+1999-09-21 Akim Demaille <akim@epita.fr>
+
+ * NEWS: Updated.
+ * THANKS: Likewise.
+
+ * acgeneral.m4 (AC_CHECK_HEADER): Use AC_VAR_*.
+ (AC_CHECK_HEADERS): Adapted.
+
+ * acgeneral.m4 (AC_TR): Remove, it is useless.
+ (AC_TR_CPP): Updated version of formerly AC_TR_DEFINE, based on
+ the model of AC_TR_SH.
+ All callers changed.
+
+ * autoconf.sh (Checking for Bugs): Remove the indirection that
+ made the `sort -u' useless.
+
+1999-09-21 Akim Demaille <akim@epita.fr>
+
+ * autoconf.sh (Last sed cmd): Change also @PND@ to `#', since this
+ is also a symbol very hard to quote in m4.
+
+ * acgeneral.m4 (AC_CHECK_LIB): Use AC_VAR_*.
+
+ * acgeneral.m4: Use `m4_BUILTIN' instead of indirection via
+ `builtin'.
+
+1999-09-21 Akim Demaille <akim@epita.fr>
+
+ * autoconf.texi (Particular Structures): Move documentation of
+ AC_HEADER_STAT and AC_HEADER_TIME from here...
+ (Particular Headers): to here.
+ (Declarations): New section.
+ (Particular Headers): Move doc of AC_DECL_SYS_SIGLIST from here...
+ (Particular Declarations): to here.
+
+1999-09-21 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * acgeneral.m4 (AC_CHECK_FUNC_DECL, AC_CHECK_FUNC_DECLS): New
+ macros.
+
+ * autoconf.texi (AC_CHECK_FUNC_DECL, AC_CHECK_FUNC_DECLS):
+ Document.
+
+ * autoheader.m4: Add support for AC_CHECK_FUNC_DECLS.
+
+ * autoheader.sh: Likewise.
+
+1999-09-21 Akim Demaille <akim@epita.fr>
+
+ * acgeneral.m4 (AC_SHELL_IFELSE): New macro.
+ (AC_VAR_IF_SET): Use it.
+ (AC_CHECK_FUNC): Likewise.
+
+ * Makefile.in (${srcdir}/configure): Use autoconf.sh to build
+ Autoconf's configure. Before the building was performed running
+ m4 at hand, but much was not done (e.g., __oline__,
+ @BKL@... expansion)
+
1999-09-21 Ben Elliston <bje@cygnus.com>
* THANKS: Update some mail addresses.
if test -f standards.info || test -f $(srcdir)/standards.info; \
then cd $(infodir) && rm -f standards.info*; fi
-# Why don't we run ./autoconf here? There are substitutions performed
-# by autoconf which are necessary. Now, the Makefile breaks configure,
-# and one has to ./autoconf to have the right thing happen.
${srcdir}/configure: configure.in $(M4FILES)
- echo "FIXME: Why not running ./autoconf -m . ?"
cd $(srcdir) && \
rm -f configure configure.tmp && \
- $(M4) autoconf.m4 configure.in > configure.tmp && \
- chmod +x configure.tmp && mv configure.tmp configure
+ M4=$(M4) AC_MACRODIR=. AWK=$(AWK) \
+ $(SHELL) ./autoconf.sh
+
Makefile: Makefile.in config.status
$(SHELL) ./config.status
config.status: configure
-Major changes in release 2.14:
-
-* New macro AC_HELP_STRING to format an Autoconf macro's help string so
- that it looks pretty when the user executes `configure --help'. See
- the Texinfo documentation for details.
+Major changes in release 2.15:
+
+* config.status
+ - much faster on most architectures
+ - now has a useful --help
+ - concurrent executions
+ It is now safe to use `make -j' with configure.
+* New macros
+ - AC_CHECK_DECL and AC_CHECK_DECLS
+ To check whether a symbol is declared.
+ - AC_HELP_STRING
+ To format an Autoconf macro's help string so that it looks pretty
+ when the user executes `configure --help'.
+* Environment variables are kept when reconfiguring.
+ The previous scheme to set envvar before running configure was
+ ENV=VAL ./configure
+ what prevented configure from remembering the environment in which
+ it was run, therefore --recheck was run in an inconsistent environment.
+ Now, one runs
+ ./configure ENV=VAR
+ and the --recheck works correctly.
* Support for automatically determining a Fortran 77 compilers
name-mangling scheme. New CPP macros F77_FUNC and F77_FUNC_ are
provided to wrap C/C++ identifiers, thus making it easier and more
transparent for C/C++ to call Fortran 77 routines, and Fortran 77 to
call C/C++ routines. See the Texinfo documentation for details.
\f
+Major changes in release 2.14:
+ There was no release of GNU Autoconf 2.14.
+\f
Major changes in release 2.13:
* Support for building on Win32 systems where the only available C or
* Merge of the FSF version of config.guess and config.sub to modernise
these scripts. Add support for a few new hosts in config.guess.
Incorporate latest versions of install-sh, mkinstalldirs and
- texinfo.tex from the FSF.
+ texinfo.tex from the FSF.
* autoreconf is capable of running automake if necessary (and
applicable).
* Support for Fortran 77. See the Texinfo documentation for details.
* AC_CONFIG_HEADER expands shell variables in its argument.
* New macros: AC_FUNC_FNMATCH, AC_FUNC_SETPGRP.
* The "checking..." messages and the source code for test programs that
- fail are saved in config.log.
+ fail are saved in config.log.
* Another workaround has been added for seds with small command length limits.
* config.sub and config.guess recognize more system types.
* Bug fixes.
It would not be what it is today without the invaluable help of these
people:
-Aaron Crane <aaronc@pobox.com>
-Akim Demaille <akim@epita.fr>
-Alexandre Oliva <oliva@dcc.unicamp.br>
-Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
-Ben Elliston <bje@cygnus.com>
-Chris Provenzano <proven@cygnus.com>
-Christian Krone <krischan@sql.de>
-Dave Adams <adams@hpesdwa.fc.hp.com>
-Didier Verna <verna@inf.enst.fr>
-Doug Evans <dje@canuck.cygnus.com>
-Eric Mumpower <nocturne@mit.edu>
-Felix Lee <flee@cygnus.com>
-Gary V. Vaughan <gvaughan@oranda.demon.co.uk>
-Gordon Matzigkeit <gord@trick.fig.org>
-H.J. Lu <hjl@gnu.org>
-Ian Lance Taylor <ian@cygnus.com>
-J"orn Rennecke <amylaar@cygnus.co.uk>
-James A. Lupo <lupoja@feynman.ml.wpafb.af.mil>
-Jason Molenda <jsm@cygnus.com>
-Jeff Garzik <jgarzik@pobox.com>
-Jeffrey A Law (law@cygnus.com)
-Karl Berry <karl@cs.umb.edu>
-Matthew D. Langston <langston@SLAC.Stanford.EDU>
-Mike Stump <mrs@wrs.com>
-Miles Bader <miles@gnu.ai.mit.edu>
-Paul Eggert <eggert@twinsun.com>
-Pavel Roskin <pavel_roskin@geocities.com>
-Philipp Thomas <kthomas@gwdg.de>
-Richard Stallman <rms@gnu.org>
-Roland McGrath <roland@gnu.org>
-Scott Bambrough <scottb@corelcomputer.com>
-Steven G. Johnson <stevenj@alum.mit.edu>
-Stu Grossman <grossman@cygnus.com>
-Syd Polk <spolk@cygnus.com>
-Tom Tromey <tromey@cygnus.com>
+Aaron Crane aaronc@pobox.com
+Akim Demaille akim@epita.fr
+Alexandre Oliva oliva@dcc.unicamp.br
+Andreas Schwab schwab@issan.informatik.uni-dortmund.de
+Ben Elliston bje@cygnus.com
+Chris Provenzano proven@cygnus.com
+Christian Krone krischan@sql.de
+Dave Adams adams@hpesdwa.fc.hp.com
+Didier Verna verna@inf.enst.fr
+Doug Evans dje@canuck.cygnus.com
+Eric Mumpower nocturne@mit.edu
+Felix Lee flee@cygnus.com
+Gary V. Vaughan gvaughan@oranda.demon.co.uk
+Gordon Matzigkeit gord@trick.fig.org
+H.J. Lu hjl@gnu.org
+Ian Lance Taylor ian@cygnus.com
+J"orn Rennecke amylaar@cygnus.co.uk
+James A. Lupo lupoja@feynman.ml.wpafb.af.mil
+Jason Molenda jsm@cygnus.com
+Jeff Garzik jgarzik@pobox.com
+Jeffrey A Law law@cygnus.com
+Jim Blandy jimb@wookumz.gnu.ai.mit.edu
+Jim Meyering meyering@ascend.com
+Karl Berry karl@cs.umb.edu
+Kaveh R. Ghazi ghazi@caip.rutgers.edu
+Matthew D. Langston langston@SLAC.Stanford.EDU
+Mike Stump mrs@wrs.com
+Miles Bader miles@gnu.ai.mit.edu
+Noah Friedman friedman@gnu.ai.mit.edu
+Paul Eggert eggert@twinsun.com
+Pavel Roskin pavel_roskin@geocities.com
+Philipp Thomas kthomas@gwdg.de
+Richard Stallman rms@gnu.org
+Roland McGrath roland@gnu.org
+Scott Bambrough scottb@corelcomputer.com
+Steven G. Johnson stevenj@alum.mit.edu
+Stu Grossman grossman@cygnus.com
+Syd Polk spolk@cygnus.com
+Tom Tromey tromey@cygnus.com
Many people are not named here because we lost track of them. We
thank them! Please, help us keeping this list up to date.
dnl ifset(COND, IF-TRUE[, IF-FALSE])
dnl --------------------------------
dnl If COND is not the empty string, expand IF-TRUE, otherwise IF-FALSE.
