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_TELLDIR_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the tteellllddiirr(()) function. Otherwise, it is up to the program to
supply one.
"d_tgamma"
From _d___t_g_a_m_m_a_._U:
This variable conditionally defines the "HAS_TGAMMA" symbol, which
indicates to the C program that the ttggaammmmaa(()) routine is available for
the gamma function. See also d_lgamma.
"d_thread_local"
From _d___t_h_r_e_a_d___l_o_c_a_l_._U:
This variable conditionally defines the "PERL_THREAD_LOCAL" symbol.
In turn that gives a linkage specification for thread-local storage.
"d_thread_safe_nl_langinfo_l"
From _d___n_l___l_a_n_g_i_n_f_o___l_._U:
This variable contains the eventual value of the
"HAS_THREAD_SAFE_NL_LANGINFO_L" symbol, which indicates if the
nnll__llaannggiinnffoo__ll(()) function exists and is thread-safe.
"d_time"
From _d___t_i_m_e_._U:
This variable conditionally defines the "HAS_TIME" symbol, which
indicates that the ttiimmee(()) routine exists. The ttiimmee(()) routine is
normally provided on "UNIX" systems.
"d_timegm"
From _d___t_i_m_e_g_m_._U:
This variable conditionally defines the "HAS_TIMEGM" symbol, which
indicates to the C program that the timegm () routine is available.
"d_times"
From _d___t_i_m_e_s_._U:
This variable conditionally defines the "HAS_TIMES" symbol, which
indicates that the ttiimmeess(()) routine exists. The ttiimmeess(()) routine is
normally provided on "UNIX" systems. You may have to include
<sys/times.h>.
"d_tm_tm_gmtoff"
From _i___t_i_m_e_._U:
This variable conditionally defines "HAS_TM_TM_GMTOFF", which
indicates to the C program that the struct tm has the tm_gmtoff
field.
"d_tm_tm_zone"
From _i___t_i_m_e_._U:
This variable conditionally defines "HAS_TM_TM_ZONE", which indicates
to the C program that the struct tm has the tm_zone field.
"d_tmpnam_r"
From _d___t_m_p_n_a_m___r_._U:
This variable conditionally defines the "HAS_TMPNAM_R" symbol, which
indicates to the C program that the ttmmppnnaamm__rr(()) routine is available.
"d_towlower"
From _d___t_o_w_l_o_w_e_r_._U:
This variable conditionally defines the "HAS_TOWLOWER" symbol, which
indicates to the C program that the ttoowwlloowweerr(()) routine is available.
"d_towupper"
From _d___t_o_w_u_p_p_e_r_._U:
This variable conditionally defines the "HAS_TOWUPPER" symbol, which
indicates to the C program that the ttoowwuuppppeerr(()) routine is available.
"d_trunc"
From _d___t_r_u_n_c_._U:
This variable conditionally defines the "HAS_TRUNC" symbol, which
indicates to the C program that the ttrruunncc(()) routine is available to
round doubles towards zero.
"d_truncate"
From _d___t_r_u_n_c_a_t_e_._U:
This variable conditionally defines "HAS_TRUNCATE" if ttrruunnccaattee(()) is
available to truncate files.
"d_truncl"
From _d___t_r_u_n_c_l_._U:
This variable conditionally defines the "HAS_TRUNCL" symbol, which
indicates to the C program that the ttrruunnccll(()) routine is available to
round long doubles towards zero. If copysignl is also present, we can
emulate modfl.
"d_ttyname_r"
From _d___t_t_y_n_a_m_e___r_._U:
This variable conditionally defines the "HAS_TTYNAME_R" symbol, which
indicates to the C program that the ttttyynnaammee__rr(()) routine is available.
"d_tzname"
From _d___t_z_n_a_m_e_._U:
This variable conditionally defines "HAS_TZNAME" if tzname[] is
available to access timezone names.
"d_u32align"
From _d___u_3_2_a_l_i_g_n_._U:
This variable tells whether you must access character data through
U32-aligned pointers.
"d_ualarm"
From _d___u_a_l_a_r_m_._U:
This variable conditionally defines the "HAS_UALARM" symbol, which
indicates to the C program that the uuaallaarrmm(()) routine is available.
"d_umask"
From _d___u_m_a_s_k_._U:
This variable conditionally defines the "HAS_UMASK" symbol, which
indicates to the C program that the uummaasskk(()) routine is available. to
set and get the value of the file creation mask.
"d_uname"
From _d___g_e_t_h_n_a_m_e_._U:
This variable conditionally defines the "HAS_UNAME" symbol, which
indicates to the C program that the uunnaammee(()) routine may be used to
derive the host name.
"d_union_semun"
From _d___u_n_i_o_n___s_e_m_u_n_._U:
This variable conditionally defines "HAS_UNION_SEMUN" if the union
semun is defined by including <sys/sem.h>.
"d_unlinkat"
From _d___f_s_a_t_._U:
This variable conditionally defines the "HAS_UNLINKAT" symbol, which
indicates the "POSIX" uunnlliinnkkaatt(()) function isavailable.
"d_unordered"
From _d___u_n_o_r_d_e_r_e_d_._U:
This variable conditionally defines the "HAS_UNORDERED" symbol, which
indicates to the C program that the uunnoorrddeerreedd(()) routine is available.
"d_unsetenv"
From _d___u_n_s_e_t_e_n_v_._U:
This variable conditionally defines the "HAS_UNSETENV" symbol, which
indicates to the C program that the unsetenv () routine is available.
"d_uselocale"
From _d___n_e_w_l_o_c_a_l_e_._U:
This variable conditionally defines the "HAS_USELOCALE" symbol, which
indicates to the C program that the uusseellooccaallee(()) routine is available
to set the current locale for the calling thread.
"d_usleep"
From _d___u_s_l_e_e_p_._U:
This variable conditionally defines "HAS_USLEEP" if uusslleeeepp(()) is
available to do high granularity sleeps.
"d_usleepproto"
From _d___u_s_l_e_e_p_p_r_o_t_o_._U:
This variable conditionally defines the "HAS_USLEEP_PROTO" symbol,
which indicates to the C program that the system provides a prototype
for the uusslleeeepp(()) function. Otherwise, it is up to the program to
supply one.
"d_ustat"
From _d___u_s_t_a_t_._U:
This variable conditionally defines "HAS_USTAT" if uussttaatt(()) is
available to query file system statistics by dev_t.
"d_vendorarch"
From _v_e_n_d_o_r_a_r_c_h_._U:
This variable conditionally defined "PERL_VENDORARCH".
"d_vendorbin"
From _v_e_n_d_o_r_b_i_n_._U:
This variable conditionally defines "PERL_VENDORBIN".
"d_vendorlib"
From _v_e_n_d_o_r_l_i_b_._U:
This variable conditionally defines "PERL_VENDORLIB".
"d_vendorscript"
From _v_e_n_d_o_r_s_c_r_i_p_t_._U:
This variable conditionally defines "PERL_VENDORSCRIPT".
"d_vfork"
From _d___v_f_o_r_k_._U:
This variable conditionally defines the "HAS_VFORK" symbol, which
indicates the vvffoorrkk(()) routine is available.
"d_void_closedir"
From _d___c_l_o_s_e_d_i_r_._U:
This variable conditionally defines "VOID_CLOSEDIR" if cclloosseeddiirr(())
does not return a value.
"d_voidsig"
From _d___v_o_i_d_s_i_g_._U:
This variable conditionally defines "VOIDSIG" if this system declares
"void (*signal(...))()" in _s_i_g_n_a_l_._h. The old way was to declare it
as "int (*signal(...))()".
"d_voidtty"
From _i___s_y_s_i_o_c_t_l_._U:
This variable conditionally defines "USE_IOCNOTTY" to indicate that
the iiooccttll(()) call with "TIOCNOTTY" should be used to void tty
association. Otherwise (on "USG" probably), it is enough to close
the standard file descriptors and do a sseettppggrrpp(()).
"d_vsnprintf"
From _d___s_n_p_r_i_n_t_f_._U:
This variable conditionally defines the "HAS_VSNPRINTF" symbol, which
indicates to the C program that the vsnprintf () library function is
available.
"d_wait4"
From _d___w_a_i_t_4_._U:
This variable conditionally defines the HAS_WAIT4 symbol, which
indicates the wwaaiitt44(()) routine is available.
"d_waitpid"
From _d___w_a_i_t_p_i_d_._U:
This variable conditionally defines "HAS_WAITPID" if wwaaiittppiidd(()) is
available to wait for child process.
"d_wcrtomb"
From _d___w_c_r_t_o_m_b_._U:
This variable conditionally defines the "HAS_WCRTOMB" symbol if the
wwccrrttoommbb(()) routine is available to be used to convert a wide character
into a multi-byte character.
"d_wcscmp"
From _d___w_c_s_c_m_p_._U:
This variable conditionally defines the "HAS_WCSCMP" symbol if the
wwccssccmmpp(()) routine is available and can be used to compare wide
character strings.
"d_wcstombs"
From _d___w_c_s_t_o_m_b_s_._U:
This variable conditionally defines the "HAS_WCSTOMBS" symbol, which
indicates to the C program that the wwccssttoommbbss(()) routine is available
to convert wide character strings to multibyte strings.
"d_wcsxfrm"
From _d___w_c_s_x_f_r_m_._U:
This variable conditionally defines the "HAS_WCSXFRM" symbol if the
wwccssxxffrrmm(()) routine is available and can be used to compare wide
character strings.
"d_wctomb"
From _d___w_c_t_o_m_b_._U:
This variable conditionally defines the "HAS_WCTOMB" symbol, which
indicates to the C program that the wwccttoommbb(()) routine is available to
convert a wide character to a multibyte.
"d_writev"
From _d___w_r_i_t_e_v_._U:
This variable conditionally defines the "HAS_WRITEV" symbol, which
indicates to the C program that the wwrriitteevv(()) routine is available.
"d_xenix"
From _G_u_e_s_s_._U:
This variable conditionally defines the symbol "XENIX", which alerts
the C program that it runs under Xenix.
"date"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the date program. After Configure runs, the
value is reset to a plain "date" and is not useful.
"db_hashtype"
From _i___d_b_._U:
This variable contains the type of the hash structure element in the
<db.h> header file. In older versions of "DB", it was int, while in
newer ones it is u_int32_t.
"db_prefixtype"
From _i___d_b_._U:
This variable contains the type of the prefix structure element in
the <db.h> header file. In older versions of "DB", it was int, while
in newer ones it is size_t.
"db_version_major"
From _i___d_b_._U:
This variable contains the major version number of Berkeley "DB"
found in the <db.h> header file.
"db_version_minor"
From _i___d_b_._U:
This variable contains the minor version number of Berkeley "DB"
found in the <db.h> header file. For "DB" version 1 this is always
0.
"db_version_patch"
From _i___d_b_._U:
This variable contains the patch version number of Berkeley "DB"
found in the <db.h> header file. For "DB" version 1 this is always
0.
"default_inc_excludes_dot"
From _d_e_f_a_u_l_t_i_n_c_d_o_t_._U:
When defined, remove the legacy _. from @"INC"
"direntrytype"
From _i___d_i_r_e_n_t_._U:
This symbol is set to "struct direct" or "struct dirent" depending on
whether dirent is available or not. You should use this pseudo type
to portably declare your directory entries.
"dlext"
From _d_l_e_x_t_._U:
This variable contains the extension that is to be used for the
dynamically loaded modules that perl generates.
"dlsrc"
From _d_l_s_r_c_._U:
This variable contains the name of the dynamic loading file that will
be used with the package.
"doubleinfbytes"
From _i_n_f_n_a_n_._U:
This variable contains comma-separated list of hexadecimal bytes for
the double precision infinity.
"doublekind"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, encodes the type of a double: 1 = "IEEE"
754 32-bit little endian, 2 = "IEEE" 754 32-bit big endian, 3 =
"IEEE" 754 64-bit little endian, 4 = "IEEE" 754 64-bit big endian, 5
= "IEEE" 754 128-bit little endian, 6 = "IEEE" 754 128-bit big
endian, 7 = "IEEE" 754 64-bit mixed endian le-be, 8 = "IEEE" 754
64-bit mixed endian be-le, 9 = "VAX" 32bit little endian F float
format 10 = "VAX" 64bit little endian D float format 11 = "VAX" 64bit
little endian G float format 12 = "IBM" 32bit format 13 = "IBM" 64bit
format 14 = Cray 64bit format -1 = unknown format.
"doublemantbits"
From _m_a_n_t_b_i_t_s_._U:
This symbol, if defined, tells how many mantissa bits there are in
double precision floating point format. Note that this is usually
"DBL_MANT_DIG" minus one, since with the standard "IEEE" 754 formats
"DBL_MANT_DIG" includes the implicit bit which doesn't really exist.
"doublenanbytes"
From _i_n_f_n_a_n_._U:
This variable contains comma-separated list of hexadecimal bytes for
the double precision not-a-number.
"doublesize"
From _d_o_u_b_l_e_s_i_z_e_._U:
This variable contains the value of the "DOUBLESIZE" symbol, which
indicates to the C program how many bytes there are in a double.
"drand01"
From _r_a_n_d_f_u_n_c_._U:
Indicates the macro to be used to generate normalized random numbers.
Uses randfunc, often divided by (double) (((unsigned long) 1 <<
randbits)) in order to normalize the result. In C programs, the
macro "Drand01" is mapped to drand01.
"drand48_r_proto"
From _d___d_r_a_n_d_4_8___r_._U:
This variable encodes the prototype of drand48_r. It is zero if
d_drand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_drand48_r is defined.
"dtrace"
From _u_s_e_d_t_r_a_c_e_._U:
This variable holds the location of the dtrace executable.
"dtraceobject"
From _d_t_r_a_c_e_o_b_j_e_c_t_._U:
Whether we need to build an object file with the dtrace tool.
"dtracexnolibs"
From _d_t_r_a_c_e_o_b_j_e_c_t_._U:
Whether dtrace accepts -xnolibs. If available we call dtrace -h and
dtrace -G with -xnolibs to allow dtrace to run in a jail on FreeBSD.
"dynamic_ext"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds a list of "XS" extension files we want to link
dynamically into the package. It is used by Makefile.
ee “eagain” From _n_b_l_o_c_k___i_o_._U:
This variable bears the symbolic errno code set by rreeaadd(()) when no
data is present on the file and non-blocking I/O was enabled
(otherwise, rreeaadd(()) blocks naturally).
"ebcdic"
From _e_b_c_d_i_c_._U:
This variable conditionally defines "EBCDIC" if this system uses
"EBCDIC" encoding.
"echo"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the echo program. After Configure runs, the
value is reset to a plain "echo" and is not useful.
"egrep"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the egrep program. After Configure runs, the
value is reset to a plain "egrep" and is not useful.
"emacs"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"endgrent_r_proto"
From _d___e_n_d_g_r_e_n_t___r_._U:
This variable encodes the prototype of endgrent_r. It is zero if
d_endgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_endgrent_r is defined.
"endhostent_r_proto"
From _d___e_n_d_h_o_s_t_e_n_t___r_._U:
This variable encodes the prototype of endhostent_r. It is zero if
d_endhostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_endhostent_r is defined.
"endnetent_r_proto"
From _d___e_n_d_n_e_t_e_n_t___r_._U:
This variable encodes the prototype of endnetent_r. It is zero if
d_endnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_endnetent_r is defined.
"endprotoent_r_proto"
From _d___e_n_d_p_r_o_t_o_e_n_t___r_._U:
This variable encodes the prototype of endprotoent_r. It is zero if
d_endprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_endprotoent_r is defined.
"endpwent_r_proto"
From _d___e_n_d_p_w_e_n_t___r_._U:
This variable encodes the prototype of endpwent_r. It is zero if
d_endpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_endpwent_r is defined.
