generates pod documentation for Config.pm from this file--please try to keep
the formatting regular.]
-CONFIGDOTSH (Oldsyms.U):
- This is set to 'true' in config.sh so that a shell script
- sourcing config.sh can tell if it has been sourced already.
-
-Mcc (Loc.U):
- This variable is used internally by Configure to determine the
- full pathname (if any) of the Mcc program. After Configure runs,
- the value is reset to a plain "Mcc" and is not useful.
-
-PERL_APIVERSION (Oldsyms.U):
- This value is manually set in patchlevel.h and is used
- to set the Configure apiversion variable.
-
-PERL_REVISION (Oldsyms.U):
- In a Perl version number such as 5.6.2, this is the 5.
- This value is manually set in patchlevel.h
-
-PERL_SUBVERSION (Oldsyms.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 patchlevel.h
-
-PERL_VERSION (Oldsyms.U):
- In a Perl version number such as 5.6.2, this is the 6.
- This value is manually set in patchlevel.h
-
_a (Unix.U):
This variable defines the extension used for ordinary libraries.
For unix, it is '.a'. The '.' is included. Other possible
host name. The command is fully qualified by its absolute path, to make
it safe when used by a process with super-user privileges.
-apiversion (patchlevel.U):
- MakeMaker will install add-on modules in a directory with the
- PERL_APIVERSION version number. The value is set manually in
- patchlevel.h. Normally, for maintenance releases, this is
- just something like 5.005 or 5.6 or 5.7. That is, it does not
- include the subversion number and does not change across
- maintenance releases. This is so that add-on extensions can
- be shared across maintenance versions. It is unclear how this
- ought to work for developer versions. If a release breaks
- binary compatibility, this number should be increased.
+api_revision (patchlevel.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.
+ perl.c:incpush() and lib/lib.pm will automatically search in
+ $sitelib/.. 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 inc_version_list.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 patchlevel.h.
+ Perhaps what we ought to do is take the hard-wired value from
+ patchlevel.h but then modify it if the current Configure
+ options warrant. patchlevel.h then would use an #ifdef guard.
+
+api_subversion (patchlevel.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 (patchlevel.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 (patchlevel.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 (Loc.U):
This variable is used internally by Configure to determine the
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
+CONFIGDOTSH (Oldsyms.U):
+ This is set to 'true' in config.sh so that a shell script
+ sourcing config.sh can tell if it has been sourced already.
+
contains (contains.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
used by the C preprocessor.
cppccsymbols (Cppsym.U):
- The variable contains the symbols defined by the C compiler when
+ 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.
full pathname (if any) of the csh program. After Configure runs,
the value is reset to a plain "csh" and is not useful.
-d_Gconvert (d_gconvert.U):
- This variable holds what Gconvert is defined as to convert
- floating point numbers into strings. It could be 'gconvert'
- or a more complex macro emulating gconvert with gcvt() or sprintf.
- Possible values are:
- d_Gconvert='gconvert((x),(n),(t),(b))'
- d_Gconvert='gcvt((x),(n),(b))'
- d_Gconvert='sprintf((b),"%.*g",(n),(x))'
-
-d_PRIEldbl (longdblfio.U):
- This variable conditionally defines the PERL_PRIfldlbl symbol, which
- indiciates that stdio has a symbol to print long doubles.
-
-d_PRIFldbl (longdblfio.U):
- This variable conditionally defines the PERL_PRIfldlbl symbol, which
- indiciates that stdio has a symbol to print long doubles.
-
-d_PRIGldbl (longdblfio.U):
- This variable conditionally defines the PERL_PRIfldlbl symbol, which
- indiciates that stdio has a symbol to print long doubles.
-
-d_PRIX64 (quadfio.U):
- This variable conditionally defines the PERL_PRIX64 symbol, which
- indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
-
-d_PRId64 (quadfio.U):
- This variable conditionally defines the PERL_PRId64 symbol, which
- indiciates that stdio has a symbol to print 64-bit decimal numbers.
-
-d_PRIeldbl (longdblfio.U):
- This variable conditionally defines the PERL_PRIfldlbl symbol, which
- indiciates that stdio has a symbol to print long doubles.
-
-d_PRIfldbl (longdblfio.U):
- This variable conditionally defines the PERL_PRIfldlbl symbol, which
- indiciates that stdio has a symbol to print long doubles.
-
-d_PRIgldbl (longdblfio.U):
- This variable conditionally defines the PERL_PRIfldlbl symbol, which
- indiciates that stdio has a symbol to print long doubles.
-
-d_PRIi64 (quadfio.U):
- This variable conditionally defines the PERL_PRIi64 symbol, which
- indiciates that stdio has a symbol to print 64-bit decimal numbers.