+dnl Comparable to ifdef.
define([ifset], [ifelse([$1],,[$3],[$2])])
define(AC_PRO,
[define([AC_PROVIDE_$1], )dnl
ifelse(AC_DIVERSION_CURRENT, AC_DIVERSION_NORMAL,
-[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))],
+[AC_DIVERT_PUSH(m4_eval(AC_DIVERSION_CURRENT - 1))],
[pushdef([AC_DIVERSION_CURRENT], AC_DIVERSION_CURRENT)])dnl
])
dnl macros that are not involved in ordering constraints, to save m4
dnl processing.
dnl
-dnl If the REPLACED-FUNCTTION and ARGUMENT are defined, then declare that
+dnl If the REPLACED-FUNCTION and ARGUMENT are defined, then declare that
dnl NAME is a specialized version of REPLACED-FUNCTION when its first
dnl argument is ARGUMENT. For instance AC_TYPE_SIZE_T is a specialization
dnl of AC_CHECK_TYPE applied to `size_t'.
+dnl ### Some /bin/sh idioms
+
+dnl AC_SHELL_IFELSE(TEST[, IF-TRUE[, IF-FALSE]])
+dnl -------------------------------------------
+dnl Expand into
+dnl | if TEST; then
+dnl | IF-TRUE;
+dnl | else
+dnl | IF-FALSE
+dnl | fi
+dnl | with simplifications is IF-TRUE and/or IF-FALSE is empty.
+define([AC_SHELL_IFELSE],
+[ifset([$2$3],
+[if [$1]; then
+ ifset([$2], [$2], :)
+ifset([$3],
+[else
+ $3
+])dnl
+fi
+])])
+
+
dnl ### Common m4/sh handling of variables (indirections)
dnl AC_VAR_TEST_SET(VARIABLE)
dnl -------------------------
dnl Expands into the `test' expression which is true if VARIABLE
-dnl is set. Polymorphic.
+dnl is set. Polymorphic. Should be dnl'ed.
define(AC_VAR_TEST_SET,
[AC_VAR_IF_INDIR([$1],
[eval "test \"\${$1+set}\" = set"],
dnl Implement a shell `if-then-else' depending whether VARIABLE is set
dnl or not. Polymorphic.
define(AC_VAR_IF_SET,
-[if AC_VAR_TEST_SET([$1]); then
- ifelse([$2], , :, [$2])
-ifelse([$3], , ,
-[else
- $3
-])dnl
-fi
-])
+[AC_SHELL_IFELSE(AC_VAR_TEST_SET([$1]), [$2], [$3])])
+
dnl AC_VAR_PUSHDEF and AC_VAR_POPDEF
dnl --------------------------------
dnl Forbid appearence of `-' in FROM elsewhere than in the last position,
dnl since we might otherwise trigger a GNU m4 bug (version 1.4 included).
dnl ALPHABET may contain characters interval.
-define(AC_TR,
-[ifelse(regexp([$2$3], [%]), -1,,
- [AC_FATAL([$0: `%' cannot be used. Change the definition of $0])])dnl
-ifelse(regexp([$2], [-]), -1,, len([$2]),,
- [AC_FATAL([$0: `-' cannot be used but in the last position.])])dnl
-ifelse(len([$2]), len([$3]),,
- [AC_FATAL([$0: argument 2 and 3 should have the same length])])dnl
-AC_VAR_IF_INDIR([$1],
- [`echo "$1" | sed 'y%$2%$3%;s%[^$4]%$5%g'`],
- [patsubst(translit([$1], [$2], [$3]),
- [[^$4]], [$5])])])
-
-dnl AC_TR_DEFINE(EXPRESSION)
-dnl ------------------------
+dnl define(AC_TR,
+dnl [ifelse(regexp([$2$3], [%]), -1,,
+dnl [AC_FATAL([$0: `%' cannot be used. Change the definition of $0])])dnl
+dnl ifelse(regexp([$2], [-]), -1,, len([$2]),,
+dnl [AC_FATAL([$0: `-' cannot be used but in the last position.])])dnl
+dnl ifelse(len([$2]), len([$3]),,
+dnl [AC_FATAL([$0: argument 2 and 3 should have the same length])])dnl
+dnl AC_VAR_IF_INDIR([$1],
+dnl [`echo "$1" | sed 'y%$2%$3%;s%[^$4]%$5%g'`],
+dnl [patsubst(translit([$1], [$2], [$3]),
+dnl [[^$4]], [$5])])])
+
+dnl AC_TR_CPP(EXPRESSION)
+dnl ---------------------
dnl Map EXPRESSION to an upper case string which is valid as rhs for a
-dnl `#define'. sh/m4 polymorphic.
-define(AC_TR_DEFINE,
-[AC_TR([$1],
- [*abcdefghijklmnopqrstuvwxyz],
- [PABCDEFGHIJKLMNOPQRSTUVWXYZ],
- [A-Z0-9_],
- [_])])
+dnl `#define'. sh/m4 polymorphic. Make sure to update the definition
+dnl of `$ac_tr_cpp' if you change this.
+define(AC_TR_CPP,
+[AC_VAR_IF_INDIR([$1],
+ [`echo "$1" | $ac_tr_cpp`],
+ [patsubst(translit([$1],
+ [*abcdefghijklmnopqrstuvwxyz],
+ [PABCDEFGHIJKLMNOPQRSTUVWXYZ]),
+ [A-Z0-9_], [_])])])
dnl AC_TR_SH(EXPRESSION)
dnl sh/m4 polymorphic. Because of a delicate problem of quoting,
dnl we cannot use the definition we had before:
dnl AC_TR([$1],[*+], [pp], [a-zA-Z0-9_], [_])
+dnl Make sure to update the definition of `$ac_tr_cpp' if you change this.
define(AC_TR_SH,
[AC_VAR_IF_INDIR([$1],
[`echo "$1" | $ac_tr_sh`],
[patsubst(translit([$1], [*+], [pp]),
- [[^a-zA-Z0-9_]], [_])])])
+ [[^a-zA-Z0-9_]], [_])])])
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12
-# Sed expression to map a string onto a valid sh variable name
+# Sed expression to map a string onto a valid sh and CPP variable names.
changequote(, )dnl
ac_tr_sh='sed -e y%*+%pp%;s%[^a-zA-Z0-9_]%_%g'
+ac_tr_cpp='sed -e y%*abcdefghijklmnopqrstuvwxyz%PABCDEFGHIJKLMNOPQRSTUVWXYZ%;s%[^A-Z0-9_]%_%g'
changequote([, ])dnl
ac_prev=
dnl AC_INCLUDE
AC_DEFUN(AC_INCLUDE,
[ifelse($1, [], [], [dnl
- esyscmd([for file in $1; do echo "builtin(include,$file)dnl"; done])dnl
+ esyscmd([for file in $1; do echo "m4_include($file)dnl"; done])dnl
])])
dnl AC_INIT_PREPARE(UNIQUE-FILE-IN-SOURCE-DIR)
dnl AC_PREREQ_COMPARE(MAJOR1, MINOR1, TERNARY1, MAJOR2, MINOR2, TERNARY2,
dnl PRINTABLE2)
define(AC_PREREQ_COMPARE,
-[ifelse(builtin([eval],
-[$3 + $2 * 1000 + $1 * 1000000 < $6 + $5 * 1000 + $4 * 1000000]), 1,
-[AC_FATAL(Autoconf version $7 or higher is required for this script)])])
+[ifelse(
+ m4_eval([$3 + $2 * 1000 + $1 * 1000000 < $6 + $5 * 1000 + $4 * 1000000]),
+ 1, [AC_FATAL(Autoconf version $7 or higher is required for this script)])])
dnl Complain and exit if the Autoconf version is less than VERSION.
dnl AC_PREREQ(VERSION)
dnl ------------------------------------------
dnl
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
+dnl Should be dnl'ed.
define(AC_CACHE_VAL,
[dnl We used to use the below line, but it fails if the 1st arg is a
dnl shell variable, so we need the eval.