"endservent_r_proto"
From _d___e_n_d_s_e_r_v_e_n_t___r_._U:
This variable encodes the prototype of endservent_r. It is zero if
d_endservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_endservent_r is defined.
"eunicefix"
From _I_n_i_t_._U:
When running under Eunice this variable contains a command which will
convert a shell script to the proper form of text file for it to be
executable by the shell. On other systems it is a no-op.
"exe_ext"
From _U_n_i_x_._U:
This is an old synonym for _exe.
"expr"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the expr program. After Configure runs, the
value is reset to a plain "expr" and is not useful.
"extensions"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds a list of all extension files (both "XS" and non-
xs) installed with the package. It is propagated to _C_o_n_f_i_g_._p_m and is
typically used to test whether a particular extension is available.
"extern_C"
From _C_s_y_m_._U:
"ANSI" C requires "extern" where C++ requires 'extern "C"'. This
variable can be used in Configure to do the right thing.
"extras"
From _E_x_t_r_a_s_._U:
This variable holds a list of extra modules to install.
ff “fflushall” From _f_f_l_u_s_h_a_l_l_._U:
This symbol, if defined, tells that to flush all pending stdio output
one must loop through all the stdio file handles stored in an array
and fflush them. Note that if fflushNULL is defined, fflushall will
not even be probed for and will be left undefined.
"fflushNULL"
From _f_f_l_u_s_h_a_l_l_._U:
This symbol, if defined, tells that fflush("NULL") correctly flushes
all pending stdio output without side effects. In particular, on some
platforms calling fflush("NULL") *still* corrupts "STDIN" if it is a
pipe.
"find"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"firstmakefile"
From _U_n_i_x_._U:
This variable defines the first file searched by make. On unix, it
is makefile (then Makefile). On case-insensitive systems, it might
be something else. This is only used to deal with convoluted make
depend tricks.
"flex"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"fpossize"
From _f_p_o_s_s_i_z_e_._U:
This variable contains the size of a fpostype in bytes.
"fpostype"
From _f_p_o_s_t_y_p_e_._U:
This variable defines Fpos_t to be something like fpos_t, long, uint,
or whatever type is used to declare file positions in libc.
"freetype"
From _m_a_l_l_o_c_s_r_c_._U:
This variable contains the return type of ffrreeee(()). It is usually
void, but occasionally int.
"from"
From _C_r_o_s_s_._U:
This variable contains the command used by Configure to copy files
from the target host. Useful and available only during Perl build.
The string ":" if not cross-compiling.
"full_ar"
From _L_o_c___a_r_._U:
This variable contains the full pathname to "ar", whether or not the
user has specified "portability". This is only used in the
_M_a_k_e_f_i_l_e_._S_H.
"full_csh"
From _d___c_s_h_._U:
This variable contains the full pathname to "csh", whether or not the
user has specified "portability". This is only used in the compiled
C program, and we assume that all systems which can share this
executable will have the same full pathname to _c_s_h_.
"full_sed"
From _L_o_c___s_e_d_._U:
This variable contains the full pathname to "sed", whether or not the
user has specified "portability". This is only used in the compiled
C program, and we assume that all systems which can share this
executable will have the same full pathname to _s_e_d_.
gg “gccansipedantic” From _g_c_c_v_e_r_s_._U:
If "GNU" cc (gcc) is used, this variable will enable (if set) the
-ansi and -pedantic ccflags for building core files (through cflags
script). (See _P_o_r_t_i_n_g_/_p_u_m_p_k_i_n_._p_o_d for full description).
"gccosandvers"
From _g_c_c_v_e_r_s_._U:
If "GNU" cc (gcc) is used, this variable holds the operating system
and version used to compile gcc. It is set to '' if not gcc, or if
nothing useful can be parsed as the os version.
"gccversion"
From _g_c_c_v_e_r_s_._U:
If "GNU" cc (gcc) is used, this variable holds 1 or 2 to indicate
whether the compiler is version 1 or 2. This is used in setting some
of the default cflags. It is set to '' if not gcc.
"getgrent_r_proto"
From _d___g_e_t_g_r_e_n_t___r_._U:
This variable encodes the prototype of getgrent_r. It is zero if
d_getgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getgrent_r is defined.
"getgrgid_r_proto"
From _d___g_e_t_g_r_g_i_d___r_._U:
This variable encodes the prototype of getgrgid_r. It is zero if
d_getgrgid_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getgrgid_r is defined.
"getgrnam_r_proto"
From _d___g_e_t_g_r_n_a_m___r_._U:
This variable encodes the prototype of getgrnam_r. It is zero if
d_getgrnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getgrnam_r is defined.
"gethostbyaddr_r_proto"
From _d___g_e_t_h_o_s_t_b_y_a_d_d_r___r_._U:
This variable encodes the prototype of gethostbyaddr_r. It is zero
if d_gethostbyaddr_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_gethostbyaddr_r is defined.
"gethostbyname_r_proto"
From _d___g_e_t_h_o_s_t_b_y_n_a_m_e___r_._U:
This variable encodes the prototype of gethostbyname_r. It is zero
if d_gethostbyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_gethostbyname_r is defined.
"gethostent_r_proto"
From _d___g_e_t_h_o_s_t_e_n_t___r_._U:
This variable encodes the prototype of gethostent_r. It is zero if
d_gethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_gethostent_r is defined.
"getlogin_r_proto"
From _d___g_e_t_l_o_g_i_n___r_._U:
This variable encodes the prototype of getlogin_r. It is zero if
d_getlogin_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getlogin_r is defined.
"getnetbyaddr_r_proto"
From _d___g_e_t_n_e_t_b_y_a_d_d_r___r_._U:
This variable encodes the prototype of getnetbyaddr_r. It is zero if
d_getnetbyaddr_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_getnetbyaddr_r is defined.
"getnetbyname_r_proto"
From _d___g_e_t_n_e_t_b_y_n_a_m_e___r_._U:
This variable encodes the prototype of getnetbyname_r. It is zero if
d_getnetbyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_getnetbyname_r is defined.
"getnetent_r_proto"
From _d___g_e_t_n_e_t_e_n_t___r_._U:
This variable encodes the prototype of getnetent_r. It is zero if
d_getnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getnetent_r is defined.
"getprotobyname_r_proto"
From _d___g_e_t_p_r_o_t_o_b_y_n_a_m_e___r_._U:
This variable encodes the prototype of getprotobyname_r. It is zero
if d_getprotobyname_r is undef, and one of the
"REENTRANT_PROTO_T_ABC" macros of _r_e_e_n_t_r_._h if d_getprotobyname_r is
defined.
"getprotobynumber_r_proto"
From _d___g_e_t_p_r_o_t_o_b_y_n_u_m_b_e_r___r_._U:
This variable encodes the prototype of getprotobynumber_r. It is
zero if d_getprotobynumber_r is undef, and one of the
"REENTRANT_PROTO_T_ABC" macros of _r_e_e_n_t_r_._h if d_getprotobynumber_r is
defined.
"getprotoent_r_proto"
From _d___g_e_t_p_r_o_t_o_e_n_t___r_._U:
This variable encodes the prototype of getprotoent_r. It is zero if
d_getprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_getprotoent_r is defined.
"getpwent_r_proto"
From _d___g_e_t_p_w_e_n_t___r_._U:
This variable encodes the prototype of getpwent_r. It is zero if
d_getpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getpwent_r is defined.
"getpwnam_r_proto"
From _d___g_e_t_p_w_n_a_m___r_._U:
This variable encodes the prototype of getpwnam_r. It is zero if
d_getpwnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getpwnam_r is defined.
"getpwuid_r_proto"
From _d___g_e_t_p_w_u_i_d___r_._U:
This variable encodes the prototype of getpwuid_r. It is zero if
d_getpwuid_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getpwuid_r is defined.
"getservbyname_r_proto"
From _d___g_e_t_s_e_r_v_b_y_n_a_m_e___r_._U:
This variable encodes the prototype of getservbyname_r. It is zero
if d_getservbyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_getservbyname_r is defined.
"getservbyport_r_proto"
From _d___g_e_t_s_e_r_v_b_y_p_o_r_t___r_._U:
This variable encodes the prototype of getservbyport_r. It is zero
if d_getservbyport_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_getservbyport_r is defined.
"getservent_r_proto"
From _d___g_e_t_s_e_r_v_e_n_t___r_._U:
This variable encodes the prototype of getservent_r. It is zero if
d_getservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_getservent_r is defined.
"getspnam_r_proto"
From _d___g_e_t_s_p_n_a_m___r_._U:
This variable encodes the prototype of getspnam_r. It is zero if
d_getspnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_getspnam_r is defined.
"gidformat"
From _g_i_d_f_._U:
This variable contains the format string used for printing a Gid_t.
"gidsign"
From _g_i_d_s_i_g_n_._U:
This variable contains the signedness of a gidtype. 1 for unsigned,
-1 for signed.
"gidsize"
From _g_i_d_s_i_z_e_._U:
This variable contains the size of a gidtype in bytes.
"gidtype"
From _g_i_d_t_y_p_e_._U:
This variable defines Gid_t to be something like gid_t, int, ushort,
or whatever type is used to declare the return type of ggeettggiidd(()).
Typically, it is the type of group ids in the kernel.
"glibpth"
From _l_i_b_p_t_h_._U:
This variable holds the general path (space-separated) used to find
libraries. It may contain directories that do not exist on this
platform, libpth is the cleaned-up version.
"gmake"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the gmake program. After Configure runs, the
value is reset to a plain "gmake" and is not useful.
"gmtime_r_proto"
From _d___g_m_t_i_m_e___r_._U:
This variable encodes the prototype of gmtime_r. It is zero if
d_gmtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros of
_r_e_e_n_t_r_._h if d_gmtime_r is defined.
"gnulibc_version"
From _d___g_n_u_l_i_b_c_._U:
This variable contains the version number of the "GNU" C library. It
is usually something like _2_._2_._5. It is a plain '' if this is not the
"GNU" C library, or if the version is unknown.
"grep"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the grep program. After Configure runs, the
value is reset to a plain "grep" and is not useful.
"groupcat"
From _n_i_s_._U:
This variable contains a command that produces the text of the
_/_e_t_c_/_g_r_o_u_p file. This is normally "cat _/_e_t_c_/_g_r_o_u_p", but can be
"ypcat group" when "NIS" is used. On some systems, such as os390,
there may be no equivalent command, in which case this variable is
unset.
"groupstype"
From _g_r_o_u_p_s_t_y_p_e_._U:
This variable defines Groups_t to be something like gid_t, int,
ushort, or whatever type is used for the second argument to
ggeettggrroouuppss(()) and sseettggrroouuppss(()). Usually, this is the same as gidtype
(gid_t), but sometimes it isn't.
"gzip"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the gzip program. After Configure runs, the
value is reset to a plain "gzip" and is not useful.
hh “h_fcntl” From _h___f_c_n_t_l_._U:
This is variable gets set in various places to tell i_fcntl that
<fcntl.h> should be included.
"h_sysfile"
From _h___s_y_s_f_i_l_e_._U:
This is variable gets set in various places to tell i_sys_file that
<sys/file.h> should be included.
"hint"
From _O_l_d_c_o_n_f_i_g_._U:
Gives the type of hints used for previous answers. May be one of
"default", "recommended" or "previous".
"hostcat"
From _n_i_s_._U:
This variable contains a command that produces the text of the
_/_e_t_c_/_h_o_s_t_s file. This is normally "cat _/_e_t_c_/_h_o_s_t_s", but can be
"ypcat hosts" when "NIS" is used. On some systems, such as os390,
there may be no equivalent command, in which case this variable is
unset.
"hostgenerate"
From _C_r_o_s_s_._U:
This variable contains the path to a generate_uudmap binary that can
be run on the host "OS" when cross-compiling. Useful and available
only during Perl build. Empty string '' if not cross-compiling.
"hostosname"
From _C_r_o_s_s_._U:
This variable contains the original value of $^O for hostperl when
cross-compiling. This is useful to pick the proper tools when
running build code in the host. Empty string '' if not cross-
compiling.
"hostperl"
From _C_r_o_s_s_._U:
This variable contains the path to a miniperl binary that can be run
on the host "OS" when cross-compiling. Useful and available only
during Perl build. Empty string '' if not cross-compiling.
"html1dir"
From _h_t_m_l_1_d_i_r_._U:
This variable contains the name of the directory in which html source
pages are to be put. This directory is for pages that describe whole
programs, not libraries or modules. It is intended to correspond
roughly to section 1 of the Unix manuals.
"html1direxp"
From _h_t_m_l_1_d_i_r_._U:
This variable is the same as the html1dir variable, but is filename
expanded at configuration time, for convenient use in makefiles.
"html3dir"
From _h_t_m_l_3_d_i_r_._U:
This variable contains the name of the directory in which html source
pages are to be put. This directory is for pages that describe
libraries or modules. It is intended to correspond roughly to
section 3 of the Unix manuals.
"html3direxp"
From _h_t_m_l_3_d_i_r_._U:
This variable is the same as the html3dir variable, but is filename
expanded at configuration time, for convenient use in makefiles.
ii “i16size” From _p_e_r_l_x_v_._U:
This variable is the size of an I16 in bytes.
"i16type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's I16.
"i32size"
From _p_e_r_l_x_v_._U:
This variable is the size of an I32 in bytes.
"i32type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's I32.
"i64size"
From _p_e_r_l_x_v_._U:
This variable is the size of an I64 in bytes.
"i64type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's I64.
"i8size"
From _p_e_r_l_x_v_._U:
This variable is the size of an I8 in bytes.
"i8type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's I8.
"i_arpainet"
From _i___a_r_p_a_i_n_e_t_._U:
This variable conditionally defines the "I_ARPA_INET" symbol, and
indicates whether a C program should include <arpa/inet.h>.
"i_bfd"
From _i___b_f_d_._U:
This variable conditionally defines the "I_BFD" symbol, and indicates
whether a C program can include <bfd.h>.
"i_bsdioctl"
From _i___s_y_s_i_o_c_t_l_._U:
This variable conditionally defines the "I_SYS_BSDIOCTL" symbol,
which indicates to the C program that <sys/bsdioctl.h> exists and
should be included.
"i_crypt"
From _i___c_r_y_p_t_._U:
This variable conditionally defines the "I_CRYPT" symbol, and
indicates whether a C program should include <crypt.h>.
"i_db"
From _i___d_b_._U:
This variable conditionally defines the "I_DB" symbol, and indicates
whether a C program may include Berkeley's "DB" include file <db.h>.
"i_dbm"
From _i___d_b_m_._U:
This variable conditionally defines the "I_DBM" symbol, which
indicates to the C program that <dbm.h> exists and should be
included.
"i_dirent"
From _i___d_i_r_e_n_t_._U:
This variable conditionally defines "I_DIRENT", which indicates to
the C program that it should include <dirent.h>.
"i_dlfcn"
From _i___d_l_f_c_n_._U:
This variable conditionally defines the "I_DLFCN" symbol, which
indicates to the C program that <dlfcn.h> exists and should be
included.
"i_execinfo"
From _i___e_x_e_c_i_n_f_o_._U:
This variable conditionally defines the "I_EXECINFO" symbol, and
indicates whether a C program may include <execinfo.h>, for
bbaacckkttrraaccee(()) support.
"i_fcntl"
From _i___f_c_n_t_l_._U:
This variable controls the value of "I_FCNTL" (which tells the C
program to include <fcntl.h>).
"i_fenv"
From _i___f_e_n_v_._U:
This variable conditionally defines the "I_FENV" symbol, which
indicates to the C program that <fenv.h> exists and should be
included.
"i_fp"
From _i___f_p_._U:
This variable conditionally defines the "I_FP" symbol, and indicates
whether a C program should include <fp.h>.
"i_fp_class"
From _i___f_p___c_l_a_s_s_._U:
This variable conditionally defines the "I_FP_CLASS" symbol, and
indicates whether a C program should include <fp_class.h>.