-
-d_PRIo64 (quadfio.U):
- This variable conditionally defines the PERL_PRIo64 symbol, which
- indiciates that stdio has a symbol to print 64-bit octal numbers.
-
-d_PRIu64 (quadfio.U):
- This variable conditionally defines the PERL_PRIu64 symbol, which
- indiciates that stdio has a symbol to print 64-bit unsigned decimal
- numbers.
-
-d_PRIx64 (quadfio.U):
- This variable conditionally defines the PERL_PRIx64 symbol, which
- indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
-
d_access (d_access.U):
This variable conditionally defines HAS_ACCESS if the access() system
call is available to check for access permissions using real IDs.
that the ftime() routine exists. The ftime() routine is basically
a sub-second accuracy clock.
+d_Gconvert (d_gconvert.U):
+ This variable holds what Gconvert is defined as to convert
+ floating point numbers into strings. It could be 'gconvert'
+ or a more complex macro emulating gconvert with gcvt() or sprintf.
+ Possible values are:
+ d_Gconvert='gconvert((x),(n),(t),(b))'
+ d_Gconvert='gcvt((x),(n),(b))'
+ d_Gconvert='sprintf((b),"%.*g",(n),(x))'
+
d_getgrent (d_getgrent.U):
This variable conditionally defines the HAS_GETGRENT symbol, which
indicates to the C program that the getgrent() routine is available
indicates to the C program that it should not assume that it is
running on the machine it was compiled on.
+d_PRId64 (quadfio.U):
+ This variable conditionally defines the PERL_PRId64 symbol, which
+ indiciates that stdio has a symbol to print 64-bit decimal numbers.
+
+d_PRIeldbl (longdblfio.U):
+ This variable conditionally defines the PERL_PRIfldlbl symbol, which
+ indiciates that stdio has a symbol to print long doubles.
+
+d_PRIEldbl (longdblfio.U):
+ This variable conditionally defines the PERL_PRIfldlbl symbol, which
+ indiciates that stdio has a symbol to print long doubles.
+
+d_PRIfldbl (longdblfio.U):
+ This variable conditionally defines the PERL_PRIfldlbl symbol, which
+ indiciates that stdio has a symbol to print long doubles.
+
+d_PRIFldbl (longdblfio.U):
+ This variable conditionally defines the PERL_PRIfldlbl symbol, which
+ indiciates that stdio has a symbol to print long doubles.
+
+d_PRIgldbl (longdblfio.U):
+ This variable conditionally defines the PERL_PRIfldlbl symbol, which
+ indiciates that stdio has a symbol to print long doubles.
+
+d_PRIGldbl (longdblfio.U):
+ This variable conditionally defines the PERL_PRIfldlbl symbol, which
+ indiciates that stdio has a symbol to print long doubles.
+
+d_PRIi64 (quadfio.U):
+ This variable conditionally defines the PERL_PRIi64 symbol, which
+ indiciates that stdio has a symbol to print 64-bit decimal numbers.
+
+d_PRIo64 (quadfio.U):
+ This variable conditionally defines the PERL_PRIo64 symbol, which
+ indiciates that stdio has a symbol to print 64-bit octal numbers.
+
+d_PRIu64 (quadfio.U):
+ This variable conditionally defines the PERL_PRIu64 symbol, which
+ indiciates that stdio has a symbol to print 64-bit unsigned decimal
+ numbers.
+
+d_PRIx64 (quadfio.U):
+ This variable conditionally defines the PERL_PRIx64 symbol, which
+ indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
+
+d_PRIX64 (quadfio.U):
+ This variable conditionally defines the PERL_PRIX64 symbol, which
+ indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
+
d_pthread_yield (d_pthread_y.U):
This variable conditionally defines the HAS_PTHREAD_YIELD
symbol if the pthread_yield routine is available to yield
This variable conditionally defines PWQUOTA, which indicates
that struct passwd contains pw_quota.
+d_qgcvt (d_qgcvt.U):
+ This variable conditionally defines the HAS_QGCVT symbol, which
+ indicates to the C program that the qgcvt() routine is available.
+
d_quad (quadtype.U):
This variable, if defined, tells that there's a 64-bit integer type,
quadtype.
indicates to the C program that the strtol() routine is available
to provide better numeric string conversion than atoi() and friends.
+d_strtold (d_strtold.U):
+ This variable conditionally defines the HAS_STRTOLD symbol, which
+ indicates to the C program that the strtold() routine is available.
+
d_strtoul (d_strtoul.U):
This variable conditionally defines the HAS_STRTOUL symbol, which
indicates to the C program that the strtoul() routine is available
to provide conversion of strings to unsigned long.
-d_strtoull (strtoull.U):
+d_strtoull (d_strtoull.U):
This variable conditionally defines the HAS_STRTOULL symbol, which
indicates to the C program that the strtoull() routine is available.