[$2])])
dnl AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
+dnl -------------------------------------------
dnl Do not call this macro with a dnl right behind.
define(AC_CACHE_CHECK,
[AC_MSG_CHECKING([$1])
-AC_CACHE_VAL([$2], [$3])
+AC_CACHE_VAL([$2], [$3])dnl
AC_MSG_RESULT_UNQUOTED(AC_VAR_GET([$2]))])
dnl ### Defining symbols
-dnl Set VARIABLE to VALUE, verbatim, or 1.
-dnl AC_DEFINE(VARIABLE [, VALUE])
+dnl AC_DEFINE(VARIABLE [, VALUE[, DESCRIPTION]])
+dnl --------------------------------------------
+dnl Set VARIABLE to VALUE, verbatim, or 1. Remember the value
+dnl and if VARIABLE is affected the same VALUE, do nothing, else
+dnl die. The third argument is used by autoheader.
define(AC_DEFINE,
[cat >> confdefs.h <<\EOF
[#define] $1 ifelse($#, 2, [$2], $#, 3, [$2], 1)
EOF
])
+dnl AC_DEFINE_UNQUOTED(VARIABLE [, VALUE[, DESCRIPTION]])
+dnl -----------------------------------------------------
dnl Similar, but perform shell substitutions $ ` \ once on VALUE.
define(AC_DEFINE_UNQUOTED,
[cat >> confdefs.h <<EOF
dnl ### Printing messages at autoconf run time
-dnl _AC_MESSAGE(MESSAGE)
+dnl _AC_ERRPRINT(MESSAGE)
dnl Report the MESSAGE at m4 time, with line and filename.
-define(_AC_MESSAGE, [errprint(__file__:__line__: [$1
+define(_AC_ERRPRINT, [errprint(__file__:__line__: [$1
])])
dnl AC_WARNING(MESSAGE)
-define(AC_WARNING, [_AC_MESSAGE([warning: $1])])
+define(AC_WARNING, [_AC_ERRPRINT([warning: $1])])
dnl AC_FATAL(MESSAGE [, EXIT-STATUS])
define(AC_FATAL,
-[_AC_MESSAGE([error: $1])
+[_AC_ERRPRINT([error: $1])
m4exit(ifdef([$2], [$2], 1))])
dnl Expands into a sh call to echo onto FD (default is AC_FD_MSG).
dnl The shell perform its expansions on STRING.
define([_AC_ECHO_UNQUOTED],
-[echo "$1" 1>&ifelse($2,, AC_FD_MSG, $2)])
+[echo "[$1]" 1>&ifelse($2,, AC_FD_MSG, $2)])
dnl _AC_ECHO(STRING [ , FD ])
dnl Expands into a sh call to echo onto FD (default is AC_FD_MSG),
define(AC_MSG_ERROR,
[{ _AC_ECHO([configure: error: $1], 2); exit 1; }])
+dnl AC_MSG_ERROR_UNQUOTED(ERROR-DESCRIPTION)
+define(AC_MSG_ERROR_UNQUOTED,
+[{ _AC_ECHO_UNQUOTED([configure: error: $1], 2); exit 1; }])
+
dnl ### Selecting which language to use for testing
dnl AC_REQUIRE(MACRO-NAME)
define(AC_REQUIRE,
[ifdef([AC_PROVIDE_$1], ,
-[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
+[AC_DIVERT_PUSH(m4_eval(AC_DIVERSION_CURRENT - 1))dnl
indir([$1])
AC_DIVERT_POP()dnl
])])
dnl AC_TRY_LINK_FUNC(func, action-if-found, action-if-not-found)
+dnl ------------------------------------------------------------
dnl Try to link a program that calls FUNC, handling GCC builtins. If
dnl the link succeeds, execute ACTION-IF-FOUND; otherwise, execute
dnl ACTION-IF-NOT-FOUND.
dnl Search for a library defining FUNC, if it's not already available.
AC_DEFUN(AC_SEARCH_LIBS,
-[AC_PREREQ([2.13])
-AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
+[AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
[ac_func_search_save_LIBS="$LIBS"
ac_cv_search_$1="no"
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"])
dnl AC_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
-AC_DEFUN(AC_CHECK_LIB,
-[AC_MSG_CHECKING([for $2 in -l$1])
dnl Use a cache variable name containing both the library and function name,
dnl because the test really is for library $1 defining function $2, not
dnl just for library $1. Separate tests with the same $1 and different $2s
dnl may have different results.
-ac_lib_var=`echo $1['_']$2 | sed 'y%./+-:%__p__%'`
-AC_CACHE_VAL(ac_cv_lib_$ac_lib_var,
+AC_DEFUN(AC_CHECK_LIB,
+[AC_VAR_PUSHDEF([ac_var], [ac_cv_lib_$1_$2])dnl
+AC_CACHE_CHECK([for $2 in -l$1], ac_var,
[ac_save_LIBS="$LIBS"
LIBS="-l$1 $5 $LIBS"
AC_TRY_LINK(dnl
builtin and then its argument prototype would still apply. */
char $2();
])),
- [$2()],
- eval "ac_cv_lib_$ac_lib_var=yes",
- eval "ac_cv_lib_$ac_lib_var=no")
-LIBS="$ac_save_LIBS"
-])dnl
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
- AC_MSG_RESULT(yes)
- ifelse([$3], ,
-[changequote(, )dnl
- ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
- -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-changequote([, ])dnl
- AC_DEFINE_UNQUOTED($ac_tr_lib)
+[$2()],
+AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))
+LIBS="$ac_save_LIBS"])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_LIB$1))
LIBS="-l$1 $LIBS"
-], [$3])
-else
- AC_MSG_RESULT(no)
-ifelse([$4], , , [$4
-])dnl
-fi
-])
+ $3],
+ [$4])dnl
+AC_VAR_POPDEF([ac_var])dnl
+])dnl AC_CHECK_LIB
dnl AC_HAVE_LIBRARY(LIBRARY, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
+dnl FIXME: Remove
AC_DEFUN(AC_HAVE_LIBRARY,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_LIB])dnl
changequote(<<, >>)dnl
AC_MSG_RESULT($AC_CV_NAME)
if test "$AC_CV_NAME" = yes; then
ifelse([$2], ,
-[AC_DEFINE([HAVE_LIB]AC_TR_DEFINE(AC_LIB_NAME))
+[AC_DEFINE([HAVE_LIB]AC_TR_CPP(AC_LIB_NAME))
LIBS="-l[]AC_LIB_NAME[] $LIBS"
], [$2])
ifelse([$3], , , [else
dnl AC_CHECK_HEADER(HEADER-FILE, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_HEADER,
-[dnl Do the transliteration at runtime so arg 1 can be a shell variable.
-ac_safe=`echo "$1" | sed 'y%./+-%__p_%'`
-AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(ac_cv_header_$ac_safe,
-[AC_TRY_CPP([#include <$1>], eval "ac_cv_header_$ac_safe=yes",
- eval "ac_cv_header_$ac_safe=no")])dnl
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
- AC_MSG_RESULT(yes)
- ifelse([$2], , :, [$2])
-else
- AC_MSG_RESULT(no)
-ifelse([$3], , , [$3
-])dnl
-fi
-])
-
-dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+[AC_VAR_PUSHDEF([ac_var_header], [ac_cv_header_$1])dnl
+AC_CACHE_CHECK([for $1], ac_var_header,
+[AC_TRY_CPP([#include <$1>],
+AC_VAR_SET(ac_var_header, yes), AC_VAR_SET(ac_var_header, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var_header) = yes,
+ [$2], [$3])dnl
+AC_VAR_POPDEF([ac_var_header])dnl
+])dnl AC_CHECK_HEADER
+
+dnl AC_CHECK_HEADERS(HEADER-FILE...
+dnl [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_HEADERS,
-[for ac_hdr in $1
+[for ac_header in $1
do
-AC_CHECK_HEADER($ac_hdr,
-[changequote(, )dnl
- ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-changequote([, ])dnl
- AC_DEFINE_UNQUOTED($ac_tr_hdr) $2], $3)dnl
+AC_CHECK_HEADER($ac_header,
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_$ac_header)) $2],
+ [$3])dnl
done
])
AC_DEFUN(AC_CHECK_FILES,
[AC_FOREACH([AC_FILE_NAME], [$1],
[AC_SPECIALIZE([AC_CHECK_FILE], AC_FILE_NAME,
- [AC_DEFINE_UNQUOTED(AC_TR_DEFINE(HAVE_[]AC_FILE_NAME))
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_[]AC_FILE_NAME))
$2],
[$3])])])
dnl [for ac_file in $1
dnl do
dnl AC_CHECK_FILE($ac_file,
-dnl [AC_DEFINE_UNQUOTED(AC_TR_DEFINE(HAVE_$ac_file)) $2],
+dnl [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_$ac_file)) $2],
dnl [$3])dnl
dnl done
dnl ])
+dnl ### Checking for declared symbols
+
+
+dnl AC_CHECK_DECL(SYMBOL, [, INCLUDES,
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl --------------------------------------------------------
+dnl Check if SYMBOL (a variable or a function) is declared.