"i_gdbm"
From _i___g_d_b_m_._U:
This variable conditionally defines the "I_GDBM" symbol, which
indicates to the C program that <gdbm.h> exists and should be
included.
"i_gdbm_ndbm"
From _i___n_d_b_m_._U:
This variable conditionally defines the "I_GDBM_NDBM" symbol, which
indicates to the C program that <gdbm-_n_d_b_m_._h> exists and should be
included. This is the location of the _n_d_b_m_._h compatibility file in
Debian 4.0.
"i_gdbmndbm"
From _i___n_d_b_m_._U:
This variable conditionally defines the "I_GDBMNDBM" symbol, which
indicates to the C program that <gdbm/ndbm.h> exists and should be
included. This was the location of the _n_d_b_m_._h compatibility file in
RedHat 7.1.
"i_grp"
From _i___g_r_p_._U:
This variable conditionally defines the "I_GRP" symbol, and indicates
whether a C program should include <grp.h>.
"i_ieeefp"
From _i___i_e_e_e_f_p_._U:
This variable conditionally defines the "I_IEEEFP" symbol, and
indicates whether a C program should include <ieeefp.h>.
"i_inttypes"
From _i___i_n_t_t_y_p_e_s_._U:
This variable conditionally defines the "I_INTTYPES" symbol, and
indicates whether a C program should include <inttypes.h>.
"i_langinfo"
From _i___l_a_n_g_i_n_f_o_._U:
This variable conditionally defines the "I_LANGINFO" symbol, and
indicates whether a C program should include <langinfo.h>.
"i_libutil"
From _i___l_i_b_u_t_i_l_._U:
This variable conditionally defines the "I_LIBUTIL" symbol, and
indicates whether a C program should include <libutil.h>.
"i_locale"
From _i___l_o_c_a_l_e_._U:
This variable conditionally defines the "I_LOCALE" symbol, and
indicates whether a C program should include <locale.h>.
"i_machcthr"
From _i___m_a_c_h_c_t_h_r_._U:
This variable conditionally defines the "I_MACH_CTHREADS" symbol, and
indicates whether a C program should include <mach/cthreads.h>.
"i_malloc"
From _i___m_a_l_l_o_c_._U:
This variable conditionally defines the "I_MALLOC" symbol, and
indicates whether a C program should include <malloc.h>.
"i_mallocmalloc"
From _i___m_a_l_l_o_c_m_a_l_l_o_c_._U:
This variable conditionally defines the "I_MALLOCMALLOC" symbol, and
indicates whether a C program should include <malloc/malloc.h>.
"i_mntent"
From _i___m_n_t_e_n_t_._U:
This variable conditionally defines the "I_MNTENT" symbol, and
indicates whether a C program should include <mntent.h>.
"i_ndbm"
From _i___n_d_b_m_._U:
This variable conditionally defines the "I_NDBM" symbol, which
indicates to the C program that <ndbm.h> exists and should be
included.
"i_netdb"
From _i___n_e_t_d_b_._U:
This variable conditionally defines the "I_NETDB" symbol, and
indicates whether a C program should include <netdb.h>.
"i_neterrno"
From _i___n_e_t_e_r_r_n_o_._U:
This variable conditionally defines the "I_NET_ERRNO" symbol, which
indicates to the C program that <net/errno.h> exists and should be
included.
"i_netinettcp"
From _i___n_e_t_i_n_e_t_t_c_p_._U:
This variable conditionally defines the "I_NETINET_TCP" symbol, and
indicates whether a C program should include <netinet/tcp.h>.
"i_niin"
From _i___n_i_i_n_._U:
This variable conditionally defines "I_NETINET_IN", which indicates
to the C program that it should include <netinet/in.h>. Otherwise,
you may try <sys/in.h>.
"i_poll"
From _i___p_o_l_l_._U:
This variable conditionally defines the "I_POLL" symbol, and
indicates whether a C program should include <poll.h>.
"i_prot"
From _i___p_r_o_t_._U:
This variable conditionally defines the "I_PROT" symbol, and
indicates whether a C program should include <prot.h>.
"i_pthread"
From _i___p_t_h_r_e_a_d_._U:
This variable conditionally defines the "I_PTHREAD" symbol, and
indicates whether a C program should include <pthread.h>.
"i_pwd"
From _i___p_w_d_._U:
This variable conditionally defines "I_PWD", which indicates to the C
program that it should include <pwd.h>.
"i_quadmath"
From _i___q_u_a_d_m_a_t_h_._U:
This variable conditionally defines "I_QUADMATH", which indicates to
the C program that it should include <quadmath.h>.
"i_rpcsvcdbm"
From _i___d_b_m_._U:
This variable conditionally defines the "I_RPCSVC_DBM" symbol, which
indicates to the C program that <rpcsvc/dbm.h> exists and should be
included. Some System V systems might need this instead of <dbm.h>.
"i_sgtty"
From _i___t_e_r_m_i_o_._U:
This variable conditionally defines the "I_SGTTY" symbol, which
indicates to the C program that it should include <sgtty.h> rather
than <termio.h>.
"i_shadow"
From _i___s_h_a_d_o_w_._U:
This variable conditionally defines the "I_SHADOW" symbol, and
indicates whether a C program should include <shadow.h>.
"i_socks"
From _i___s_o_c_k_s_._U:
This variable conditionally defines the "I_SOCKS" symbol, and
indicates whether a C program should include <socks.h>.
"i_stdbool"
From _i___s_t_d_b_o_o_l_._U:
This variable conditionally defines the "I_STDBOOL" symbol, which
indicates to the C program that <stdbool.h> exists and should be
included.
"i_stdint"
From _i___s_t_d_i_n_t_._U:
This variable conditionally defines the "I_STDINT" symbol, which
indicates to the C program that <stdint.h> exists and should be
included.
"i_stdlib"
From _i___s_t_d_l_i_b_._U:
This variable unconditionally defines the "I_STDLIB" symbol.
"i_sunmath"
From _i___s_u_n_m_a_t_h_._U:
This variable conditionally defines the "I_SUNMATH" symbol, and
indicates whether a C program should include <sunmath.h>.
"i_sysaccess"
From _i___s_y_s_a_c_c_e_s_s_._U:
This variable conditionally defines the "I_SYS_ACCESS" symbol, and
indicates whether a C program should include <sys/access.h>.
"i_sysdir"
From _i___s_y_s_d_i_r_._U:
This variable conditionally defines the "I_SYS_DIR" symbol, and
indicates whether a C program should include <sys/dir.h>.
"i_sysfile"
From _i___s_y_s_f_i_l_e_._U:
This variable conditionally defines the "I_SYS_FILE" symbol, and
indicates whether a C program should include <sys/file.h> to get
"R_OK" and friends.
"i_sysfilio"
From _i___s_y_s_i_o_c_t_l_._U:
This variable conditionally defines the "I_SYS_FILIO" symbol, which
indicates to the C program that <sys/filio.h> exists and should be
included in preference to <sys/ioctl.h>.
"i_sysin"
From _i___n_i_i_n_._U:
This variable conditionally defines "I_SYS_IN", which indicates to
the C program that it should include <sys/in.h> instead of
<netinet/in.h>.
"i_sysioctl"
From _i___s_y_s_i_o_c_t_l_._U:
This variable conditionally defines the "I_SYS_IOCTL" symbol, which
indicates to the C program that <sys/ioctl.h> exists and should be
included.
"i_syslog"
From _i___s_y_s_l_o_g_._U:
This variable conditionally defines the "I_SYSLOG" symbol, and
indicates whether a C program should include <syslog.h>.
"i_sysmman"
From _i___s_y_s_m_m_a_n_._U:
This variable conditionally defines the "I_SYS_MMAN" symbol, and
indicates whether a C program should include <sys/mman.h>.
"i_sysmode"
From _i___s_y_s_m_o_d_e_._U:
This variable conditionally defines the "I_SYSMODE" symbol, and
indicates whether a C program should include <sys/mode.h>.
"i_sysmount"
From _i___s_y_s_m_o_u_n_t_._U:
This variable conditionally defines the "I_SYSMOUNT" symbol, and
indicates whether a C program should include <sys/mount.h>.
"i_sysndir"
From _i___s_y_s_n_d_i_r_._U:
This variable conditionally defines the "I_SYS_NDIR" symbol, and
indicates whether a C program should include <sys/ndir.h>.
"i_sysparam"
From _i___s_y_s_p_a_r_a_m_._U:
This variable conditionally defines the "I_SYS_PARAM" symbol, and
indicates whether a C program should include <sys/param.h>.
"i_syspoll"
From _i___s_y_s_p_o_l_l_._U:
This variable conditionally defines the "I_SYS_POLL" symbol, which
indicates to the C program that it should include <sys/poll.h>.
"i_sysresrc"
From _i___s_y_s_r_e_s_r_c_._U:
This variable conditionally defines the "I_SYS_RESOURCE" symbol, and
indicates whether a C program should include <sys/resource.h>.
"i_syssecrt"
From _i___s_y_s_s_e_c_r_t_._U:
This variable conditionally defines the "I_SYS_SECURITY" symbol, and
indicates whether a C program should include <sys/security.h>.
"i_sysselct"
From _i___s_y_s_s_e_l_c_t_._U:
This variable conditionally defines "I_SYS_SELECT", which indicates
to the C program that it should include <sys/select.h> in order to
get the definition of struct timeval.
"i_syssockio"
From _i___s_y_s_i_o_c_t_l_._U:
This variable conditionally defines "I_SYS_SOCKIO" to indicate to the
C program that socket ioctl codes may be found in <sys/sockio.h>
instead of <sys/ioctl.h>.
"i_sysstat"
From _i___s_y_s_s_t_a_t_._U:
This variable conditionally defines the "I_SYS_STAT" symbol, and
indicates whether a C program should include <sys/stat.h>.
"i_sysstatfs"
From _i___s_y_s_s_t_a_t_f_s_._U:
This variable conditionally defines the "I_SYSSTATFS" symbol, and
indicates whether a C program should include <sys/statfs.h>.
"i_sysstatvfs"
From _i___s_y_s_s_t_a_t_v_f_s_._U:
This variable conditionally defines the "I_SYSSTATVFS" symbol, and
indicates whether a C program should include <sys/statvfs.h>.
"i_systime"
From _i___t_i_m_e_._U:
This variable conditionally defines "I_SYS_TIME", which indicates to
the C program that it should include <sys/time.h>.
"i_systimek"
From _i___t_i_m_e_._U:
This variable conditionally defines "I_SYS_TIME_KERNEL", which
indicates to the C program that it should include <sys/time.h> with
"KERNEL" defined.
"i_systimes"
From _i___s_y_s_t_i_m_e_s_._U:
This variable conditionally defines the "I_SYS_TIMES" symbol, and
indicates whether a C program should include <sys/times.h>.
"i_systypes"
From _i___s_y_s_t_y_p_e_s_._U:
This variable conditionally defines the "I_SYS_TYPES" symbol, and
indicates whether a C program should include <sys/types.h>.
"i_sysuio"
From _i___s_y_s_u_i_o_._U:
This variable conditionally defines the "I_SYSUIO" symbol, and
indicates whether a C program should include <sys/uio.h>.
"i_sysun"
From _i___s_y_s_u_n_._U:
This variable conditionally defines "I_SYS_UN", which indicates to
the C program that it should include <sys/un.h> to get "UNIX" domain
socket definitions.
"i_sysutsname"
From _i___s_y_s_u_t_s_n_a_m_e_._U:
This variable conditionally defines the "I_SYSUTSNAME" symbol, and
indicates whether a C program should include <sys/utsname.h>.
"i_sysvfs"
From _i___s_y_s_v_f_s_._U:
This variable conditionally defines the "I_SYSVFS" symbol, and
indicates whether a C program should include <sys/vfs.h>.
"i_syswait"
From _i___s_y_s_w_a_i_t_._U:
This variable conditionally defines "I_SYS_WAIT", which indicates to
the C program that it should include <sys/wait.h>.
"i_termio"
From _i___t_e_r_m_i_o_._U:
This variable conditionally defines the "I_TERMIO" symbol, which
indicates to the C program that it should include <termio.h> rather
than <sgtty.h>.
"i_termios"
From _i___t_e_r_m_i_o_._U:
This variable conditionally defines the "I_TERMIOS" symbol, which
indicates to the C program that the "POSIX" <termios.h> file is to be
included.
"i_time"
From _i___t_i_m_e_._U:
This variable unconditionally defines "I_TIME", which indicates to
the C program that it should include <time.h>.
"i_unistd"
From _i___u_n_i_s_t_d_._U:
This variable conditionally defines the "I_UNISTD" symbol, and
indicates whether a C program should include <unistd.h>.
"i_ustat"
From _i___u_s_t_a_t_._U:
This variable conditionally defines the "I_USTAT" symbol, and
indicates whether a C program should include <ustat.h>.
"i_utime"
From _i___u_t_i_m_e_._U:
This variable conditionally defines the "I_UTIME" symbol, and
indicates whether a C program should include <utime.h>.
"i_vfork"
From _i___v_f_o_r_k_._U:
This variable conditionally defines the "I_VFORK" symbol, and
indicates whether a C program should include _v_f_o_r_k_._h.
"i_wchar"
From _i___w_c_h_a_r_._U:
This variable conditionally defines the "I_WCHAR" symbol, that
indicates whether a C program may include <wchar.h>.
"i_wctype"
From _i___w_c_t_y_p_e_._U:
This variable conditionally defines the "I_WCTYPE" symbol, that
indicates whether a C program may include <wctype.h>.
"i_xlocale"
From _d___n_e_w_l_o_c_a_l_e_._U:
This symbol, if defined, indicates to the C program that the header
_x_l_o_c_a_l_e_._h is available. See also xlocale_needed.
"ignore_versioned_solibs"
From _l_i_b_s_._U:
This variable should be non-empty if non-versioned shared libraries
(_l_i_b_f_o_o_._s_o_._x_._y) are to be ignored (because they cannot be linked
against).
"inc_version_list"
From _i_n_c___v_e_r_s_i_o_n___l_i_s_t_._U:
This variable specifies the list of subdirectories in over which
_p_e_r_l_._c:iinnccppuusshh(()) and _l_i_b_/_l_i_b_._p_m will automatically search when adding
directories to @"INC". The elements in the list are separated by
spaces. This is only useful if you have a perl library directory
tree structured like the default one. See "INSTALL" for how this
works. The versioned site_perl directory was introduced in 5.005, so
that is the lowest possible value.
This list includes architecture-dependent directories back to version
$api_versionstring (e.g. 5.5.640) and architecture-independent
directories all the way back to 5.005.
"inc_version_list_init"
From _i_n_c___v_e_r_s_i_o_n___l_i_s_t_._U:
This variable holds the same list as inc_version_list, but each item
is enclosed in double quotes and separated by commas, suitable for
use in the "PERL_INC_VERSION_LIST" initialization.
"incpath"
From _u_s_r_i_n_c_._U:
This variable must precede the normal include path to get the right
one, as in _$_i_n_c_p_a_t_h_/_u_s_r_/_i_n_c_l_u_d_e or _$_i_n_c_p_a_t_h_/_u_s_r_/_l_i_b. Value can be ""
or _/_b_s_d_4_3 on mips.
"incpth"
From _l_i_b_p_t_h_._U:
This variable must precede the normal include path to get the right
one, as in _$_i_n_c_p_a_t_h_/_u_s_r_/_i_n_c_l_u_d_e or _$_i_n_c_p_a_t_h_/_u_s_r_/_l_i_b. Value can be ""
or _/_b_s_d_4_3 on mips.
"inews"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"initialinstalllocation"
From _b_i_n_._U:
When userelocatableinc is true, this variable holds the location that
make install should copy the perl binary to, with all the run-time
relocatable paths calculated from this at install time. When used,
it is initialized to the original value of binexp, and then binexp is
set to _._._._/, as the other binaries are found relative to the perl
binary.