+d_strtouq (d_strtouq.U):
+ This variable conditionally defines the HAS_STRTOUQ symbol, which
+ indicates to the C program that the strtouq() routine is available.
+
d_strxfrm (d_strxfrm.U):
This variable conditionally defines HAS_STRXFRM if strxfrm() is
available to transform strings.
and is typically used to test whether a particular extesion
is available.
-fflushNULL (fflushall.U):
- This symbol, if defined, tells that fflush(NULL) does flush
- all pending stdio output.
-
fflushall (fflushall.U):
This symbol, if defined, tells that to flush
all pending stdio output one must loop through all
Note that if fflushNULL is defined, fflushall will not
even be probed for and will be left undefined.
+fflushNULL (fflushall.U):
+ This symbol, if defined, tells that fflush(NULL) does flush
+ all pending stdio output.
+
find (Loc.U):
- This variable is used internally by Configure to determine the
- full pathname (if any) of the find program. After Configure runs,
- the value is reset to a plain "find" and is not useful.
+ This variable is defined but not used by Configure.
+ The value is a plain '' and is not useful.
firstmakefile (Unix.U):
This variable defines the first file searched by make. On unix,
libraries (libfoo.so.x.y) are to be ignored (because they
cannot be linked against).
+inc_version_list (inc_version_list.U):
+ This variable specifies the list of subdirectories in over
+ which perl.c:incpush() and lib/lib.pm will automatically
+ search when adding directories to @INC. 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.
+
incpath (usrinc.U):
This variable must preceed the normal include path to get hte
right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
ahead of ucb or bsd libraries for SVR4.
line (Loc.U):
- This variable is used internally by Configure to determine the
- full pathname (if any) of the line program. After Configure runs,
- the value is reset to a plain "line" and is not useful.
+ This variable is defined but not used by Configure.
+ The value is a plain '' and is not useful.
lint (Loc.U):
This variable is defined but not used by Configure.
have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
See man3dir.
+Mcc (Loc.U):
+ This variable is used internally by Configure to determine the
+ full pathname (if any) of the Mcc program. After Configure runs,
+ the value is reset to a plain "Mcc" and is not useful.
+
medium (models.U):
This variable contains a flag which will tell the C compiler and loader
to produce a program running with a medium memory model. If the
patchlevel (patchlevel.U):
The patchlevel level of this package.
The value of patchlevel comes from the patchlevel.h file.
+ In a version number such as 5.6.1, this is the "6".
+ In patchlevel.h, this is referred to as the "PERL_VERSION".
path_sep (Unix.U):
This is an old synonym for p_ in Head.U, the character
full pathname (if any) of the perl program. After Configure runs,
the value is reset to a plain "perl" and is not useful.
+PERL_REVISION (Oldsyms.U):
+ In a Perl version number such as 5.6.2, this is the 5.
+ This value is manually set in patchlevel.h
+
+PERL_SUBVERSION (Oldsyms.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 patchlevel.h
+
+PERL_VERSION (Oldsyms.U):
+ In a Perl version number such as 5.6.2, this is the 6.
+ This value is manually set in patchlevel.h
+
perladmin (perladmin.U):
Electronic mail address of the perl5 administrator.
Its value is prepend to libpth. This variable takes care of special
machines, like the mips. Usually, it should be empty.
-pm_apiversion (xs_apiversion.U):
- This variable contains the version of the oldest perl
- compatible with the present perl. (That is, pure perl modules
- written for $pm_apiversion will still work for the current
- version). perl.c:incpush() and lib/lib.pm will automatically
- search in $sitelib for older directories across major versions
- back to pm_apiversion. This is only useful if you have a perl
- library directory tree structured like the default one. The
- versioned site_perl library was introduced in 5.005, so that's
- the default setting for this variable. It's hard to imagine
- it changing before Perl6. It is included here for symmetry
- with xs_apiveprsion -- the searching algorithms will
- (presumably) be similar.
- See the INSTALL file for how this works.
-
pmake (Loc.U):
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
nm extraction should be performed or not, according to the value
of usenm and the flags on the Configure command line.
-sPRIEldbl (longdblfio.U):
- This variable, if defined, contains the string used by stdio to
- format long doubles (format 'E') for output.
-
-sPRIFldbl (longdblfio.U):
- This variable, if defined, contains the string used by stdio to
- format long doubles (format 'F') for output.
-
-sPRIGldbl (longdblfio.U):
- This variable, if defined, contains the string used by stdio to
- format long doubles (format 'G') for output.
-
-sPRIX64 (quadfio.U):
- This variable, if defined, contains the string used by stdio to
- format 64-bit hExADECimAl numbers (format 'X') for output.