+AC_DEFUN([AC_CHECK_DECL],
+[AC_VAR_PUSHDEF([ac_var], [ac_cv_decl_$1])dnl
+AC_CACHE_CHECK([whether $1 is declared], ac_var,
+[AC_TRY_COMPILE($2,
+[#ifndef $1
+char *p = (char *) $1;
+#endif
+],
+AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+ [$3], [$4])dnl
+AC_VAR_POPDEF([ac_var])dnl
+])dnl AC_CHECK_DECL
+
+dnl AC_CHECK_DECL(SYMBOL... , [, INCLUDES,
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+AC_DEFUN(AC_CHECK_DECLS,
+[for ac_sym in $1
+do
+AC_CHECK_DECL($ac_sym,
+ [$2],
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(${ac_sym}_DECLARED)) $3],
+ [$4])dnl
+done
+])
+
dnl ### Checking for library functions
f = $1;
#endif
], AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))])
-dnl The ridiculous following `:' are coming from the fact that we
-dnl need to have a body for these tests, otherwise some shells will
-dnl die. FIXME: We should write a macro specifically to handle this kind
-dnl of switches, since they are very common in Autoconf.
-if test AC_VAR_GET(ac_var) = yes; then
- :
-ifset([$2], [ $2
-])dnl
-else
- :
-ifset([$3], [ $3
-])dnl
-fi
-AC_VAR_POPDEF([ac_var])])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+ [$2], [$3])dnl
+AC_VAR_POPDEF([ac_var])dnl
+])dnl AC_CHECK_FUNC
dnl AC_CHECK_FUNCS(FUNCTION... [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_FUNCS,
[for ac_func in $1
do
AC_CHECK_FUNC($ac_func,
- [AC_DEFINE_UNQUOTED(AC_TR_DEFINE(HAVE_$ac_func)) $2],
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_$ac_func)) $2],
[$3])dnl
done
])
AC_VAR_SET(ac_var, `cat conftestval`),
AC_VAR_SET(ac_var, 0),
ifset([$2], AC_VAR_SET(ac_var, $2)))])
-AC_DEFINE_UNQUOTED(AC_TR_DEFINE(sizeof_$1), AC_VAR_GET(ac_var))
+AC_DEFINE_UNQUOTED(AC_TR_CPP(sizeof_$1), AC_VAR_GET(ac_var))
AC_VAR_POPDEF([ac_var])dnl
])
dnl AC_CHECK_TYPE(TYPE, DEFAULT)
+dnl FIXME: This is an extremely badly choosen name, since this
+dnl macro actually performs an AC_REPLACE_TYPE. Some day we
+dnl have to clean this up.
AC_DEFUN(AC_CHECK_TYPE,
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_MSG_CHECKING(for $1)
: \${CONFIG_FILES="$1"}
ifdef([AC_LIST_HEADER], [: \${CONFIG_HEADERS=AC_LIST_HEADER}
])dnl
-rm -fr \`echo "\$CONFIG_FILES ifdef([AC_LIST_HEADER], \$CONFIG_HEADERS)" | sed "s/:@BKL@^ @BKR@*//g"\`
+rm -fr \`echo "\$CONFIG_FILES" | sed "s/:@BKL@^ @BKR@*//g"\`
trap 'rm -fr \$confstat*; exit 1' 1 2 15
EOF
dnl The following three sections are in charge of their own here
changequote([, ])dnl
if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
# The file is in a subdirectory.
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
test ! -d "$ac_dir" && mkdir "$ac_dir"
ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
# A "../" for each directory in $ac_dir_suffix.
changequote([, ])dnl
if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
# The file is in a subdirectory.
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
test ! -d "$ac_dir" && mkdir "$ac_dir"
fi
rm -f $ac_file
changequote([, ])dnl
if test "$ac_dest_dir" != "$ac_dest" && test "$ac_dest_dir" != .; then
# The dest file is in a subdirectory.
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
test ! -d "$ac_dest_dir" && mkdir "$ac_dest_dir"
ac_dest_dir_suffix="/`echo $ac_dest_dir|sed 's%^\./%%'`"
# A "../" for each directory in $ac_dest_dir_suffix.
fi
done
EOF
-])
+])dnl AC_OUTPUT_LINKS
dnl This is a subroutine of AC_OUTPUT.
dnl It is called after running config.status.
case "$srcdir" in
.) ;;
*)
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
if test -d ./$ac_config_dir || mkdir ./$ac_config_dir; then :;
else
AC_MSG_ERROR(cannot create `pwd`/$ac_config_dir)
dnl must be a space separated list of Fortran 77 compilers to search
dnl for. This just gives the user an opportunity to specify an
dnl alternative search list for the Fortran 77 compiler.
-dnl
+dnl
dnl AC_PROG_F77()
AC_DEFUN(AC_PROG_F77,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
dnl Fortran program. Also, test whether the Fortran 77 compiler is a
dnl cross-compiler (which may realistically be the case if the Fortran
dnl compiler is `g77').
-dnl
+dnl
dnl AC_PROG_F77_WORKS()
AC_DEFUN(AC_PROG_F77_WORKS,
[AC_MSG_CHECKING([whether the Fortran 77 compiler ($F77 $FFLAGS $LDFLAGS) works])
dnl Test whether for Fortran 77 compiler is `g77' (the GNU Fortran 77
dnl Compiler). This test depends on whether the Fortran 77 compiler can
dnl do CPP pre-processing.
-dnl
+dnl
dnl AC_PROG_F77_GNU()
AC_DEFUN(AC_PROG_F77_GNU,
[AC_CACHE_CHECK(whether we are using GNU Fortran 77, ac_cv_prog_g77,
dnl Test whether the Fortran 77 compiler can accept the `-g' option to
dnl enable debugging.
-dnl
+dnl
dnl AC_PROG_F77_G()
AC_DEFUN(AC_PROG_F77_G,
[AC_CACHE_CHECK(whether $F77 accepts -g, ac_cv_prog_f77_g,
dnl The usefulness of this macro is questionable, as I can't really see
dnl why anyone would use it. The only reason I include it is for
dnl completeness, since a similar test exists for the C compiler.
-dnl
+dnl
dnl AC_PROG_F77_C_O
AC_DEFUN(AC_PROG_F77_C_O,
[AC_BEFORE([$0], [AC_PROG_F77])dnl
AC_DEFUN(AC_FUNC_STRFTIME,
[AC_CHECK_FUNC(strftime, [AC_DEFINE(HAVE_STRFTIME)],
[# strftime is in -lintl on SCO UNIX.
-AC_CHECK_LIB(intl, strftime,
+AC_CHECK_LIB(intl, strftime,
[AC_DEFINE(HAVE_STRFTIME)
LIBS="-lintl $LIBS"])])])
])dnl AC_CACHE_VAL
])dnl AC_CACHE_VAL
if test "$ac_not_found" = yes; then
- ac_cv_func_select_arg1=int
- ac_cv_func_select_arg234='int *'
+ ac_cv_func_select_arg1=int
+ ac_cv_func_select_arg234='int *'
ac_cv_func_select_arg5='struct timeval *'
fi
AC_MSG_RESULT([$ac_cv_func_select_arg1,$ac_cv_func_select_arg234,$ac_cv_func_select_arg5])
[#ifdef _AIX
yes
#endif
-], [AC_MSG_RESULT(yes); AC_DEFINE(_ALL_SOURCE)], AC_MSG_RESULT(no))
+],
+[AC_MSG_RESULT(yes)
+AC_DEFINE(_ALL_SOURCE)],
+AC_MSG_RESULT(no))
])
AC_DEFUN(AC_MINIX,
#! @SHELL@
# autoconf -- create `configure' using m4 macros
-# Copyright (C) 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
+# Copyright (C) 1992, 1993, 1994, 1996, 1999 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
sed -n "s/^[^#]*\\(${pattern}[_A-Za-z0-9]*\\).*/\\1/p" $tmpout |
while read macro; do
grep -n "^[^#]*$macro" $infile /dev/null
- test $? -eq 1 && echo >&2 "***BUG in Autoconf--please report*** $macro"
+ test $? -eq 1 && echo "***BUG in Autoconf--please report*** $macro"
done | sort -u >&2
status=1
fi
s/@BKL@/[/g
s/@BKR@/]/g
s/@DLR@/$/g
+s/@PND@/#/g
' >&4
rm -f $tmpout
* Preprocessor Symbol Index:: Index of C preprocessor symbols defined
* Macro Index:: Index of Autoconf macros
-@detailmenu
- --- The Detailed Node Listing ---
+@detailmenu --- The Detailed Node Listing ---
Making @code{configure} Scripts
* Libraries:: Library archives that might be missing
* Library Functions:: C library functions that might be missing
* Header Files:: Header files that might be missing
+* Declarations:: Declarations that may be missing
* Structures:: Structures or members that might be missing
* Typedefs:: @code{typedef}s that might be missing
* C Compiler Characteristics::
* Particular Headers:: Special handling to find certain headers
* Generic Headers:: How to find other headers
+Declarations
+
+* Particular Declarations:: Macros to check for certain declarations
+* Generic Declarations:: How to find other declarations
+
Structures
* Particular Structures:: Macros to check for certain stucture members
@end defmac
Small packages may store all their macros in @code{aclocal.m4}. As the
-set of macros grows, or for maintenance reasons, a maintainer may prefer
+set of macros grows, or for maintenance reasons, a maintainer may prefer
to split the macros in several files. In this case, Autoconf must be
told which files to load, and in which order.