"installarchlib"
From _a_r_c_h_l_i_b_._U:
This variable is really the same as archlibexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installbin"
From _b_i_n_._U:
This variable is the same as binexp unless "AFS" is running in which
case the user is explicitly prompted for it. This variable should
always be used in your makefiles for maximum portability.
"installhtml1dir"
From _h_t_m_l_1_d_i_r_._U:
This variable is really the same as html1direxp, unless you are using
a different installprefix. For extra portability, you should only
use this variable within your makefiles.
"installhtml3dir"
From _h_t_m_l_3_d_i_r_._U:
This variable is really the same as html3direxp, unless you are using
a different installprefix. For extra portability, you should only
use this variable within your makefiles.
"installman1dir"
From _m_a_n_1_d_i_r_._U:
This variable is really the same as man1direxp, unless you are using
"AFS" in which case it points to the read/write location whereas
man1direxp only points to the read-only access location. For extra
portability, you should only use this variable within your makefiles.
"installman3dir"
From _m_a_n_3_d_i_r_._U:
This variable is really the same as man3direxp, unless you are using
"AFS" in which case it points to the read/write location whereas
man3direxp only points to the read-only access location. For extra
portability, you should only use this variable within your makefiles.
"installprefix"
From _i_n_s_t_a_l_l_p_r_e_f_i_x_._U:
This variable holds the name of the directory below which "make
install" will install the package. For most users, this is the same
as prefix. However, it is useful for installing the software into a
different (usually temporary) location after which it can be bundled
up and moved somehow to the final location specified by prefix.
"installprefixexp"
From _i_n_s_t_a_l_l_p_r_e_f_i_x_._U:
This variable holds the full absolute path of installprefix with all
_~-expansion done.
"installprivlib"
From _p_r_i_v_l_i_b_._U:
This variable is really the same as privlibexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installscript"
From _s_c_r_i_p_t_d_i_r_._U:
This variable is usually the same as scriptdirexp, unless you are on
a system running "AFS", in which case they may differ slightly. You
should always use this variable within your makefiles for
portability.
"installsitearch"
From _s_i_t_e_a_r_c_h_._U:
This variable is really the same as sitearchexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installsitebin"
From _s_i_t_e_b_i_n_._U:
This variable is usually the same as sitebinexp, unless you are on a
system running "AFS", in which case they may differ slightly. You
should always use this variable within your makefiles for
portability.
"installsitehtml1dir"
From _s_i_t_e_h_t_m_l_1_d_i_r_._U:
This variable is really the same as sitehtml1direxp, unless you are
using "AFS" in which case it points to the read/write location
whereas html1direxp only points to the read-only access location. For
extra portability, you should only use this variable within your
makefiles.
"installsitehtml3dir"
From _s_i_t_e_h_t_m_l_3_d_i_r_._U:
This variable is really the same as sitehtml3direxp, unless you are
using "AFS" in which case it points to the read/write location
whereas html3direxp only points to the read-only access location. For
extra portability, you should only use this variable within your
makefiles.
"installsitelib"
From _s_i_t_e_l_i_b_._U:
This variable is really the same as sitelibexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installsiteman1dir"
From _s_i_t_e_m_a_n_1_d_i_r_._U:
This variable is really the same as siteman1direxp, unless you are
using "AFS" in which case it points to the read/write location
whereas man1direxp only points to the read-only access location. For
extra portability, you should only use this variable within your
makefiles.
"installsiteman3dir"
From _s_i_t_e_m_a_n_3_d_i_r_._U:
This variable is really the same as siteman3direxp, unless you are
using "AFS" in which case it points to the read/write location
whereas man3direxp only points to the read-only access location. For
extra portability, you should only use this variable within your
makefiles.
"installsitescript"
From _s_i_t_e_s_c_r_i_p_t_._U:
This variable is usually the same as sitescriptexp, unless you are on
a system running "AFS", in which case they may differ slightly. You
should always use this variable within your makefiles for
portability.
"installstyle"
From _i_n_s_t_a_l_l_s_t_y_l_e_._U:
This variable describes the "style" of the perl installation. This
is intended to be useful for tools that need to manipulate entire
perl distributions. Perl itself doesn't use this to find its
libraries -- the library directories are stored directly in
_C_o_n_f_i_g_._p_m. Currently, there are only two styles: "lib" and
_l_i_b_/_p_e_r_l_5. The default library locations (e.g. privlib, sitelib) are
either _$_p_r_e_f_i_x_/_l_i_b or _$_p_r_e_f_i_x_/_l_i_b_/_p_e_r_l_5. The former is useful if
$prefix is a directory dedicated to perl (e.g. _/_o_p_t_/_p_e_r_l), while the
latter is useful if $prefix is shared by many packages, e.g. if
$prefix=_/_u_s_r_/_l_o_c_a_l.
Unfortunately, while this "style" variable is used to set defaults
for all three directory hierarchies (core, vendor, and site), there
is no guarantee that the same style is actually appropriate for all
those directories. For example, $prefix might be _/_o_p_t_/_p_e_r_l, but
$siteprefix might be _/_u_s_r_/_l_o_c_a_l. (Perhaps, in retrospect, the "lib"
style should never have been supported, but it did seem like a nice
idea at the time.)
The situation is even less clear for tools such as MakeMaker that can
be used to install additional modules into non-standard places. For
example, if a user intends to install a module into a private
directory (perhaps by setting "PREFIX" on the _M_a_k_e_f_i_l_e_._P_L command
line), then there is no reason to assume that the Configure-time
$installstyle setting will be relevant for that "PREFIX".
This may later be extended to include other information, so be
careful with pattern-matching on the results.
For compatibility with _p_e_r_l_5_._0_0_5 and earlier, the default setting is
based on whether or not $prefix contains the string "perl".
"installusrbinperl"
From _i_n_s_t_u_b_p_e_r_l_._U:
This variable tells whether Perl should be installed also as
_/_u_s_r_/_b_i_n_/_p_e_r_l in addition to _$_i_n_s_t_a_l_l_b_i_n_/_p_e_r_l
"installvendorarch"
From _v_e_n_d_o_r_a_r_c_h_._U:
This variable is really the same as vendorarchexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installvendorbin"
From _v_e_n_d_o_r_b_i_n_._U:
This variable is really the same as vendorbinexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installvendorhtml1dir"
From _v_e_n_d_o_r_h_t_m_l_1_d_i_r_._U:
This variable is really the same as vendorhtml1direxp but may differ
on those systems using "AFS". For extra portability, only this
variable should be used in makefiles.
"installvendorhtml3dir"
From _v_e_n_d_o_r_h_t_m_l_3_d_i_r_._U:
This variable is really the same as vendorhtml3direxp but may differ
on those systems using "AFS". For extra portability, only this
variable should be used in makefiles.
"installvendorlib"
From _v_e_n_d_o_r_l_i_b_._U:
This variable is really the same as vendorlibexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"installvendorman1dir"
From _v_e_n_d_o_r_m_a_n_1_d_i_r_._U:
This variable is really the same as vendorman1direxp but may differ
on those systems using "AFS". For extra portability, only this
variable should be used in makefiles.
"installvendorman3dir"
From _v_e_n_d_o_r_m_a_n_3_d_i_r_._U:
This variable is really the same as vendorman3direxp but may differ
on those systems using "AFS". For extra portability, only this
variable should be used in makefiles.
"installvendorscript"
From _v_e_n_d_o_r_s_c_r_i_p_t_._U:
This variable is really the same as vendorscriptexp but may differ on
those systems using "AFS". For extra portability, only this variable
should be used in makefiles.
"intsize"
From _i_n_t_s_i_z_e_._U:
This variable contains the value of the "INTSIZE" symbol, which
indicates to the C program how many bytes there are in an int.
"issymlink"
From _i_s_s_y_m_l_i_n_k_._U:
This variable holds the test command to test for a symbolic link (if
they are supported). Typical values include "test -h" and "test -L".
"ivdformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"IV" as a signed decimal integer.
"ivsize"
From _p_e_r_l_x_v_._U:
This variable is the size of an "IV" in bytes.
"ivtype"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's "IV".
kk “known_extensions” From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds a list of all extensions (both "XS" and non-xs)
included in the package source distribution. This information is
only really of use during the Perl build, as the list makes no
distinction between extensions which were build and installed, and
those which where not. See "extensions" for the list of extensions
actually built and available.
"ksh"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
ll “ld” From _d_l_s_r_c_._U:
This variable indicates the program to be used to link libraries for
dynamic loading. On some systems, it is "ld". On "ELF" systems, it
should be $cc. Mostly, we'll try to respect the hint file setting.
"ld_can_script"
From _d_l_s_r_c_._U:
This variable shows if the loader accepts scripts in the form of
-Wl,--version-script=_l_d_._s_c_r_i_p_t. This is currently only supported for
"GNU" ld on "ELF" in dynamic loading builds.
"lddlflags"
From _d_l_s_r_c_._U:
This variable contains any special flags that might need to be passed
to $ld to create a shared library suitable for dynamic loading. It
is up to the makefile to use it. For hpux, it should be "-b". For
sunos 4.1, it is empty.
"ldflags"
From _c_c_f_l_a_g_s_._U:
This variable contains any additional C loader flags desired by the
user. It is up to the Makefile to use this.
"ldflags_uselargefiles"
From _u_s_e_l_f_s_._U:
This variable contains the loader flags needed by large file builds
and added to ldflags by hints files.
"ldlibpthname"
From _l_i_b_p_e_r_l_._U:
This variable holds the name of the shared library search path, often
"LD_LIBRARY_PATH". To get an empty string, the hints file must set
this to "none".
"less"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the less program. After Configure runs, the
value is reset to a plain "less" and is not useful.
"lib_ext"
From _U_n_i_x_._U:
This is an old synonym for _a.
"libc"
From _l_i_b_c_._U:
This variable contains the location of the C library.
"libperl"
From _l_i_b_p_e_r_l_._U:
The perl executable is obtained by linking _p_e_r_l_m_a_i_n_._c with libperl,
any static extensions (usually just DynaLoader), and any other
libraries needed on this system. libperl is usually _l_i_b_p_e_r_l_._a, but
can also be _l_i_b_p_e_r_l_._s_o_._x_x_x if the user wishes to build a perl
executable with a shared library.
"libpth"
From _l_i_b_p_t_h_._U:
This variable holds the general path (space-separated) used to find
libraries. It is intended to be used by other units.
"libs"
From _l_i_b_s_._U:
This variable holds the additional libraries we want to use. It is
up to the Makefile to deal with it. The list can be empty.
"libsdirs"
From _l_i_b_s_._U:
This variable holds the directory names aka dirnames of the libraries
we found and accepted, duplicates are removed.
"libsfiles"
From _l_i_b_s_._U:
This variable holds the filenames aka basenames of the libraries we
found and accepted.
"libsfound"
From _l_i_b_s_._U:
This variable holds the full pathnames of the libraries we found and
accepted.
"libspath"
From _l_i_b_s_._U:
This variable holds the directory names probed for libraries.
"libswanted"
From _M_y_i_n_i_t_._U:
This variable holds a list of all the libraries we want to search.
The order is chosen to pick up the c library ahead of ucb or bsd
libraries for SVR4.
"libswanted_uselargefiles"
From _u_s_e_l_f_s_._U:
This variable contains the libraries needed by large file builds and
added to ldflags by hints files. It is a space separated list of the
library names without the "lib" prefix or any suffix, just like
_l_i_b_s_w_a_n_t_e_d_..
"line"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"lint"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"lkflags"
From _c_c_f_l_a_g_s_._U:
This variable contains any additional C partial linker flags desired
by the user. It is up to the Makefile to use this.
"ln"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the ln program. After Configure runs, the value
is reset to a plain "ln" and is not useful.
"lns"
From _l_n_s_._U:
This variable holds the name of the command to make symbolic links
(if they are supported). It can be used in the Makefile. It is
either "ln -s" or "ln"
"localtime_r_proto"
From _d___l_o_c_a_l_t_i_m_e___r_._U:
This variable encodes the prototype of localtime_r. It is zero if
d_localtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_localtime_r is defined.
"locincpth"
From _c_c_f_l_a_g_s_._U:
This variable contains a list of additional directories to be
searched by the compiler. The appropriate "-I" directives will be
added to ccflags. This is intended to simplify setting local
directories from the Configure command line. It's not much, but it
parallels the loclibpth stuff in _l_i_b_p_t_h_._U.
"loclibpth"
From _l_i_b_p_t_h_._U:
This variable holds the paths (space-separated) used to find local
libraries. It is prepended to libpth, and is intended to be easily
set from the command line.
"longdblinfbytes"
From _i_n_f_n_a_n_._U:
This variable contains comma-separated list of hexadecimal bytes for
the long double precision infinity.
"longdblkind"
From _d___l_o_n_g_d_b_l_._U:
This variable, if defined, encodes the type of a long double: 0 =
double, 1 = "IEEE" 754 128-bit little endian, 2 = "IEEE" 754 128-bit
big endian, 3 = x86 80-bit little endian, 4 = x86 80-bit big endian,
5 = double-double 128-bit little endian, 6 = double-double 128-bit
big endian, 7 = 128-bit mixed-endian double-double (64-bit LEs in
"BE"), 8 = 128-bit mixed-endian double-double (64-bit BEs in "LE"), 9
= 128-bit "PDP"-style mixed-endian long doubles, -1 = unknown format.
"longdblmantbits"
From _m_a_n_t_b_i_t_s_._U:
This symbol, if defined, tells how many mantissa bits there are in
long double precision floating point format. Note that this can be
"LDBL_MANT_DIG" minus one, since "LDBL_MANT_DIG" can include the
"IEEE" 754 implicit bit. The common x86-style 80-bit long double
does not have an implicit bit.
"longdblnanbytes"
From _i_n_f_n_a_n_._U:
This variable contains comma-separated list of hexadecimal bytes for
the long double precision not-a-number.
"longdblsize"
From _d___l_o_n_g_d_b_l_._U:
This variable contains the value of the "LONG_DOUBLESIZE" symbol,
which indicates to the C program how many bytes there are in a long
double, if this system supports long doubles. Note that this is
sizeof(long double), which may include unused bytes.
"longlongsize"
From _d___l_o_n_g_l_o_n_g_._U:
This variable contains the value of the "LONGLONGSIZE" symbol, which
indicates to the C program how many bytes there are in a long long,
if this system supports long long.
"longsize"
From _i_n_t_s_i_z_e_._U:
This variable contains the value of the "LONGSIZE" symbol, which
indicates to the C program how many bytes there are in a long.
"lp"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"lpr"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"ls"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the ls program. After Configure runs, the value
is reset to a plain "ls" and is not useful.
"lseeksize"
From _l_s_e_e_k_t_y_p_e_._U:
This variable defines lseektype to be something like off_t, long, or
whatever type is used to declare lseek offset's type in the kernel
(which also appears to be lseek's return type).
"lseektype"
From _l_s_e_e_k_t_y_p_e_._U:
This variable defines lseektype to be something like off_t, long, or
whatever type is used to declare lseek offset's type in the kernel
(which also appears to be lseek's return type).
mm “mail” From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"mailx"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"make"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the make program. After Configure runs, the
value is reset to a plain "make" and is not useful.
"make_set_make"
From _m_a_k_e_._U:
Some versions of "make" set the variable "MAKE". Others do not.
This variable contains the string to be included in _M_a_k_e_f_i_l_e_._S_H so
that "MAKE" is set if needed, and not if not needed. Possible values
are:
make_set_make="#" # If your make program handles this for you,
make_set_make="MAKE=$make" # if it doesn't.
This uses a comment character so that we can distinguish a "set"
value (from a previous _c_o_n_f_i_g_._s_h or Configure "-D" option) from an
uncomputed value.