-
-sPRId64 (quadfio.U):
- This variable, if defined, contains the string used by stdio to
- format 64-bit decimal numbers (format 'd') for output.
-
-sPRIeldbl (longdblfio.U):
- This variable, if defined, contains the string used by stdio to
- format long doubles (format 'e') for output.
-
-sPRIfldbl (longdblfio.U):
- This variable, if defined, contains the string used by stdio to
- format long doubles (format 'f') for output.
-
-sPRIgldbl (longdblfio.U):
- This variable, if defined, contains the string used by stdio to
- format long doubles (format 'g') for output.
-
-sPRIi64 (quadfio.U):
- This variable, if defined, contains the string used by stdio to
- format 64-bit decimal numbers (format 'i') for output.
-
-sPRIo64 (quadfio.U):
- This variable, if defined, contains the string used by stdio to
- format 64-bit octal numbers (format 'o') for output.
-
-sPRIu64 (quadfio.U):
- This variable, if defined, contains the string used by stdio to
- format 64-bit unsigned decimal numbers (format 'u') for output.
-
-sPRIx64 (quadfio.U):
- This variable, if defined, contains the string used by stdio to
- format 64-bit hexadecimal numbers (format 'x') for output.
-
sched_yield (d_pthread_y.U):
This variable defines the way to yield the execution
of the current thread.
have select(), naturally.
sendmail (Loc.U):
- This variable is used internally by Configure to determine the
- full pathname (if any) of the sendmail program. After Configure runs,
- the value is reset to a plain "sendmail" and is not useful.
+ This variable is defined but not used by Configure.
+ The value is a plain '' and is not useful.
sh (sh.U):
This variable contains the full pathname of the shell used
machines that support separation of instruction and data space. It is
up to the Makefile to use this.
+sPRId64 (quadfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format 64-bit decimal numbers (format 'd') for output.
+
+sPRIeldbl (longdblfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format long doubles (format 'e') for output.
+
+sPRIEldbl (longdblfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format long doubles (format 'E') for output.
+
+sPRIfldbl (longdblfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format long doubles (format 'f') for output.
+
+sPRIFldbl (longdblfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format long doubles (format 'F') for output.
+
+sPRIgldbl (longdblfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format long doubles (format 'g') for output.
+
+sPRIGldbl (longdblfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format long doubles (format 'G') for output.
+
+sPRIi64 (quadfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format 64-bit decimal numbers (format 'i') for output.
+
+sPRIo64 (quadfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format 64-bit octal numbers (format 'o') for output.
+
+sPRIu64 (quadfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format 64-bit unsigned decimal numbers (format 'u') for output.
+
+sPRIx64 (quadfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format 64-bit hexadecimal numbers (format 'x') for output.
+
+sPRIX64 (quadfio.U):
+ This variable, if defined, contains the string used by stdio to
+ format 64-bit hExADECimAl numbers (format 'X') for output.
+
src (src.U):
This variable holds the path to the package source. It is up to
the Makefile to use this variable and set VPATH accordingly to
subversion (patchlevel.U):
The subversion level of this package.
The value of subversion comes from the patchlevel.h file.
+ In a version number such as 5.6.1, this is the "1".
This is unique to perl.
sysman (sysman.U):
when available.
usedl (dlsrc.U):
- This variable indicates if the the system supports dynamic
+ This variable indicates if the system supports dynamic
loading of some sort. See also dlsrc and dlobj.
useithreads (usethreads.U):
which the vendor will install add-on packages. Derived from vendorprefix.
version (patchlevel.U):
- The full version number of this package. This combines
- baserev, patchlevel, and subversion to get the full
- version number, including any possible subversions. Care
- is taken to use the C locale in order to get something
- like 5.004 instead of 5,004. This is unique to perl.
+ The full version number of this package, such as 5.6.1 (or 5_6_1).
+ This combines baserev, 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.
vi (Loc.U):
This variable is defined but not used by Configure.
libraries on this platform, for example CPU-specific libraries
(on multi-CPU platforms) may be listed here.
-xs_apiversion (xs_apiversion.U):
- This variable contains the version of the oldest perl binary
- compatible with the present perl. perl.c:incpush() and
- lib/lib.pm will automatically search in $sitearch for older
- directories across major versions back to xs_apiversion.
- 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.
- Since this can depend on compile time options (such as
- bincompat) it is set by Configure. Other non-default sources
- of potential incompatibility, such as multiplicity, threads,
- debugging, 64bits, sfio, etc., are not checked for currently,
- though in principle we could go snooping around in old
- Config.pm files.
-
zcat (Loc.U):
This variable is defined but not used by Configure.
The value is a plain '' and is not useful.
https://perl5.git.perl.org / perl5.git / blobdiff