-@defmac AC_INCLUDE (@var{file(s)})
+@defmac AC_INCLUDE (@var{file}...)
@maindex AC_INCLUDE
Read the macro definitions that appear in the listed files. A list of
space-separated filenames or shell globbing patterns is expected. The
* Libraries:: Library archives that might be missing
* Library Functions:: C library functions that might be missing
* Header Files:: Header files that might be missing
+* Declarations:: Declarations that may be missing
* Structures:: Structures or members that might be missing
* Typedefs:: @code{typedef}s that might be missing
* C Compiler Characteristics::
redeclare it, lest your declaration conflict.
@end defmac
-@node Header Files, Structures, Library Functions, Existing Tests
+@node Header Files, Declarations, Library Functions, Existing Tests
@section Header Files
The following macros check for the presence of certain C header files.
These macros check for particular system header files---whether they
exist, and in some cases whether they declare certain symbols.
-@defmac AC_DECL_SYS_SIGLIST
-@maindex DECL_SYS_SIGLIST
-@cvindex SYS_SIGLIST_DECLARED
-Define @code{SYS_SIGLIST_DECLARED} if the variable @code{sys_siglist} is
-declared in a system header file, either @file{signal.h} or
-@file{unistd.h}.
+@defmac AC_HEADER_STAT
+@maindex HEADER_STAT
+@maindex STAT_MACROS_BROKEN
+If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in
+@file{sys/stat.h} do not work properly (returning false positives),
+define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV,
+Amdahl UTS and Motorola System V/88.
+@end defmac
+
+@defmac AC_HEADER_TIME
+@maindex HEADER_TIME
+@cvindex TIME_WITH_SYS_TIME
+If a program may include both @file{time.h} and @file{sys/time.h},
+define @code{TIME_WITH_SYS_TIME}. On some older systems,
+@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not
+protected against multiple inclusion, so programs should not explicitly
+include both files. This macro is useful in programs that use, for
+example, @code{struct timeval} or @code{struct timezone} as well as
+@code{struct tm}. It is best used in conjunction with
+@code{HAVE_SYS_TIME_H}, which can be checked for using
+@code{AC_CHECK_HEADERS(sys/time.h)}.
+
+@example
+@group
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+@end group
+@end example
@end defmac
@defmac AC_DIR_HEADER
is executed when one of the header files is not found.
@end defmac
-@node Structures, Typedefs, Header Files, Existing Tests
+@node Declarations, Structures, Header Files, Existing Tests
+@section Declarations
+
+The following macros check for the declaration of variables and
+functions. If there is no macro specifically defined to check for a
+symbol you need, then you can use the general macro (@pxref{Generic
+Declarations}) or, for more complex tests, you may use
+@code{AC_TRY_COMPILE} (@pxref{Examining Syntax}).
+
+@menu
+* Particular Declarations:: Macros to check for certain declarations
+* Generic Declarations:: How to find other declarations
+@end menu
+
+@node Particular Declarations, Generic Declarations, Declarations, Declarations
+@subsection Particular Declaration Checks
+
+The following macros check for certain declarations.
+
+@defmac AC_DECL_SYS_SIGLIST
+@maindex DECL_SYS_SIGLIST
+@cvindex SYS_SIGLIST_DECLARED
+Define @code{SYS_SIGLIST_DECLARED} if the variable @code{sys_siglist}
+is declared in a system header file, either @file{signal.h} or
+@file{unistd.h}.
+@end defmac
+
+@node Generic Declarations, , Particular Declarations, Declarations
+@subsection Generic Declaration Checks
+
+These macros are used to find declarations not covered by the particular
+test macros.
+
+@defmac AC_CHECK_DECL (@var{symbol}, @r{[}@var{includes}, @r{[}@var{action-if-found} @r{[}, @var{action-if-not-found}@r{]]]})
+@maindex CHECK_DECL
+If @var{symbol} (a function or a variable) is declared in
+@var{includes}, run shell commands @var{action-if-found}, otherwise
+@var{action-if-not-found}.
+@end defmac
+
+@defmac AC_CHECK_DECLS (@var{symbol}@dots{}, @r{[}@var{includes} @r{[}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]]]})
+@maindex CHECK_DECLS
+@cvindex @var{symbol}_DECLARED
+For each given @var{symbol} (whitespace-separated), define
+@code{@var{symbol}_DECLARED} (in all capitals) if @var{symbol} is
+declared. If @var{action-if-found} is given, it is additional shell
+code to execute when one of the function declarations is found,
+otherwise @var{action-if-not-found} is executed.
+@end defmac
+
+
+@node Structures, Typedefs, Declarations, Existing Tests
@section Structures
The following macros check for the presence of certain members in C
The following macros check for certain structures or structure members.
-@defmac AC_HEADER_STAT
-@maindex HEADER_STAT
-@maindex STAT_MACROS_BROKEN
-If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in
-@file{sys/stat.h} do not work properly (returning false positives),
-define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV,
-Amdahl UTS and Motorola System V/88.
-@end defmac
-
-@defmac AC_HEADER_TIME
-@maindex HEADER_TIME
-@cvindex TIME_WITH_SYS_TIME
-If a program may include both @file{time.h} and @file{sys/time.h},
-define @code{TIME_WITH_SYS_TIME}. On some older systems,
-@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not
-protected against multiple inclusion, so programs should not explicitly
-include both files. This macro is useful in programs that use, for
-example, @code{struct timeval} or @code{struct timezone} as well as
-@code{struct tm}. It is best used in conjunction with
-@code{HAVE_SYS_TIME_H}, which can be checked for using
-@code{AC_CHECK_HEADERS(sys/time.h)}.
-
-@example
-@group
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-@end group
-@end example
-@end defmac
-
@defmac AC_STRUCT_ST_BLKSIZE
@maindex STRUCT_ST_BLKSIZE
@cvindex HAVE_ST_BLKSIZE
dnl Driver and redefinitions of some Autoconf macros for autoheader.
dnl This file is part of Autoconf.
-dnl Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+dnl Copyright (C) 1994, 1995, 1999 Free Software Foundation, Inc.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl Written by Roland McGrath.
dnl
include(acgeneral.m4)dnl
-builtin(include, acspecific.m4)dnl
-builtin(include, acoldnames.m4)dnl
+m4_include(acspecific.m4)dnl
+m4_include(acoldnames.m4)dnl
dnl These are alternate definitions of some macros, which produce
dnl strings in the output marked with "@@@" so we can easily extract
])
])
+define([AC_CHECK_DECLS], [#
+ ifelse([$3], , [
+@@@decls="$decls $1"@@@
+], [
+# If it was found, we do:
+$3
+# If it was not found, we do:
+$4
+])
+])
+
define([AC_HAVE_LIBRARY], [#
changequote(<<, >>)dnl
define(<<AC_LIB_NAME>>, dnl
test -f "${M4}" || M4=m4 ;;
esac
-ac_LF_and_DOT="`echo; echo .`"
-
localdir=.
show_version=no
funcs=
headers=
libs=
+decls=
if test "$localdir" != .; then
use_localdir="-I$localdir -DAC_LOCALDIR=$localdir"
*) echo Autoconf requires GNU m4 1.1 or later >&2; exit 1 ;;
esac
-# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, and LIBS from the
-# modified autoconf processing of the input file. The sed hair is
-# necessary to win for multi-line macro invocations.