"mallocobj"
From _m_a_l_l_o_c_s_r_c_._U:
This variable contains the name of the _m_a_l_l_o_c_._o that this package
generates, if that _m_a_l_l_o_c_._o is preferred over the system malloc.
Otherwise the value is null. This variable is intended for
generating Makefiles. See mallocsrc.
"mallocsrc"
From _m_a_l_l_o_c_s_r_c_._U:
This variable contains the name of the _m_a_l_l_o_c_._c that comes with the
package, if that _m_a_l_l_o_c_._c is preferred over the system malloc.
Otherwise the value is null. This variable is intended for
generating Makefiles.
"malloctype"
From _m_a_l_l_o_c_s_r_c_._U:
This variable contains the kind of ptr returned by malloc and
realloc.
"man1dir"
From _m_a_n_1_d_i_r_._U:
This variable contains the name of the directory in which manual
source pages are to be put. It is the responsibility of the
_M_a_k_e_f_i_l_e_._S_H to get the value of this into the proper command. You
must be prepared to do the _~_n_a_m_e expansion yourself.
"man1direxp"
From _m_a_n_1_d_i_r_._U:
This variable is the same as the man1dir variable, but is filename
expanded at configuration time, for convenient use in makefiles.
"man1ext"
From _m_a_n_1_d_i_r_._U:
This variable contains the extension that the manual page should
have: one of "n", "l", or 1. The Makefile must supply the _.. See
man1dir.
"man3dir"
From _m_a_n_3_d_i_r_._U:
This variable contains the name of the directory in which manual
source pages are to be put. It is the responsibility of the
_M_a_k_e_f_i_l_e_._S_H to get the value of this into the proper command. You
must be prepared to do the _~_n_a_m_e expansion yourself.
"man3direxp"
From _m_a_n_3_d_i_r_._U:
This variable is the same as the man3dir variable, but is filename
expanded at configuration time, for convenient use in makefiles.
"man3ext"
From _m_a_n_3_d_i_r_._U:
This variable contains the extension that the manual page should
have: one of "n", "l", or 3. The Makefile must supply the _.. See
man3dir.
"mips_type"
From _u_s_r_i_n_c_._U:
This variable holds the environment type for the mips system.
Possible values are "BSD 4.3" and "System V".
"mistrustnm"
From _C_s_y_m_._U:
This variable can be used to establish a fallthrough for the cases
where nm fails to find a symbol. If usenm is false or usenm is true
and mistrustnm is false, this variable has no effect. If usenm is
true and mistrustnm is "compile", a test program will be compiled to
try to find any symbol that can't be located via nm lookup. If
mistrustnm is "run", the test program will be run as well as being
compiled.
"mkdir"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the mkdir program. After Configure runs, the
value is reset to a plain "mkdir" and is not useful.
"mmaptype"
From _d___m_m_a_p_._U:
This symbol contains the type of pointer returned by mmmmaapp(()) (and
simultaneously the type of the first argument). It can be "void *"
or "caddr_t".
"modetype"
From _m_o_d_e_t_y_p_e_._U:
This variable defines modetype to be something like mode_t, int,
unsigned short, or whatever type is used to declare file modes for
system calls.
"more"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the more program. After Configure runs, the
value is reset to a plain "more" and is not useful.
"multiarch"
From _m_u_l_t_i_a_r_c_h_._U:
This variable conditionally defines the "MULTIARCH" symbol which
signifies the presence of multiplatform files. This is normally set
by hints files.
"mv"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"myarchname"
From _a_r_c_h_n_a_m_e_._U:
This variable holds the architecture name computed by Configure in a
previous run. It is not intended to be perused by any user and should
never be set in a hint file.
"mydomain"
From _m_y_h_o_s_t_n_a_m_e_._U:
This variable contains the eventual value of the "MYDOMAIN" symbol,
which is the domain of the host the program is going to run on. The
domain must be appended to myhostname to form a complete host name.
The dot comes with mydomain, and need not be supplied by the program.
"myhostname"
From _m_y_h_o_s_t_n_a_m_e_._U:
This variable contains the eventual value of the "MYHOSTNAME" symbol,
which is the name of the host the program is going to run on. The
domain is not kept with hostname, but must be gotten from mydomain.
The dot comes with mydomain, and need not be supplied by the program.
"myuname"
From _O_l_d_c_o_n_f_i_g_._U:
The output of "uname -a" if available, otherwise the hostname. The
whole thing is then lower-cased and slashes and single quotes are
removed.
nn “n” From _n_._U:
This variable contains the "-n" flag if that is what causes the echo
command to suppress newline. Otherwise it is null. Correct usage is
$echo $n "prompt for a question: $c".
"need_va_copy"
From _n_e_e_d___v_a___c_o_p_y_._U:
This symbol, if defined, indicates that the system stores the
variable argument list datatype, va_list, in a format that cannot be
copied by simple assignment, so that some other means must be used
when copying is required. As such systems vary in their provision
(or non-provision) of copying mechanisms, _h_a_n_d_y_._h defines a platform-
"independent" macro, Perl_va_copy(src, dst), to do the job.
"netdb_hlen_type"
From _n_e_t_d_b_t_y_p_e_._U:
This variable holds the type used for the 2nd argument to
ggeetthhoossttbbyyaaddddrr(()). Usually, this is int or size_t or unsigned. This
is only useful if you have ggeetthhoossttbbyyaaddddrr(()), naturally.
"netdb_host_type"
From _n_e_t_d_b_t_y_p_e_._U:
This variable holds the type used for the 1st argument to
ggeetthhoossttbbyyaaddddrr(()). Usually, this is char * or void *, possibly with
or without a const prefix. This is only useful if you have
ggeetthhoossttbbyyaaddddrr(()), naturally.
"netdb_name_type"
From _n_e_t_d_b_t_y_p_e_._U:
This variable holds the type used for the argument to
ggeetthhoossttbbyynnaammee(()). Usually, this is char * or const char *. This is
only useful if you have ggeetthhoossttbbyynnaammee(()), naturally.
"netdb_net_type"
From _n_e_t_d_b_t_y_p_e_._U:
This variable holds the type used for the 1st argument to
ggeettnneettbbyyaaddddrr(()). Usually, this is int or long. This is only useful
if you have ggeettnneettbbyyaaddddrr(()), naturally.
"nm"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the nm program. After Configure runs, the value
is reset to a plain "nm" and is not useful.
"nm_opt"
From _u_s_e_n_m_._U:
This variable holds the options that may be necessary for nm.
"nm_so_opt"
From _u_s_e_n_m_._U:
This variable holds the options that may be necessary for nm to work
on a shared library but that can not be used on an archive library.
Currently, this is only used by Linux, where nm --dynamic is
*required* to get symbols from an "ELF" library which has been
stripped, but nm --dynamic is *fatal* on an archive library. Maybe
Linux should just always set usenm=false.
"nonxs_ext"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds a list of all non-xs extensions built and
installed by the package. By default, all non-xs extensions
distributed will be built, with the exception of platform-specific
extensions (currently only one "VMS" specific extension).
"nroff"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the nroff program. After Configure runs, the
value is reset to a plain "nroff" and is not useful.
"nv_overflows_integers_at"
From _p_e_r_l_x_v_._U:
This variable gives the largest integer value that NVs can hold as a
constant floating point expression. If it could not be determined,
it holds the value 0.
"nv_preserves_uv_bits"
From _p_e_r_l_x_v_._U:
This variable indicates how many of bits type uvtype a variable
nvtype can preserve.
"nveformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"NV" using %e-ish floating point format.
"nvEUformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"NV" using %E-ish floating point format.
"nvfformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"NV" using %f-ish floating point format.
"nvFUformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"NV" using %F-ish floating point format.
"nvgformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"NV" using %g-ish floating point format.
"nvGUformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"NV" using %G-ish floating point format.
"nvmantbits"
From _m_a_n_t_b_i_t_s_._U:
This variable tells how many bits the mantissa of a Perl "NV" has,
not including the possible implicit bit.
"nvsize"
From _p_e_r_l_x_v_._U:
This variable is the size of a Perl "NV" in bytes. Note that some
floating point formats have unused bytes.
"nvtype"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's "NV".
oo “o_nonblock” From _n_b_l_o_c_k___i_o_._U:
This variable bears the symbol value to be used during ooppeenn(()) or
ffccnnttll(()) to turn on non-blocking I/O for a file descriptor. If you
wish to switch between blocking and non-blocking, you may try
ioctl("FIOSNBIO") instead, but that is only supported by some
devices.
"obj_ext"
From _U_n_i_x_._U:
This is an old synonym for _o.
"old_pthread_create_joinable"
From _d___p_t_h_r_a_t_t_r_j_._U:
This variable defines the constant to use for creating joinable (aka
undetached) pthreads. Unused if _p_t_h_r_e_a_d_._h defines
"PTHREAD_CREATE_JOINABLE". If used, possible values are
"PTHREAD_CREATE_UNDETACHED" and "__UNDETACHED".
"optimize"
From _c_c_f_l_a_g_s_._U:
This variable contains any _o_p_t_i_m_i_z_e_r_/_d_e_b_u_g_g_e_r flag that should be
used. It is up to the Makefile to use it.
"orderlib"
From _o_r_d_e_r_l_i_b_._U:
This variable is "true" if the components of libraries must be
ordered (with `lorder $* | tsort`) before placing them in an archive.
Set to "false" if ranlib or ar can generate random libraries.
"osname"
From _O_l_d_c_o_n_f_i_g_._U:
This variable contains the operating system name (e.g. sunos,
solaris, hpux, etc.). It can be useful later on for setting
defaults. Any spaces are replaced with underscores. It is set to a
null string if we can't figure it out.
"osvers"
From _O_l_d_c_o_n_f_i_g_._U:
This variable contains the operating system version (e.g. 4.1.3,
5.2, etc.). It is primarily used for helping select an appropriate
hints file, but might be useful elsewhere for setting defaults. It
is set to '' if we can't figure it out. We try to be flexible about
how much of the version number to keep, e.g. if 4.1.1, 4.1.2, and
4.1.3 are essentially the same for this package, hints files might
just be _o_s___4_._0 or _o_s___4_._1, etc., not keeping separate files for each
little release.
"otherlibdirs"
From _o_t_h_e_r_l_i_b_d_i_r_s_._U:
This variable contains a colon-separated set of paths for the perl
binary to search for additional library files or modules. These
directories will be tacked to the end of @"INC". Perl will
automatically search below each path for version- and architecture-
specific directories. See inc_version_list for more details. A
value of " " means "none" and is used to preserve this value for the
next run through Configure.
pp “package” From _p_a_c_k_a_g_e_._U:
This variable contains the name of the package being constructed. It
is primarily intended for the use of later Configure units.
"pager"
From _p_a_g_e_r_._U:
This variable contains the name of the preferred pager on the system.
Usual values are (the full pathnames of) more, less, pg, or cat.
"passcat"
From _n_i_s_._U:
This variable contains a command that produces the text of the
_/_e_t_c_/_p_a_s_s_w_d file. This is normally "cat _/_e_t_c_/_p_a_s_s_w_d", but can be
"ypcat passwd" when "NIS" is used. On some systems, such as os390,
there may be no equivalent command, in which case this variable is
unset.
"patchlevel"
From _p_a_t_c_h_l_e_v_e_l_._U:
The patchlevel level of this package. The value of patchlevel comes
from the _p_a_t_c_h_l_e_v_e_l_._h file. In a version number such as 5.6.1, this
is the 6. In _p_a_t_c_h_l_e_v_e_l_._h, this is referred to as "PERL_VERSION".
"path_sep"
From _U_n_i_x_._U:
This is an old synonym for p_ in _H_e_a_d_._U, the character used to
separate elements in the command shell search "PATH".
"perl"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the perl program. After Configure runs, the
value is reset to a plain "perl" and is not useful.
"perl5"
From _p_e_r_l_5_._U:
This variable contains the full path (if any) to a previously
installed _p_e_r_l_5_._0_0_5 or later suitable for running the script to
determine inc_version_list.
PP #
“PERL_API_REVISION” #
From _p_a_t_c_h_l_e_v_e_l_._h:
This number describes the earliest compatible "PERL_REVISION" of Perl
("compatibility" here being defined as sufficient _b_i_n_a_r_y_/_"_A_P_I_"
compatibility to run "XS" code built with the older version).
Normally this does not change across maintenance releases. Please
read the comment in _p_a_t_c_h_l_e_v_e_l_._h.
“PERL_API_SUBVERSION” #
From _p_a_t_c_h_l_e_v_e_l_._h:
This number describes the earliest compatible "PERL_SUBVERSION" of
Perl ("compatibility" here being defined as sufficient _b_i_n_a_r_y_/_"_A_P_I_"
compatibility to run "XS" code built with the older version).
Normally this does not change across maintenance releases. Please
read the comment in _p_a_t_c_h_l_e_v_e_l_._h.
“PERL_API_VERSION” #
From _p_a_t_c_h_l_e_v_e_l_._h:
This number describes the earliest compatible "PERL_VERSION" of Perl
("compatibility" here being defined as sufficient _b_i_n_a_r_y_/_"_A_P_I_"
compatibility to run "XS" code built with the older version).
Normally this does not change across maintenance releases. Please
read the comment in _p_a_t_c_h_l_e_v_e_l_._h.
“PERL_CONFIG_SH” #
From _O_l_d_s_y_m_s_._U:
This is set to "true" in _c_o_n_f_i_g_._s_h so that a shell script sourcing
_c_o_n_f_i_g_._s_h can tell if it has been sourced already.
“PERL_PATCHLEVEL” #
From _O_l_d_s_y_m_s_._U:
This symbol reflects the patchlevel, if available. Will usually come
from the _._p_a_t_c_h file, which is available when the perl source tree
was fetched with rsync.
"perl_patchlevel"
From _p_a_t_c_h_l_e_v_e_l_._U:
This is the Perl patch level, a numeric change identifier, as defined
by whichever source code maintenance system is used to maintain the
patches; currently Perforce. It does not correlate with the Perl
version numbers or the maintenance versus development dichotomy
except by also being increasing.
“PERL_REVISION” #
From _O_l_d_s_y_m_s_._U:
In a Perl version number such as 5.6.2, this is the 5. This value is
manually set in _p_a_t_c_h_l_e_v_e_l_._h
"perl_static_inline"
From _d___s_t_a_t_i_c___i_n_l_i_n_e_._U:
This variable defines the "PERL_STATIC_INLINE" symbol to the best-
guess incantation to use for static inline functions. Possibilities
include static inline (c99) static __inline__ (gcc -ansi)
static __inline ("MSVC") static _inline (older "MSVC")
static (c89 compilers)
“PERL_SUBVERSION” #
From _O_l_d_s_y_m_s_._U:
In a Perl version number such as 5.6.2, this is the 2. Values
greater than 50 represent potentially unstable development
subversions. This value is manually set in _p_a_t_c_h_l_e_v_e_l_._h
"perl_thread_local"
From _d___t_h_r_e_a_d___l_o_c_a_l_._U:
This variable gives the value for the "PERL_THREAD_LOCAL" symbol
(when defined), which gives a linkage specification for thread-local
storage.
“PERL_VERSION” #
From _O_l_d_s_y_m_s_._U:
In a Perl version number such as 5.6.2, this is the 6. This value is
manually set in _p_a_t_c_h_l_e_v_e_l_._h
"perladmin"
From _p_e_r_l_a_d_m_i_n_._U:
Electronic mail address of the perl5 administrator.
"perllibs"
From _E_n_d_._U:
The list of libraries needed by Perl only (any libraries needed by
extensions only will by dropped, if using dynamic loading).
"perlpath"
From _p_e_r_l_p_a_t_h_._U:
This variable contains the eventual value of the "PERLPATH" symbol,
which contains the name of the perl interpreter to be used in shell
scripts and in the "eval "exec"" idiom. This variable is not
necessarily the pathname of the file containing the perl interpreter;
you must append the executable extension (_exe) if it is not already
present. Note that Perl code that runs during the Perl build process
cannot reference this variable, as Perl may not have been installed,
or even if installed, may be a different version of Perl.