+# Extract assignments of SYMS, TYPES, FUNCS, HEADERS, LIBS and DECLS
+# from the modified autoconf processing of the input file. The sed
+# hair is necessary to win for multi-line macro invocations.
eval "`$M4 -I$AC_MACRODIR $use_localdir $r autoheader.m4$f $infile |
sed -n -e '
: again
EOF
fgrep -f $fgrep_tmp
rm -f $fgrep_tmp) |
- tr @. "$ac_LF_and_DOT"
+ tr @. "`echo; echo .`"
# We use echo to avoid assuming a particular line-breaking character.
# The extra dot is to prevent the shell from consuming trailing
# line-breaks from the sub-command output. A line-break within
# would break.
fi
-echo "$types" | tr ,. "$ac_LF_and_DOT" | sort | uniq | while read ctype; do
+echo "$types" | tr ,. "`echo`." | sort | uniq | while read ctype; do
test -z "$ctype" && continue
sym="`echo "${ctype}" | tr 'abcdefghijklmnopqrstuvwxyz *' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_P'`"
echo "
done
fi
+if test -n "$decls"; then
+ for decl in `for x in $decls; do echo $x; done | sort | uniq`; do
+ sym="`echo ${decl} | sed 's/[^a-zA-Z0-9_]/_/g' | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`"
+ echo "
+/* Define if you have the \`${decl}' declaration. */
+#undef ${sym}_DECLARED"
+ done
+fi
+
if test -n "$verbatim"; then
echo "$verbatim"
fi
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12
-# Sed expression to map a string onto a valid sh variable name
+# Sed expression to map a string onto a valid sh and CPP variable names.
ac_tr_sh='sed -e y%*+%pp%;s%[^a-zA-Z0-9_]%_%g'
+ac_tr_cpp='sed -e y%*abcdefghijklmnopqrstuvwxyz%PABCDEFGHIJKLMNOPQRSTUVWXYZ%;s%[^A-Z0-9_]%_%g'
ac_prev=
for ac_option
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word... $ac_c" 1>&6
-echo "configure:590: checking for $ac_word" 1>&5
+echo "configure:591: checking for $ac_word" 1>&5
if test "${ac_cv_path_M4+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word... $ac_c" 1>&6
-echo "configure:631: checking for $ac_word" 1>&5
+echo "configure:632: checking for $ac_word" 1>&5
if test "${ac_cv_prog_AWK+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "perl", so it can be a program name with args.
set dummy perl; ac_word=$2
echo $ac_n "checking for $ac_word... $ac_c" 1>&6
-echo "configure:664: checking for $ac_word" 1>&5
+echo "configure:665: checking for $ac_word" 1>&5
if test "${ac_cv_path_PERL+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
echo $ac_n "checking for a BSD compatible install... $ac_c" 1>&6
-echo "configure:734: checking for a BSD compatible install" 1>&5
+echo "configure:735: checking for a BSD compatible install" 1>&5
if test -z "$INSTALL"; then
if test "${ac_cv_path_install+set}" = set; then
echo $ac_n "(cached) $ac_c" 1>&6
cat >> $CONFIG_STATUS <<EOF
: \${CONFIG_FILES="Makefile testsuite/Makefile"}
-rm -fr \`echo "\$CONFIG_FILES " | sed "s/:[^ ]*//g"\`
+rm -fr \`echo "\$CONFIG_FILES" | sed "s/:[^ ]*//g"\`
trap 'rm -fr \$confstat*; exit 1' 1 2 15
EOF
cat >>$CONFIG_STATUS <<EOF
ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
# The file is in a subdirectory.
- test ! -d "$ac_dir" && mkdir "$ac_dir"
+ test ! -d "$ac_dir" && mkdir "$ac_dir"
ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
# A "../" for each directory in $ac_dir_suffix.
ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
if test -f standards.info || test -f $(srcdir)/standards.info; \
then cd $(infodir) && rm -f standards.info*; fi
-# Why don't we run ./autoconf here? There are substitutions performed
-# by autoconf which are necessary. Now, the Makefile breaks configure,
-# and one has to ./autoconf to have the right thing happen.
${srcdir}/configure: configure.in $(M4FILES)
- echo "FIXME: Why not running ./autoconf -m . ?"
cd $(srcdir) && \
rm -f configure configure.tmp && \
- $(M4) autoconf.m4 configure.in > configure.tmp && \
- chmod +x configure.tmp && mv configure.tmp configure
+ M4=$(M4) AC_MACRODIR=. AWK=$(AWK) \
+ $(SHELL) ./autoconf.sh
+
Makefile: Makefile.in config.status
$(SHELL) ./config.status
config.status: configure
* Preprocessor Symbol Index:: Index of C preprocessor symbols defined
* Macro Index:: Index of Autoconf macros
-@detailmenu
- --- The Detailed Node Listing ---
+@detailmenu --- The Detailed Node Listing ---
Making @code{configure} Scripts
* Libraries:: Library archives that might be missing
* Library Functions:: C library functions that might be missing
* Header Files:: Header files that might be missing
+* Declarations:: Declarations that may be missing
* Structures:: Structures or members that might be missing
* Typedefs:: @code{typedef}s that might be missing
* C Compiler Characteristics::
* Particular Headers:: Special handling to find certain headers
* Generic Headers:: How to find other headers
+Declarations
+
+* Particular Declarations:: Macros to check for certain declarations
+* Generic Declarations:: How to find other declarations
+
Structures
* Particular Structures:: Macros to check for certain stucture members
@end defmac
Small packages may store all their macros in @code{aclocal.m4}. As the
-set of macros grows, or for maintenance reasons, a maintainer may prefer
+set of macros grows, or for maintenance reasons, a maintainer may prefer
to split the macros in several files. In this case, Autoconf must be
told which files to load, and in which order.
-@defmac AC_INCLUDE (@var{file(s)})
+@defmac AC_INCLUDE (@var{file}...)
@maindex AC_INCLUDE
Read the macro definitions that appear in the listed files. A list of
space-separated filenames or shell globbing patterns is expected. The
* Libraries:: Library archives that might be missing
* Library Functions:: C library functions that might be missing
* Header Files:: Header files that might be missing
+* Declarations:: Declarations that may be missing
* Structures:: Structures or members that might be missing
* Typedefs:: @code{typedef}s that might be missing
* C Compiler Characteristics::
redeclare it, lest your declaration conflict.
@end defmac
-@node Header Files, Structures, Library Functions, Existing Tests
+@node Header Files, Declarations, Library Functions, Existing Tests
@section Header Files
The following macros check for the presence of certain C header files.
These macros check for particular system header files---whether they
exist, and in some cases whether they declare certain symbols.
-@defmac AC_DECL_SYS_SIGLIST
-@maindex DECL_SYS_SIGLIST
-@cvindex SYS_SIGLIST_DECLARED
-Define @code{SYS_SIGLIST_DECLARED} if the variable @code{sys_siglist} is
-declared in a system header file, either @file{signal.h} or
-@file{unistd.h}.
+@defmac AC_HEADER_STAT
+@maindex HEADER_STAT
+@maindex STAT_MACROS_BROKEN
+If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in
+@file{sys/stat.h} do not work properly (returning false positives),
+define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV,
+Amdahl UTS and Motorola System V/88.
+@end defmac
+
+@defmac AC_HEADER_TIME
+@maindex HEADER_TIME
+@cvindex TIME_WITH_SYS_TIME
+If a program may include both @file{time.h} and @file{sys/time.h},
+define @code{TIME_WITH_SYS_TIME}. On some older systems,
+@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not
+protected against multiple inclusion, so programs should not explicitly
+include both files. This macro is useful in programs that use, for
+example, @code{struct timeval} or @code{struct timezone} as well as
+@code{struct tm}. It is best used in conjunction with
+@code{HAVE_SYS_TIME_H}, which can be checked for using
+@code{AC_CHECK_HEADERS(sys/time.h)}.
+
+@example
+@group
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+@end group
+@end example
@end defmac
@defmac AC_DIR_HEADER
is executed when one of the header files is not found.
@end defmac
-@node Structures, Typedefs, Header Files, Existing Tests
+@node Declarations, Structures, Header Files, Existing Tests
+@section Declarations
+
+The following macros check for the declaration of variables and
+functions. If there is no macro specifically defined to check for a
+symbol you need, then you can use the general macro (@pxref{Generic
+Declarations}) or, for more complex tests, you may use
+@code{AC_TRY_COMPILE} (@pxref{Examining Syntax}).
+
+@menu
+* Particular Declarations:: Macros to check for certain declarations
+* Generic Declarations:: How to find other declarations
+@end menu
+
+@node Particular Declarations, Generic Declarations, Declarations, Declarations
+@subsection Particular Declaration Checks
+
+The following macros check for certain declarations.
+
+@defmac AC_DECL_SYS_SIGLIST
+@maindex DECL_SYS_SIGLIST
+@cvindex SYS_SIGLIST_DECLARED
+Define @code{SYS_SIGLIST_DECLARED} if the variable @code{sys_siglist}
+is declared in a system header file, either @file{signal.h} or
+@file{unistd.h}.
+@end defmac
+
+@node Generic Declarations, , Particular Declarations, Declarations
+@subsection Generic Declaration Checks
+
+These macros are used to find declarations not covered by the particular
+test macros.
+
+@defmac AC_CHECK_DECL (@var{symbol}, @r{[}@var{includes}, @r{[}@var{action-if-found} @r{[}, @var{action-if-not-found}@r{]]]})
+@maindex CHECK_DECL
+If @var{symbol} (a function or a variable) is declared in
+@var{includes}, run shell commands @var{action-if-found}, otherwise
+@var{action-if-not-found}.
+@end defmac
+
+@defmac AC_CHECK_DECLS (@var{symbol}@dots{}, @r{[}@var{includes} @r{[}, @var{action-if-found} @r{[}, @var{action-if-not-found}@r{]]]})
+@maindex CHECK_DECLS
+@cvindex @var{symbol}_DECLARED
+For each given @var{symbol} (whitespace-separated), define
+@code{@var{symbol}_DECLARED} (in all capitals) if @var{symbol} is
+declared. If @var{action-if-found} is given, it is additional shell
+code to execute when one of the function declarations is found,
+otherwise @var{action-if-not-found} is executed.
+@end defmac
+
+
+@node Structures, Typedefs, Declarations, Existing Tests
@section Structures
The following macros check for the presence of certain members in C
The following macros check for certain structures or structure members.
-@defmac AC_HEADER_STAT
-@maindex HEADER_STAT
-@maindex STAT_MACROS_BROKEN
-If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in
-@file{sys/stat.h} do not work properly (returning false positives),
-define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV,
-Amdahl UTS and Motorola System V/88.
-@end defmac
-
-@defmac AC_HEADER_TIME
-@maindex HEADER_TIME
-@cvindex TIME_WITH_SYS_TIME
-If a program may include both @file{time.h} and @file{sys/time.h},
-define @code{TIME_WITH_SYS_TIME}. On some older systems,
-@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not
-protected against multiple inclusion, so programs should not explicitly
-include both files. This macro is useful in programs that use, for
-example, @code{struct timeval} or @code{struct timezone} as well as
-@code{struct tm}. It is best used in conjunction with
-@code{HAVE_SYS_TIME_H}, which can be checked for using
-@code{AC_CHECK_HEADERS(sys/time.h)}.
-
-@example
-@group
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-@end group
-@end example
-@end defmac
-
@defmac AC_STRUCT_ST_BLKSIZE
@maindex STRUCT_ST_BLKSIZE
@cvindex HAVE_ST_BLKSIZE
dnl ifset(COND, IF-TRUE[, IF-FALSE])
dnl --------------------------------
dnl If COND is not the empty string, expand IF-TRUE, otherwise IF-FALSE.
+dnl Comparable to ifdef.
define([ifset], [ifelse([$1],,[$3],[$2])])
define(AC_PRO,
[define([AC_PROVIDE_$1], )dnl
ifelse(AC_DIVERSION_CURRENT, AC_DIVERSION_NORMAL,
-[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))],
+[AC_DIVERT_PUSH(m4_eval(AC_DIVERSION_CURRENT - 1))],
[pushdef([AC_DIVERSION_CURRENT], AC_DIVERSION_CURRENT)])dnl
])
dnl macros that are not involved in ordering constraints, to save m4
dnl processing.
dnl
-dnl If the REPLACED-FUNCTTION and ARGUMENT are defined, then declare that
+dnl If the REPLACED-FUNCTION and ARGUMENT are defined, then declare that
dnl NAME is a specialized version of REPLACED-FUNCTION when its first
dnl argument is ARGUMENT. For instance AC_TYPE_SIZE_T is a specialization
dnl of AC_CHECK_TYPE applied to `size_t'.
+dnl ### Some /bin/sh idioms
+
+dnl AC_SHELL_IFELSE(TEST[, IF-TRUE[, IF-FALSE]])
+dnl -------------------------------------------
+dnl Expand into
+dnl | if TEST; then
+dnl | IF-TRUE;
+dnl | else
+dnl | IF-FALSE
+dnl | fi
+dnl | with simplifications is IF-TRUE and/or IF-FALSE is empty.
+define([AC_SHELL_IFELSE],
+[ifset([$2$3],
+[if [$1]; then
+ ifset([$2], [$2], :)
+ifset([$3],
+[else
+ $3
+])dnl
+fi
+])])
+
+
dnl ### Common m4/sh handling of variables (indirections)
dnl AC_VAR_TEST_SET(VARIABLE)
dnl -------------------------
dnl Expands into the `test' expression which is true if VARIABLE
-dnl is set. Polymorphic.
+dnl is set. Polymorphic. Should be dnl'ed.
define(AC_VAR_TEST_SET,
[AC_VAR_IF_INDIR([$1],
[eval "test \"\${$1+set}\" = set"],
dnl Implement a shell `if-then-else' depending whether VARIABLE is set
dnl or not. Polymorphic.
define(AC_VAR_IF_SET,
-[if AC_VAR_TEST_SET([$1]); then
- ifelse([$2], , :, [$2])
-ifelse([$3], , ,
-[else
- $3
-])dnl
-fi
-])
+[AC_SHELL_IFELSE(AC_VAR_TEST_SET([$1]), [$2], [$3])])
+
dnl AC_VAR_PUSHDEF and AC_VAR_POPDEF
dnl --------------------------------
dnl Forbid appearence of `-' in FROM elsewhere than in the last position,
dnl since we might otherwise trigger a GNU m4 bug (version 1.4 included).
dnl ALPHABET may contain characters interval.
-define(AC_TR,
-[ifelse(regexp([$2$3], [%]), -1,,
- [AC_FATAL([$0: `%' cannot be used. Change the definition of $0])])dnl
-ifelse(regexp([$2], [-]), -1,, len([$2]),,
- [AC_FATAL([$0: `-' cannot be used but in the last position.])])dnl
-ifelse(len([$2]), len([$3]),,
- [AC_FATAL([$0: argument 2 and 3 should have the same length])])dnl
-AC_VAR_IF_INDIR([$1],
- [`echo "$1" | sed 'y%$2%$3%;s%[^$4]%$5%g'`],
- [patsubst(translit([$1], [$2], [$3]),
- [[^$4]], [$5])])])
-
-dnl AC_TR_DEFINE(EXPRESSION)
-dnl ------------------------
+dnl define(AC_TR,
+dnl [ifelse(regexp([$2$3], [%]), -1,,
+dnl [AC_FATAL([$0: `%' cannot be used. Change the definition of $0])])dnl
+dnl ifelse(regexp([$2], [-]), -1,, len([$2]),,
+dnl [AC_FATAL([$0: `-' cannot be used but in the last position.])])dnl
+dnl ifelse(len([$2]), len([$3]),,
+dnl [AC_FATAL([$0: argument 2 and 3 should have the same length])])dnl
+dnl AC_VAR_IF_INDIR([$1],
+dnl [`echo "$1" | sed 'y%$2%$3%;s%[^$4]%$5%g'`],
+dnl [patsubst(translit([$1], [$2], [$3]),
+dnl [[^$4]], [$5])])])
+
+dnl AC_TR_CPP(EXPRESSION)
+dnl ---------------------
dnl Map EXPRESSION to an upper case string which is valid as rhs for a
-dnl `#define'. sh/m4 polymorphic.
-define(AC_TR_DEFINE,
-[AC_TR([$1],
- [*abcdefghijklmnopqrstuvwxyz],
- [PABCDEFGHIJKLMNOPQRSTUVWXYZ],
- [A-Z0-9_],
- [_])])
+dnl `#define'. sh/m4 polymorphic. Make sure to update the definition
+dnl of `$ac_tr_cpp' if you change this.