"pg"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the pg program. After Configure runs, the value
is reset to a plain "pg" and is not useful.
"phostname"
From _m_y_h_o_s_t_n_a_m_e_._U:
This variable contains the eventual value of the "PHOSTNAME" symbol,
which is a command that can be fed to ppooppeenn(()) to get the host name.
The program should probably not presume that the domain is or isn't
there already.
"pidtype"
From _p_i_d_t_y_p_e_._U:
This variable defines "PIDTYPE" to be something like pid_t, int,
ushort, or whatever type is used to declare process ids in the
kernel.
"plibpth"
From _l_i_b_p_t_h_._U:
Holds the private path used by Configure to find out the libraries.
Its value is prepend to libpth. This variable takes care of special
machines, like the mips. Usually, it should be empty.
"pmake"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"pr"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"prefix"
From _p_r_e_f_i_x_._U:
This variable holds the name of the directory below which the user
will install the package. Usually, this is _/_u_s_r_/_l_o_c_a_l, and
executables go in _/_u_s_r_/_l_o_c_a_l_/_b_i_n, library stuff in _/_u_s_r_/_l_o_c_a_l_/_l_i_b,
man pages in _/_u_s_r_/_l_o_c_a_l_/_m_a_n, etc. It is only used to set defaults
for things in _b_i_n_._U, _m_a_n_s_r_c_._U, _p_r_i_v_l_i_b_._U, or _s_c_r_i_p_t_d_i_r_._U.
"prefixexp"
From _p_r_e_f_i_x_._U:
This variable holds the full absolute path of the directory below
which the user will install the package. Derived from prefix.
"privlib"
From _p_r_i_v_l_i_b_._U:
This variable contains the eventual value of the "PRIVLIB" symbol,
which is the name of the private library for this package. It may
have a _~ on the front. It is up to the makefile to eventually create
this directory while performing installation (with _~ substitution).
"privlibexp"
From _p_r_i_v_l_i_b_._U:
This variable is the _~_n_a_m_e expanded version of privlib, so that you
may use it directly in Makefiles or shell scripts.
"procselfexe"
From _d___p_r_o_c_s_e_l_f_e_x_e_._U:
If d_procselfexe is defined, $procselfexe is the filename of the
symbolic link pointing to the absolute pathname of the executing
program.
"ptrsize"
From _p_t_r_s_i_z_e_._U:
This variable contains the value of the "PTRSIZE" symbol, which
indicates to the C program how many bytes there are in a pointer.
qq “quadkind” From _q_u_a_d_t_y_p_e_._U:
This variable, if defined, encodes the type of a quad: 1 = int, 2 =
long, 3 = long long, 4 = int64_t.
"quadtype"
From _q_u_a_d_t_y_p_e_._U:
This variable defines Quad_t to be something like long, int, long
long, int64_t, or whatever type is used for 64-bit integers.
rr “randbits” From _r_a_n_d_f_u_n_c_._U:
Indicates how many bits are produced by the function used to generate
normalized random numbers.
"randfunc"
From _r_a_n_d_f_u_n_c_._U:
Indicates the name of the random number function to use. Values
include drand48, random, and rand. In C programs, the "Drand01" macro
is defined to generate uniformly distributed random numbers over the
range [0., 1.[ (see drand01 and nrand).
"random_r_proto"
From _d___r_a_n_d_o_m___r_._U:
This variable encodes the prototype of random_r. It is zero if
d_random_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros of
_r_e_e_n_t_r_._h if d_random_r is defined.
"randseedtype"
From _r_a_n_d_f_u_n_c_._U:
Indicates the type of the argument of the seedfunc.
"ranlib"
From _o_r_d_e_r_l_i_b_._U:
This variable is set to the pathname of the ranlib program, if it is
needed to generate random libraries. Set to ":" if ar can generate
random libraries or if random libraries are not supported
"rd_nodata"
From _n_b_l_o_c_k___i_o_._U:
This variable holds the return code from rreeaadd(()) when no data is
present. It should be -1, but some systems return 0 when "O_NDELAY"
is used, which is a shame because you cannot make the difference
between no data and an _E_O_F_.. Sigh!
"readdir64_r_proto"
From _d___r_e_a_d_d_i_r_6_4___r_._U:
This variable encodes the prototype of readdir64_r. It is zero if
d_readdir64_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_readdir64_r is defined.
"readdir_r_proto"
From _d___r_e_a_d_d_i_r___r_._U:
This variable encodes the prototype of readdir_r. It is zero if
d_readdir_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_readdir_r is defined.
"revision"
From _p_a_t_c_h_l_e_v_e_l_._U:
The value of revision comes from the _p_a_t_c_h_l_e_v_e_l_._h file. In a version
number such as 5.6.1, this is the 5. In _p_a_t_c_h_l_e_v_e_l_._h, this is
referred to as "PERL_REVISION".
"rm"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the rm program. After Configure runs, the value
is reset to a plain "rm" and is not useful.
"rm_try"
From _U_n_i_x_._U:
This is a cleanup variable for try test programs. Internal Configure
use only.
"rmail"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"run"
From _C_r_o_s_s_._U:
This variable contains the command used by Configure to copy and
execute a cross-compiled executable in the target host. Useful and
available only during Perl build. Empty string '' if not cross-
compiling.
"runnm"
From _u_s_e_n_m_._U:
This variable contains "true" or "false" depending whether the nm
extraction should be performed or not, according to the value of
usenm and the flags on the Configure command line.
ss “sched_yield” From _d___p_t_h_r_e_a_d___y_._U:
This variable defines the way to yield the execution of the current
thread.
"scriptdir"
From _s_c_r_i_p_t_d_i_r_._U:
This variable holds the name of the directory in which the user wants
to put publicly scripts for the package in question. It is either
the same directory as for binaries, or a special one that can be
mounted across different architectures, like _/_u_s_r_/_s_h_a_r_e. Programs
must be prepared to deal with _~_n_a_m_e expansion.
"scriptdirexp"
From _s_c_r_i_p_t_d_i_r_._U:
This variable is the same as scriptdir, but is filename expanded at
configuration time, for programs not wanting to bother with it.
"sed"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the sed program. After Configure runs, the
value is reset to a plain "sed" and is not useful.
"seedfunc"
From _r_a_n_d_f_u_n_c_._U:
Indicates the random number generating seed function. Values include
srand48, srandom, and srand.
"selectminbits"
From _s_e_l_e_c_t_m_i_n_b_i_t_s_._U:
This variable holds the minimum number of bits operated by select.
That is, if you do select(n, ...), how many bits at least will be
cleared in the masks if some activity is detected. Usually this is
either n or 32*ceil(_n_/_3_2), especially many little-endians do the
latter. This is only useful if you have sseelleecctt(()), naturally.
"selecttype"
From _s_e_l_e_c_t_t_y_p_e_._U:
This variable holds the type used for the 2nd, 3rd, and 4th arguments
to select. Usually, this is "fd_set *", if "HAS_FD_SET" is defined,
and "int *" otherwise. This is only useful if you have sseelleecctt(()),
naturally.
"sendmail"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"setgrent_r_proto"
From _d___s_e_t_g_r_e_n_t___r_._U:
This variable encodes the prototype of setgrent_r. It is zero if
d_setgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_setgrent_r is defined.
"sethostent_r_proto"
From _d___s_e_t_h_o_s_t_e_n_t___r_._U:
This variable encodes the prototype of sethostent_r. It is zero if
d_sethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_sethostent_r is defined.
"setlocale_r_proto"
From _d___s_e_t_l_o_c_a_l_e___r_._U:
This variable encodes the prototype of setlocale_r. It is zero if
d_setlocale_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_setlocale_r is defined.
"setnetent_r_proto"
From _d___s_e_t_n_e_t_e_n_t___r_._U:
This variable encodes the prototype of setnetent_r. It is zero if
d_setnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_setnetent_r is defined.
"setprotoent_r_proto"
From _d___s_e_t_p_r_o_t_o_e_n_t___r_._U:
This variable encodes the prototype of setprotoent_r. It is zero if
d_setprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_setprotoent_r is defined.
"setpwent_r_proto"
From _d___s_e_t_p_w_e_n_t___r_._U:
This variable encodes the prototype of setpwent_r. It is zero if
d_setpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_setpwent_r is defined.
"setservent_r_proto"
From _d___s_e_t_s_e_r_v_e_n_t___r_._U:
This variable encodes the prototype of setservent_r. It is zero if
d_setservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
macros of _r_e_e_n_t_r_._h if d_setservent_r is defined.
"sGMTIME_max"
From _t_i_m_e___s_i_z_e_._U:
This variable defines the maximum value of the time_t offset that the
system function gmtime () accepts
"sGMTIME_min"
From _t_i_m_e___s_i_z_e_._U:
This variable defines the minimum value of the time_t offset that the
system function gmtime () accepts
"sh"
From _s_h_._U:
This variable contains the full pathname of the shell used on this
system to execute Bourne shell scripts. Usually, this will be
_/_b_i_n_/_s_h, though it's possible that some systems will have _/_b_i_n_/_k_s_h,
_/_b_i_n_/_p_d_k_s_h, _/_b_i_n_/_a_s_h, _/_b_i_n_/_b_a_s_h, or even something such as
D:_/_b_i_n_/_s_h_._e_x_e. This unit comes before _O_p_t_i_o_n_s_._U, so you can't set sh
with a "-D" option, though you can override this (and startsh) with
"-O -Dsh=_/_b_i_n_/_w_h_a_t_e_v_e_r -Dstartsh=whatever"
"shar"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"sharpbang"
From _s_p_i_t_s_h_e_l_l_._U:
This variable contains the string #! if this system supports that
construct.
"shmattype"
From _d___s_h_m_a_t_._U:
This symbol contains the type of pointer returned by sshhmmaatt(()). It can
be "void *" or "char *".
"shortsize"
From _i_n_t_s_i_z_e_._U:
This variable contains the value of the "SHORTSIZE" symbol which
indicates to the C program how many bytes there are in a short.
"shrpenv"
From _l_i_b_p_e_r_l_._U:
If the user builds a shared _l_i_b_p_e_r_l_._s_o, then we need to tell the
"perl" executable where it will be able to find the installed
_l_i_b_p_e_r_l_._s_o. One way to do this on some systems is to set the
environment variable "LD_RUN_PATH" to the directory that will be the
final location of the shared _l_i_b_p_e_r_l_._s_o. The makefile can use this
with something like $shrpenv $("CC") -o perl _p_e_r_l_m_a_i_n_._o $libperl
$libs Typical values are shrpenv="env
"LD_RUN_PATH"=_$_a_r_c_h_l_i_b_e_x_p_/_"_C_O_R_E_"" or shrpenv='' See the main perl
_M_a_k_e_f_i_l_e_._S_H for actual working usage.
Alternatively, we might be able to use a command line option such as
-R _$_a_r_c_h_l_i_b_e_x_p_/_"_C_O_R_E_" (Solaris) or -Wl,-rpath _$_a_r_c_h_l_i_b_e_x_p_/_"_C_O_R_E_"
(Linux).
"shsharp"
From _s_p_i_t_s_h_e_l_l_._U:
This variable tells further Configure units whether your sh can
handle # comments.
"sig_count"
From _s_i_g___n_a_m_e_._U:
This variable holds a number larger than the largest valid signal
number. This is usually the same as the "NSIG" macro.
"sig_name"
From _s_i_g___n_a_m_e_._U:
This variable holds the signal names, space separated. The leading
"SIG" in signal name is removed. A "ZERO" is prepended to the list.
This is currently not used, sig_name_init is used instead.
"sig_name_init"
From _s_i_g___n_a_m_e_._U:
This variable holds the signal names, enclosed in double quotes and
separated by commas, suitable for use in the "SIG_NAME" definition
below. A "ZERO" is prepended to the list, and the list is terminated
with a plain 0. The leading "SIG" in signal names is removed. See
sig_num.
"sig_num"
From _s_i_g___n_a_m_e_._U:
This variable holds the signal numbers, space separated. A "ZERO" is
prepended to the list (corresponding to the fake "SIGZERO"). Those
numbers correspond to the value of the signal listed in the same
place within the sig_name list. This is currently not used,
sig_num_init is used instead.
"sig_num_init"
From _s_i_g___n_a_m_e_._U:
This variable holds the signal numbers, enclosed in double quotes and
separated by commas, suitable for use in the "SIG_NUM" definition
below. A "ZERO" is prepended to the list, and the list is terminated
with a plain 0.
"sig_size"
From _s_i_g___n_a_m_e_._U:
This variable contains the number of elements of the sig_name and
sig_num arrays.
"signal_t"
From _d___v_o_i_d_s_i_g_._U:
This variable holds the type of the signal handler (void or int).
"sitearch"
From _s_i_t_e_a_r_c_h_._U:
This variable contains the eventual value of the "SITEARCH" symbol,
which is the name of the private library for this package. It may
have a _~ on the front. It is up to the makefile to eventually create
this directory while performing installation (with _~ substitution).
The standard distribution will put nothing in this directory. After
perl has been installed, users may install their own local
architecture-dependent modules in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L or equivalent. See "INSTALL" for details.
"sitearchexp"
From _s_i_t_e_a_r_c_h_._U:
This variable is the _~_n_a_m_e expanded version of sitearch, so that you
may use it directly in Makefiles or shell scripts.
"sitebin"
From _s_i_t_e_b_i_n_._U:
This variable holds the name of the directory in which the user wants
to put add-on publicly executable files for the package in question.
It is most often a local directory such as _/_u_s_r_/_l_o_c_a_l_/_b_i_n. Programs
using this variable must be prepared to deal with _~_n_a_m_e substitution.
The standard distribution will put nothing in this directory. After
perl has been installed, users may install their own local
executables in this directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L or
equivalent. See "INSTALL" for details.
"sitebinexp"
From _s_i_t_e_b_i_n_._U:
This is the same as the sitebin variable, but is filename expanded at
configuration time, for use in your makefiles.
"sitehtml1dir"
From _s_i_t_e_h_t_m_l_1_d_i_r_._U:
This variable contains the name of the directory in which site-
specific html source pages are to be put. It is the responsibility
of the _M_a_k_e_f_i_l_e_._S_H to get the value of this into the proper command.
You must be prepared to do the _~_n_a_m_e expansion yourself. The
standard distribution will put nothing in this directory. After perl
has been installed, users may install their own local html pages in
this directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L or equivalent. See
"INSTALL" for details.
"sitehtml1direxp"
From _s_i_t_e_h_t_m_l_1_d_i_r_._U:
This variable is the same as the sitehtml1dir variable, but is
filename expanded at configuration time, for convenient use in
makefiles.
"sitehtml3dir"
From _s_i_t_e_h_t_m_l_3_d_i_r_._U:
This variable contains the name of the directory in which site-
specific library html source pages are to be put. It is the
responsibility of the _M_a_k_e_f_i_l_e_._S_H to get the value of this into the
proper command. You must be prepared to do the _~_n_a_m_e expansion
yourself. The standard distribution will put nothing in this
directory. After perl has been installed, users may install their
own local library html pages in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L or equivalent. See "INSTALL" for details.
"sitehtml3direxp"
From _s_i_t_e_h_t_m_l_3_d_i_r_._U:
This variable is the same as the sitehtml3dir variable, but is
filename expanded at configuration time, for convenient use in
makefiles.
"sitelib"
From _s_i_t_e_l_i_b_._U:
This variable contains the eventual value of the "SITELIB" symbol,
which is the name of the private library for this package. It may
have a _~ on the front. It is up to the makefile to eventually create
this directory while performing installation (with _~ substitution).
The standard distribution will put nothing in this directory. After
perl has been installed, users may install their own local
architecture-independent modules in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L or equivalent. See "INSTALL" for details.
"sitelib_stem"
From _s_i_t_e_l_i_b_._U:
This variable is $sitelibexp with any trailing version-specific
component removed. The elements in inc_version_list
(_i_n_c___v_e_r_s_i_o_n___l_i_s_t_._U) can be tacked onto this variable to generate a
list of directories to search.
"sitelibexp"
From _s_i_t_e_l_i_b_._U:
This variable is the _~_n_a_m_e expanded version of sitelib, so that you
may use it directly in Makefiles or shell scripts.
"siteman1dir"
From _s_i_t_e_m_a_n_1_d_i_r_._U:
This variable contains the name of the directory in which site-
specific manual source pages are to be put. It is the responsibility
of the _M_a_k_e_f_i_l_e_._S_H to get the value of this into the proper command.
You must be prepared to do the _~_n_a_m_e expansion yourself. The
standard distribution will put nothing in this directory. After perl
has been installed, users may install their own local man1 pages in
this directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L or equivalent. See
"INSTALL" for details.
"siteman1direxp"
From _s_i_t_e_m_a_n_1_d_i_r_._U:
This variable is the same as the siteman1dir variable, but is
filename expanded at configuration time, for convenient use in
makefiles.
"siteman3dir"
From _s_i_t_e_m_a_n_3_d_i_r_._U:
This variable contains the name of the directory in which site-
specific library man source pages are to be put. It is the
responsibility of the _M_a_k_e_f_i_l_e_._S_H to get the value of this into the
proper command. You must be prepared to do the _~_n_a_m_e expansion
yourself. The standard distribution will put nothing in this
directory. After perl has been installed, users may install their
own local man3 pages in this directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L or
equivalent. See "INSTALL" for details.
"siteman3direxp"
From _s_i_t_e_m_a_n_3_d_i_r_._U:
This variable is the same as the siteman3dir variable, but is
filename expanded at configuration time, for convenient use in
makefiles.
"siteprefix"
From _s_i_t_e_p_r_e_f_i_x_._U:
This variable holds the full absolute path of the directory below
which the user will install add-on packages. See "INSTALL" for usage
and examples.
"siteprefixexp"
From _s_i_t_e_p_r_e_f_i_x_._U:
This variable holds the full absolute path of the directory below
which the user will install add-on packages. Derived from
siteprefix.
"sitescript"
From _s_i_t_e_s_c_r_i_p_t_._U:
This variable holds the name of the directory in which the user wants
to put add-on publicly executable files for the package in question.
It is most often a local directory such as _/_u_s_r_/_l_o_c_a_l_/_b_i_n. Programs
using this variable must be prepared to deal with _~_n_a_m_e substitution.
The standard distribution will put nothing in this directory. After
perl has been installed, users may install their own local scripts in
this directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L or equivalent. See
"INSTALL" for details.
"sitescriptexp"
From _s_i_t_e_s_c_r_i_p_t_._U:
This is the same as the sitescript variable, but is filename expanded
at configuration time, for use in your makefiles.
"sizesize"
From _s_i_z_e_s_i_z_e_._U:
This variable contains the size of a sizetype in bytes.
"sizetype"
From _s_i_z_e_t_y_p_e_._U:
This variable defines sizetype to be something like size_t, unsigned
long, or whatever type is used to declare length parameters for
string functions.
"sleep"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"sLOCALTIME_max"
From _t_i_m_e___s_i_z_e_._U:
This variable defines the maximum value of the time_t offset that the
system function localtime () accepts
"sLOCALTIME_min"
From _t_i_m_e___s_i_z_e_._U:
This variable defines the minimum value of the time_t offset that the
system function localtime () accepts
"smail"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"so"
From _s_o_._U:
This variable holds the extension used to identify shared libraries
(also known as shared objects) on the system. Usually set to "so".
"sockethdr"
From _d___s_o_c_k_e_t_._U:
This variable has any cpp "-I" flags needed for socket support.
"socketlib"
From _d___s_o_c_k_e_t_._U:
This variable has the names of any libraries needed for socket
support.
"socksizetype"
From _s_o_c_k_s_i_z_e_t_y_p_e_._U:
This variable holds the type used for the size argument for various
socket calls like accept. Usual values include socklen_t, size_t,
and int.
"sort"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the sort program. After Configure runs, the
value is reset to a plain "sort" and is not useful.
"spackage"
From _p_a_c_k_a_g_e_._U:
This variable contains the name of the package being constructed,
with the first letter uppercased, _i_._e. suitable for starting
sentences.
"spitshell"
From _s_p_i_t_s_h_e_l_l_._U:
This variable contains the command necessary to spit out a runnable
shell on this system. It is either cat or a grep "-v" for #
comments.
"sPRId64"
From _q_u_a_d_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format 64-bit decimal numbers (format "d") for output.
"sPRIeldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "e") for output.
"sPRIEUldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "E") for output. The "U" in the name is
to separate this from sPRIeldbl so that even case-blind systems can
see the difference.
"sPRIfldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "f") for output.
"sPRIFUldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "F") for output. The "U" in the name is
to separate this from sPRIfldbl so that even case-blind systems can
see the difference.
"sPRIgldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "g") for output.
"sPRIGUldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "G") for output. The "U" in the name is
to separate this from sPRIgldbl so that even case-blind systems can
see the difference.
"sPRIi64"
From _q_u_a_d_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format 64-bit decimal numbers (format "i") for output.
"sPRIo64"
From _q_u_a_d_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format 64-bit octal numbers (format "o") for output.
"sPRIu64"
From _q_u_a_d_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format 64-bit unsigned decimal numbers (format "u") for output.
"sPRIx64"
From _q_u_a_d_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format 64-bit hexadecimal numbers (format "x") for output.
"sPRIXU64"
From _q_u_a_d_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format 64-bit hExADECimAl numbers (format "X") for output. The "U"
in the name is to separate this from sPRIx64 so that even case-blind
systems can see the difference.
"srand48_r_proto"
From _d___s_r_a_n_d_4_8___r_._U:
This variable encodes the prototype of srand48_r. It is zero if
d_srand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_srand48_r is defined.
"srandom_r_proto"
From _d___s_r_a_n_d_o_m___r_._U:
This variable encodes the prototype of srandom_r. It is zero if
d_srandom_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_srandom_r is defined.
"src"
From _s_r_c_._U:
This variable holds the (possibly relative) path of the package
source. It is up to the Makefile to use this variable and set
"VPATH" accordingly to find the sources remotely. Use $pkgsrc to
have an absolute path.
"sSCNfldbl"
From _l_o_n_g_d_b_l_f_i_o_._U:
This variable, if defined, contains the string used by stdio to
format long doubles (format "f") for input.
"ssizetype"
From _s_s_i_z_e_t_y_p_e_._U:
This variable defines ssizetype to be something like ssize_t, long or
int. It is used by functions that return a count of bytes or an
error condition. It must be a signed type. We will pick a type such
that sizeof(SSize_t) == sizeof(Size_t).
"st_dev_sign"
From _s_t___d_e_v___d_e_f_._U:
This variable contains the signedness of struct stat's st_dev. 1 for
unsigned, -1 for signed.
"st_dev_size"
From _s_t___d_e_v___d_e_f_._U:
This variable contains the size of struct stat's st_dev in bytes.
"st_ino_sign"
From _s_t___i_n_o___d_e_f_._U:
This variable contains the signedness of struct stat's st_ino. 1 for
unsigned, -1 for signed.
"st_ino_size"
From _s_t___i_n_o___d_e_f_._U:
This variable contains the size of struct stat's st_ino in bytes.
"startperl"
From _s_t_a_r_t_p_e_r_l_._U:
This variable contains the string to put on the front of a perl
script to make sure (hopefully) that it runs with perl and not some
shell. Of course, that leading line must be followed by the classical
perl idiom: eval 'exec perl -S $0 ${1+$@}' if
$running_under_some_shell; to guarantee perl startup should the shell
execute the script. Note that this magic incantation is not
understood by csh.
"startsh"
From _s_t_a_r_t_s_h_._U:
This variable contains the string to put on the front of a shell
script to make sure (hopefully) that it runs with sh and not some
other shell.
"static_ext"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds a list of "XS" extension files we want to link
statically into the package. It is used by Makefile.
"stdchar"
From _s_t_d_c_h_a_r_._U:
This variable conditionally defines "STDCHAR" to be the type of char
used in _s_t_d_i_o_._h. It has the values "unsigned char" or "char".
"stdio_base"
From _d___s_t_d_s_t_d_i_o_._U:
This variable defines how, given a "FILE" pointer, fp, to access the
_base field (or equivalent) of _s_t_d_i_o_._h's "FILE" structure. This will
be used to define the macro FILE_base(fp).
"stdio_bufsiz"
From _d___s_t_d_s_t_d_i_o_._U:
This variable defines how, given a "FILE" pointer, fp, to determine
the number of bytes store in the I/O buffer pointer to by the _base
field (or equivalent) of _s_t_d_i_o_._h's "FILE" structure. This will be
used to define the macro FILE_bufsiz(fp).
"stdio_cnt"
From _d___s_t_d_s_t_d_i_o_._U:
This variable defines how, given a "FILE" pointer, fp, to access the
_cnt field (or equivalent) of _s_t_d_i_o_._h's "FILE" structure. This will
be used to define the macro FILE_cnt(fp).
"stdio_filbuf"
From _d___s_t_d_s_t_d_i_o_._U:
This variable defines how, given a "FILE" pointer, fp, to tell stdio
to refill its internal buffers (?). This will be used to define the
macro FILE_filbuf(fp).
"stdio_ptr"
From _d___s_t_d_s_t_d_i_o_._U:
This variable defines how, given a "FILE" pointer, fp, to access the
_ptr field (or equivalent) of _s_t_d_i_o_._h's "FILE" structure. This will
be used to define the macro FILE_ptr(fp).
"stdio_stream_array"
From _s_t_d_i_o___s_t_r_e_a_m_s_._U:
This variable tells the name of the array holding the stdio streams.
Usual values include _iob, __iob, and __sF.
"strerror_r_proto"
From _d___s_t_r_e_r_r_o_r___r_._U:
This variable encodes the prototype of strerror_r. It is zero if
d_strerror_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_strerror_r is defined.
"submit"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"subversion"
From _p_a_t_c_h_l_e_v_e_l_._U:
The subversion level of this package. The value of subversion comes
from the _p_a_t_c_h_l_e_v_e_l_._h file. In a version number such as 5.6.1, this
is the 1. In _p_a_t_c_h_l_e_v_e_l_._h, this is referred to as "PERL_SUBVERSION".
This is unique to perl.
"sysman"
From _s_y_s_m_a_n_._U:
This variable holds the place where the manual is located on this
system. It is not the place where the user wants to put his manual
pages. Rather it is the place where Configure may look to find manual
for unix commands (section 1 of the manual usually). See mansrc.
"sysroot"
From _S_y_s_r_o_o_t_._U:
This variable is empty unless supplied by the Configure user. It can
contain a path to an alternative root directory, under which headers
and libraries for the compilation target can be found. This is
generally used when cross-compiling using a gcc-like compiler.
tt “tail” From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"tar"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"targetarch"
From _C_r_o_s_s_._U:
If cross-compiling, this variable contains the target architecture.
If not, this will be empty.
"targetdir"
From _C_r_o_s_s_._U:
This variable contains a path that will be created on the target host
using targetmkdir, and then used to copy the cross-compiled
executables to. Defaults to _/_t_m_p if not set.
"targetenv"
From _C_r_o_s_s_._U:
If cross-compiling, this variable can be used to modify the
environment on the target system. However, how and where it's used,
and even if it's used at all, is entirely dependent on both the
transport mechanism (targetrun) and what the target system is.
Unless the relevant documentation says otherwise, it is genereally
not useful.
"targethost"
From _C_r_o_s_s_._U:
This variable contains the name of a separate host machine that can
be used to run compiled test programs and perl tests on. Set to
empty string if not in use.
"targetmkdir"
From _C_r_o_s_s_._U:
This variable contains the command used by Configure to create a new
directory on the target host.
"targetport"
From _C_r_o_s_s_._U:
This variable contains the number of a network port to be used to
connect to the host in targethost, if unset defaults to 22 for ssh.
"targetsh"
From _s_h_._U:
If cross-compiling, this variable contains the location of sh on the
target system. If not, this will be the same as $sh.
"tbl"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"tee"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"test"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the test program. After Configure runs, the
value is reset to a plain "test" and is not useful.
"timeincl"
From _i___t_i_m_e_._U:
This variable holds the full path of the included time header(s).
"timetype"
From _d___t_i_m_e_._U:
This variable holds the type returned by ttiimmee(()). It can be long, or
time_t on "BSD" sites (in which case <sys/types.h> should be
included). Anyway, the type Time_t should be used.
"tmpnam_r_proto"
From _d___t_m_p_n_a_m___r_._U:
This variable encodes the prototype of tmpnam_r. It is zero if
d_tmpnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros of
_r_e_e_n_t_r_._h if d_tmpnam_r is defined.
"to"
From _C_r_o_s_s_._U:
This variable contains the command used by Configure to copy to from
the target host. Useful and available only during Perl build. The
string ":" if not cross-compiling.
"touch"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the touch program. After Configure runs, the
value is reset to a plain "touch" and is not useful.
"tr"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the tr program. After Configure runs, the value
is reset to a plain "tr" and is not useful.
"trnl"
From _t_r_n_l_._U:
This variable contains the value to be passed to the ttrr(1) command to
transliterate a newline. Typical values are "\012" and "\n". This
is needed for "EBCDIC" systems where newline is not necessarily
"\012".
"troff"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"ttyname_r_proto"
From _d___t_t_y_n_a_m_e___r_._U:
This variable encodes the prototype of ttyname_r. It is zero if
d_ttyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
of _r_e_e_n_t_r_._h if d_ttyname_r is defined.
uu “u16size” From _p_e_r_l_x_v_._U:
This variable is the size of an U16 in bytes.
"u16type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's U16.
"u32size"
From _p_e_r_l_x_v_._U:
This variable is the size of an U32 in bytes.
"u32type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's U32.
"u64size"
From _p_e_r_l_x_v_._U:
This variable is the size of an U64 in bytes.
"u64type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's U64.
"u8size"
From _p_e_r_l_x_v_._U:
This variable is the size of an U8 in bytes.
"u8type"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's U8.
"uidformat"
From _u_i_d_f_._U:
This variable contains the format string used for printing a Uid_t.
"uidsign"
From _u_i_d_s_i_g_n_._U:
This variable contains the signedness of a uidtype. 1 for unsigned,
-1 for signed.
"uidsize"
From _u_i_d_s_i_z_e_._U:
This variable contains the size of a uidtype in bytes.
"uidtype"
From _u_i_d_t_y_p_e_._U:
This variable defines Uid_t to be something like uid_t, int, ushort,
or whatever type is used to declare user ids in the kernel.
"uname"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the uname program. After Configure runs, the
value is reset to a plain "uname" and is not useful.
"uniq"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the uniq program. After Configure runs, the
value is reset to a plain "uniq" and is not useful.
"uquadtype"
From _q_u_a_d_t_y_p_e_._U:
This variable defines Uquad_t to be something like unsigned long,
unsigned int, unsigned long long, uint64_t, or whatever type is used
for 64-bit integers.
"use64bitall"
From _u_s_e_6_4_b_i_t_s_._U:
This variable conditionally defines the USE_64_BIT_ALL symbol, and
indicates that 64-bit integer types should be used when available.
The maximal possible 64-bitness is employed: LP64 or ILP64, meaning
that you will be able to use more than 2 gigabytes of memory. This
mode is even more binary incompatible than USE_64_BIT_INT. You may
not be able to run the resulting executable in a 32-bit "CPU" at all
or you may need at least to reboot your "OS" to 64-bit mode.
"use64bitint"
From _u_s_e_6_4_b_i_t_s_._U:
This variable conditionally defines the USE_64_BIT_INT symbol, and
indicates that 64-bit integer types should be used when available.
The minimal possible 64-bitness is employed, just enough to get
64-bit integers into Perl. This may mean using for example "long
longs", while your memory may still be limited to 2 gigabytes.
"usecbacktrace"
From _u_s_e_b_a_c_k_t_r_a_c_e_._U:
This variable indicates whether we are compiling with backtrace
support.
"usecrosscompile"
From _C_r_o_s_s_._U:
This variable conditionally defines the "USE_CROSS_COMPILE" symbol,
and indicates that Perl has been cross-compiled.
"usedefaultstrict"
From _u_s_e_d_e_f_a_u_l_t_s_t_r_i_c_t_._U:
This setting provides a mechanism for perl developers to enable
strict by default. These defaults do not apply when perl is run via
-e or -E.
"usedevel"
From _D_e_v_e_l_._U:
This variable indicates that Perl was configured with development
features enabled. This should not be done for production builds.
"usedl"
From _d_l_s_r_c_._U:
This variable indicates if the system supports dynamic loading of
some sort. See also dlsrc and dlobj.
"usedtrace"
From _u_s_e_d_t_r_a_c_e_._U:
This variable indicates whether we are compiling with dtrace support.
See also dtrace.
"usefaststdio"
From _u_s_e_f_a_s_t_s_t_d_i_o_._U:
This variable conditionally defines the "USE_FAST_STDIO" symbol, and
indicates that Perl should be built to use "fast stdio". Defaults to
define in Perls 5.8 and earlier, to undef later.
"useithreads"
From _u_s_e_t_h_r_e_a_d_s_._U:
This variable conditionally defines the "USE_ITHREADS" symbol, and
indicates that Perl should be built to use the interpreter-based
threading implementation.
"usekernprocpathname"
From _u_s_e_k_e_r_n_p_r_o_c_p_a_t_h_n_a_m_e_._U:
This variable, indicates that we can use sysctl with
"KERN_PROC_PATHNAME" to get a full path for the executable, and hence
convert $^X to an absolute path.
"uselanginfo"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds either "true" or "false" to indicate whether the
I18N::Langinfo extension should be used. The sole use for this
currently is to allow an easy mechanism for users to skip this
extension from the Configure command line.
"uselargefiles"
From _u_s_e_l_f_s_._U:
This variable conditionally defines the "USE_LARGE_FILES" symbol, and
indicates that large file interfaces should be used when available.
"uselongdouble"
From _u_s_e_l_o_n_g_d_b_l_._U:
This variable conditionally defines the "USE_LONG_DOUBLE" symbol, and
indicates that long doubles should be used when available.
"usemallocwrap"
From _m_a_l_l_o_c_s_r_c_._U:
This variable contains y if we are wrapping malloc to prevent integer
overflow during size calculations.
"usemorebits"
From _u_s_e_m_o_r_e_b_i_t_s_._U:
This variable conditionally defines the "USE_MORE_BITS" symbol, and
indicates that explicit 64-bit interfaces and long doubles should be
used when available.
"usemultiplicity"
From _u_s_e_m_u_l_t_i_p_l_i_c_i_t_y_._U:
This variable conditionally defines the "MULTIPLICITY" symbol, and
indicates that Perl should be built to use multiplicity.
"usemymalloc"
From _m_a_l_l_o_c_s_r_c_._U:
This variable contains y if the malloc that comes with this package
is desired over the system's version of malloc. People often include
special versions of malloc for efficiency, but such versions are
often less portable. See also mallocsrc and mallocobj. If this is
"y", then -lmalloc is removed from $libs.
"usenm"
From _u_s_e_n_m_._U:
This variable contains "true" or "false" depending whether the nm
extraction is wanted or not.
"usensgetexecutablepath"
From _u_s_e_n_s_g_e_t_e_x_e_c_u_t_a_b_l_e_p_a_t_h_._U:
This symbol, if defined, indicates that we can use
_NSGetExecutablePath and realpath to get a full path for the
executable, and hence convert $^X to an absolute path.
"useopcode"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds either "true" or "false" to indicate whether the
Opcode extension should be used. The sole use for this currently is
to allow an easy mechanism for users to skip the Opcode extension
from the Configure command line.
"useperlio"
From _u_s_e_p_e_r_l_i_o_._U:
This variable conditionally defines the "USE_PERLIO" symbol, and
indicates that the PerlIO abstraction should be used throughout.
"useposix"
From _E_x_t_e_n_s_i_o_n_s_._U:
This variable holds either "true" or "false" to indicate whether the
"POSIX" extension should be used. The sole use for this currently is
to allow an easy mechanism for hints files to indicate that "POSIX"
will not compile on a particular system.
"usequadmath"
From _u_s_e_q_u_a_d_m_a_t_h_._U:
This variable conditionally defines the "USE_QUADMATH" symbol, and
indicates that the quadmath library __float128 long doubles should be
used when available.
"usereentrant"
From _u_s_e_t_h_r_e_a_d_s_._U:
This variable conditionally defines the "USE_REENTRANT_API" symbol,
which indicates that the thread code may try to use the various _r
versions of library functions. This is only potentially meaningful
if usethreads is set and is very experimental, it is not even
prompted for.
"userelocatableinc"
From _b_i_n_._U:
This variable is set to true to indicate that perl should relocate
@"INC" entries at runtime based on the path to the perl binary. Any
@"INC" paths starting _._._._/ are relocated relative to the directory
containing the perl binary, and a logical cleanup of the path is then
made around the join point (removing _d_i_r_/_._._/ pairs)
"useshrplib"
From _l_i_b_p_e_r_l_._U:
This variable is set to "true" if the user wishes to build a shared
libperl, and "false" otherwise.
"usesitecustomize"
From _d___s_i_t_e_c_u_s_t_o_m_i_z_e_._U:
This variable is set to true when the user requires a mechanism that
allows the sysadmin to add entries to @"INC" at runtime. This
variable being set, makes perl run _$_s_i_t_e_l_i_b_/_s_i_t_e_c_u_s_t_o_m_i_z_e_._p_l at
startup.
"usesocks"
From _u_s_e_s_o_c_k_s_._U:
This variable conditionally defines the "USE_SOCKS" symbol, and
indicates that Perl should be built to use "SOCKS".
"usethreads"
From _u_s_e_t_h_r_e_a_d_s_._U:
This variable conditionally defines the "USE_THREADS" symbol, and
indicates that Perl should be built to use threads.
"usevendorprefix"
From _v_e_n_d_o_r_p_r_e_f_i_x_._U:
This variable tells whether the vendorprefix and consequently other
vendor* paths are in use.
"useversionedarchname"
From _a_r_c_h_n_a_m_e_._U:
This variable indicates whether to include the $api_versionstring as
a component of the $archname.
"usevfork"
From _d___v_f_o_r_k_._U:
This variable is set to true when the user accepts to use vfork. It
is set to false when no vfork is available or when the user
explicitly requests not to use vfork.
"usrinc"
From _u_s_r_i_n_c_._U:
This variable holds the path of the include files, which is usually
_/_u_s_r_/_i_n_c_l_u_d_e. It is mainly used by other Configure units.
"uuname"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"uvoformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"UV" as an unsigned octal integer.
"uvsize"
From _p_e_r_l_x_v_._U:
This variable is the size of a "UV" in bytes.
"uvtype"
From _p_e_r_l_x_v_._U:
This variable contains the C type used for Perl's "UV".
"uvuformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"UV" as an unsigned decimal integer.
"uvxformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"UV" as an unsigned hexadecimal integer in lowercase abcdef.
"uvXUformat"
From _p_e_r_l_x_v_f_._U:
This variable contains the format string used for printing a Perl
"UV" as an unsigned hexadecimal integer in uppercase "ABCDEF".
vv “vendorarch” From _v_e_n_d_o_r_a_r_c_h_._U:
This variable contains the value of the "PERL_VENDORARCH" symbol. It
may have a _~ on the front. The standard distribution will put
nothing in this directory. Vendors who distribute perl may wish to
place their own architecture-dependent modules and extensions in this
directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or
equivalent. See "INSTALL" for details.
"vendorarchexp"
From _v_e_n_d_o_r_a_r_c_h_._U:
This variable is the _~_n_a_m_e expanded version of vendorarch, so that
you may use it directly in Makefiles or shell scripts.
"vendorbin"
From _v_e_n_d_o_r_b_i_n_._U:
This variable contains the eventual value of the "VENDORBIN" symbol.
It may have a _~ on the front. The standard distribution will put
nothing in this directory. Vendors who distribute perl may wish to
place additional binaries in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
details.
"vendorbinexp"
From _v_e_n_d_o_r_b_i_n_._U:
This variable is the _~_n_a_m_e expanded version of vendorbin, so that you
may use it directly in Makefiles or shell scripts.
"vendorhtml1dir"
From _v_e_n_d_o_r_h_t_m_l_1_d_i_r_._U:
This variable contains the name of the directory for html pages. It
may have a _~ on the front. The standard distribution will put
nothing in this directory. Vendors who distribute perl may wish to
place their own html pages in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
details.
"vendorhtml1direxp"
From _v_e_n_d_o_r_h_t_m_l_1_d_i_r_._U:
This variable is the _~_n_a_m_e expanded version of vendorhtml1dir, so
that you may use it directly in Makefiles or shell scripts.
"vendorhtml3dir"
From _v_e_n_d_o_r_h_t_m_l_3_d_i_r_._U:
This variable contains the name of the directory for html library
pages. It may have a _~ on the front. The standard distribution will
put nothing in this directory. Vendors who distribute perl may wish
to place their own html pages for modules and extensions in this
directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or
equivalent. See "INSTALL" for details.
"vendorhtml3direxp"
From _v_e_n_d_o_r_h_t_m_l_3_d_i_r_._U:
This variable is the _~_n_a_m_e expanded version of vendorhtml3dir, so
that you may use it directly in Makefiles or shell scripts.
"vendorlib"
From _v_e_n_d_o_r_l_i_b_._U:
This variable contains the eventual value of the "VENDORLIB" symbol,
which is the name of the private library for this package. The
standard distribution will put nothing in this directory. Vendors
who distribute perl may wish to place their own modules in this
directory with MakeMaker _M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or
equivalent. See "INSTALL" for details.
"vendorlib_stem"
From _v_e_n_d_o_r_l_i_b_._U:
This variable is $vendorlibexp with any trailing version-specific
component removed. The elements in inc_version_list
(_i_n_c___v_e_r_s_i_o_n___l_i_s_t_._U) can be tacked onto this variable to generate a
list of directories to search.
"vendorlibexp"
From _v_e_n_d_o_r_l_i_b_._U:
This variable is the _~_n_a_m_e expanded version of vendorlib, so that you
may use it directly in Makefiles or shell scripts.
"vendorman1dir"
From _v_e_n_d_o_r_m_a_n_1_d_i_r_._U:
This variable contains the name of the directory for man1 pages. It
may have a _~ on the front. The standard distribution will put
nothing in this directory. Vendors who distribute perl may wish to
place their own man1 pages in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
details.
"vendorman1direxp"
From _v_e_n_d_o_r_m_a_n_1_d_i_r_._U:
This variable is the _~_n_a_m_e expanded version of vendorman1dir, so that
you may use it directly in Makefiles or shell scripts.
"vendorman3dir"
From _v_e_n_d_o_r_m_a_n_3_d_i_r_._U:
This variable contains the name of the directory for man3 pages. It
may have a _~ on the front. The standard distribution will put
nothing in this directory. Vendors who distribute perl may wish to
place their own man3 pages in this directory with MakeMaker
_M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
details.
"vendorman3direxp"
From _v_e_n_d_o_r_m_a_n_3_d_i_r_._U:
This variable is the _~_n_a_m_e expanded version of vendorman3dir, so that
you may use it directly in Makefiles or shell scripts.
"vendorprefix"
From _v_e_n_d_o_r_p_r_e_f_i_x_._U:
This variable holds the full absolute path of the directory below
which the vendor will install add-on packages. See "INSTALL" for
usage and examples.
"vendorprefixexp"
From _v_e_n_d_o_r_p_r_e_f_i_x_._U:
This variable holds the full absolute path of the directory below
which the vendor will install add-on packages. Derived from
vendorprefix.
"vendorscript"
From _v_e_n_d_o_r_s_c_r_i_p_t_._U:
This variable contains the eventual value of the "VENDORSCRIPT"
symbol. It may have a _~ on the front. The standard distribution
will put nothing in this directory. Vendors who distribute perl may
wish to place additional executable scripts in this directory with
MakeMaker _M_a_k_e_f_i_l_e_._P_L "INSTALLDIRS"=vendor or equivalent. See
"INSTALL" for details.
"vendorscriptexp"
From _v_e_n_d_o_r_s_c_r_i_p_t_._U:
This variable is the _~_n_a_m_e expanded version of vendorscript, so that
you may use it directly in Makefiles or shell scripts.
"version"
From _p_a_t_c_h_l_e_v_e_l_._U:
The full version number of this package, such as 5.6.1 (or 5_6_1).
This combines revision, patchlevel, and subversion to get the full
version number, including any possible subversions. This is suitable
for use as a directory name, and hence is filesystem dependent.
"version_patchlevel_string"
From _p_a_t_c_h_l_e_v_e_l_._U:
This is a string combining version, subversion and perl_patchlevel
(if perl_patchlevel is non-zero). It is typically something like
'version 7 subversion 1' or 'version 7 subversion 1 patchlevel
11224' It is computed here to avoid duplication of code in
_m_y_c_o_n_f_i_g_._S_H and _l_i_b_/_C_o_n_f_i_g_._p_m.
"versiononly"
From _v_e_r_s_i_o_n_o_n_l_y_._U:
If set, this symbol indicates that only the version-specific
components of a perl installation should be installed. This may be
useful for making a test installation of a new version without
disturbing the existing installation. Setting versiononly is
equivalent to setting installperl's -v option. In particular, the
non-versioned scripts and programs such as a2p, c2ph, h2xs, pod2*,
and perldoc are not installed (see "INSTALL" for a more complete
list). Nor are the man pages installed. Usually, this is undef.
"vi"
From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
xx “xlibpth” From _l_i_b_p_t_h_._U:
This variable holds extra path (space-separated) used to find
libraries on this platform, for example "CPU"-specific libraries (on
multi-"CPU" platforms) may be listed here.
"xlocale_needed"
From _d___n_e_w_l_o_c_a_l_e_._U:
This symbol, if defined, indicates that the C program should include
<xlocale.h> to get nneewwllooccaallee(()) and its friends.
yy “yacc” From _y_a_c_c_._U:
This variable holds the name of the compiler compiler we want to use
in the Makefile. It can be yacc, byacc, or bison -y.
"yaccflags"
From _y_a_c_c_._U:
This variable contains any additional yacc flags desired by the user.
It is up to the Makefile to use this.
zz “zcat” From _L_o_c_._U:
This variable is defined but not used by Configure. The value is the
empty string and is not useful.
"zip"
From _L_o_c_._U:
This variable is used internally by Configure to determine the full
pathname (if any) of the zip program. After Configure runs, the
value is reset to a plain "zip" and is not useful.
GGIITT DDAATTAA #
Information on the git commit from which the current perl binary was
compiled can be found in the variable $Config::Git_Data. The variable is
a structured string that looks something like this:
git_commit_id='ea0c2dbd5f5ac6845ecc7ec6696415bf8e27bd52'
git_describe='GitLive-blead-1076-gea0c2db'
git_branch='smartmatch'
git_uncommitted_changes=''
git_commit_id_title='Commit id:'
git_commit_date='2009-05-09 17:47:31 +0200'
Its format is not guaranteed not to change over time.
NNOOTTEE #
This module contains a good example of how to use tie to implement a
cache and an example of how to make a tied variable readonly to those
outside of it.
perl v5.36.3 2024-03-20 Config(3p)