+define(AC_TR_CPP,
+[AC_VAR_IF_INDIR([$1],
+ [`echo "$1" | $ac_tr_cpp`],
+ [patsubst(translit([$1],
+ [*abcdefghijklmnopqrstuvwxyz],
+ [PABCDEFGHIJKLMNOPQRSTUVWXYZ]),
+ [A-Z0-9_], [_])])])
dnl AC_TR_SH(EXPRESSION)
dnl sh/m4 polymorphic. Because of a delicate problem of quoting,
dnl we cannot use the definition we had before:
dnl AC_TR([$1],[*+], [pp], [a-zA-Z0-9_], [_])
+dnl Make sure to update the definition of `$ac_tr_cpp' if you change this.
define(AC_TR_SH,
[AC_VAR_IF_INDIR([$1],
[`echo "$1" | $ac_tr_sh`],
[patsubst(translit([$1], [*+], [pp]),
- [[^a-zA-Z0-9_]], [_])])])
+ [[^a-zA-Z0-9_]], [_])])])
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12
-# Sed expression to map a string onto a valid sh variable name
+# Sed expression to map a string onto a valid sh and CPP variable names.
changequote(, )dnl
ac_tr_sh='sed -e y%*+%pp%;s%[^a-zA-Z0-9_]%_%g'
+ac_tr_cpp='sed -e y%*abcdefghijklmnopqrstuvwxyz%PABCDEFGHIJKLMNOPQRSTUVWXYZ%;s%[^A-Z0-9_]%_%g'
changequote([, ])dnl
ac_prev=
dnl AC_INCLUDE
AC_DEFUN(AC_INCLUDE,
[ifelse($1, [], [], [dnl
- esyscmd([for file in $1; do echo "builtin(include,$file)dnl"; done])dnl
+ esyscmd([for file in $1; do echo "m4_include($file)dnl"; done])dnl
])])
dnl AC_INIT_PREPARE(UNIQUE-FILE-IN-SOURCE-DIR)
dnl AC_PREREQ_COMPARE(MAJOR1, MINOR1, TERNARY1, MAJOR2, MINOR2, TERNARY2,
dnl PRINTABLE2)
define(AC_PREREQ_COMPARE,
-[ifelse(builtin([eval],
-[$3 + $2 * 1000 + $1 * 1000000 < $6 + $5 * 1000 + $4 * 1000000]), 1,
-[AC_FATAL(Autoconf version $7 or higher is required for this script)])])
+[ifelse(
+ m4_eval([$3 + $2 * 1000 + $1 * 1000000 < $6 + $5 * 1000 + $4 * 1000000]),
+ 1, [AC_FATAL(Autoconf version $7 or higher is required for this script)])])
dnl Complain and exit if the Autoconf version is less than VERSION.
dnl AC_PREREQ(VERSION)
dnl ------------------------------------------
dnl
dnl The name of shell var CACHE-ID must contain `_cv_' in order to get saved.
+dnl Should be dnl'ed.
define(AC_CACHE_VAL,
[dnl We used to use the below line, but it fails if the 1st arg is a
dnl shell variable, so we need the eval.
[$2])])
dnl AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS)
+dnl -------------------------------------------
dnl Do not call this macro with a dnl right behind.
define(AC_CACHE_CHECK,
[AC_MSG_CHECKING([$1])
-AC_CACHE_VAL([$2], [$3])
+AC_CACHE_VAL([$2], [$3])dnl
AC_MSG_RESULT_UNQUOTED(AC_VAR_GET([$2]))])
dnl ### Defining symbols
-dnl Set VARIABLE to VALUE, verbatim, or 1.
-dnl AC_DEFINE(VARIABLE [, VALUE])
+dnl AC_DEFINE(VARIABLE [, VALUE[, DESCRIPTION]])
+dnl --------------------------------------------
+dnl Set VARIABLE to VALUE, verbatim, or 1. Remember the value
+dnl and if VARIABLE is affected the same VALUE, do nothing, else
+dnl die. The third argument is used by autoheader.
define(AC_DEFINE,
[cat >> confdefs.h <<\EOF
[#define] $1 ifelse($#, 2, [$2], $#, 3, [$2], 1)
EOF
])
+dnl AC_DEFINE_UNQUOTED(VARIABLE [, VALUE[, DESCRIPTION]])
+dnl -----------------------------------------------------
dnl Similar, but perform shell substitutions $ ` \ once on VALUE.
define(AC_DEFINE_UNQUOTED,
[cat >> confdefs.h <<EOF
dnl ### Printing messages at autoconf run time
-dnl _AC_MESSAGE(MESSAGE)
+dnl _AC_ERRPRINT(MESSAGE)
dnl Report the MESSAGE at m4 time, with line and filename.
-define(_AC_MESSAGE, [errprint(__file__:__line__: [$1
+define(_AC_ERRPRINT, [errprint(__file__:__line__: [$1
])])
dnl AC_WARNING(MESSAGE)
-define(AC_WARNING, [_AC_MESSAGE([warning: $1])])
+define(AC_WARNING, [_AC_ERRPRINT([warning: $1])])
dnl AC_FATAL(MESSAGE [, EXIT-STATUS])
define(AC_FATAL,
-[_AC_MESSAGE([error: $1])
+[_AC_ERRPRINT([error: $1])
m4exit(ifdef([$2], [$2], 1))])
dnl Expands into a sh call to echo onto FD (default is AC_FD_MSG).
dnl The shell perform its expansions on STRING.
define([_AC_ECHO_UNQUOTED],
-[echo "$1" 1>&ifelse($2,, AC_FD_MSG, $2)])
+[echo "[$1]" 1>&ifelse($2,, AC_FD_MSG, $2)])
dnl _AC_ECHO(STRING [ , FD ])
dnl Expands into a sh call to echo onto FD (default is AC_FD_MSG),
define(AC_MSG_ERROR,
[{ _AC_ECHO([configure: error: $1], 2); exit 1; }])
+dnl AC_MSG_ERROR_UNQUOTED(ERROR-DESCRIPTION)
+define(AC_MSG_ERROR_UNQUOTED,
+[{ _AC_ECHO_UNQUOTED([configure: error: $1], 2); exit 1; }])
+
dnl ### Selecting which language to use for testing
dnl AC_REQUIRE(MACRO-NAME)
define(AC_REQUIRE,
[ifdef([AC_PROVIDE_$1], ,
-[AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
+[AC_DIVERT_PUSH(m4_eval(AC_DIVERSION_CURRENT - 1))dnl
indir([$1])
AC_DIVERT_POP()dnl
])])
dnl AC_TRY_LINK_FUNC(func, action-if-found, action-if-not-found)
+dnl ------------------------------------------------------------
dnl Try to link a program that calls FUNC, handling GCC builtins. If
dnl the link succeeds, execute ACTION-IF-FOUND; otherwise, execute
dnl ACTION-IF-NOT-FOUND.
dnl Search for a library defining FUNC, if it's not already available.
AC_DEFUN(AC_SEARCH_LIBS,
-[AC_PREREQ([2.13])
-AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
+[AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1],
[ac_func_search_save_LIBS="$LIBS"
ac_cv_search_$1="no"
AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"])
dnl AC_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
-AC_DEFUN(AC_CHECK_LIB,
-[AC_MSG_CHECKING([for $2 in -l$1])
dnl Use a cache variable name containing both the library and function name,
dnl because the test really is for library $1 defining function $2, not
dnl just for library $1. Separate tests with the same $1 and different $2s
dnl may have different results.
-ac_lib_var=`echo $1['_']$2 | sed 'y%./+-:%__p__%'`
-AC_CACHE_VAL(ac_cv_lib_$ac_lib_var,
+AC_DEFUN(AC_CHECK_LIB,
+[AC_VAR_PUSHDEF([ac_var], [ac_cv_lib_$1_$2])dnl
+AC_CACHE_CHECK([for $2 in -l$1], ac_var,
[ac_save_LIBS="$LIBS"
LIBS="-l$1 $5 $LIBS"
AC_TRY_LINK(dnl
builtin and then its argument prototype would still apply. */
char $2();
])),
- [$2()],
- eval "ac_cv_lib_$ac_lib_var=yes",
- eval "ac_cv_lib_$ac_lib_var=no")
-LIBS="$ac_save_LIBS"
-])dnl
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
- AC_MSG_RESULT(yes)
- ifelse([$3], ,
-[changequote(, )dnl
- ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
- -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
-changequote([, ])dnl
- AC_DEFINE_UNQUOTED($ac_tr_lib)
+[$2()],
+AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))
+LIBS="$ac_save_LIBS"])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_LIB$1))
LIBS="-l$1 $LIBS"
-], [$3])
-else
- AC_MSG_RESULT(no)
-ifelse([$4], , , [$4
-])dnl
-fi
-])
+ $3],
+ [$4])dnl
+AC_VAR_POPDEF([ac_var])dnl
+])dnl AC_CHECK_LIB
dnl AC_HAVE_LIBRARY(LIBRARY, [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND
dnl [, OTHER-LIBRARIES]]])
+dnl FIXME: Remove
AC_DEFUN(AC_HAVE_LIBRARY,
[AC_OBSOLETE([$0], [; instead use AC_CHECK_LIB])dnl
changequote(<<, >>)dnl
AC_MSG_RESULT($AC_CV_NAME)
if test "$AC_CV_NAME" = yes; then
ifelse([$2], ,
-[AC_DEFINE([HAVE_LIB]AC_TR_DEFINE(AC_LIB_NAME))
+[AC_DEFINE([HAVE_LIB]AC_TR_CPP(AC_LIB_NAME))
LIBS="-l[]AC_LIB_NAME[] $LIBS"
], [$2])
ifelse([$3], , , [else
dnl AC_CHECK_HEADER(HEADER-FILE, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_HEADER,
-[dnl Do the transliteration at runtime so arg 1 can be a shell variable.
-ac_safe=`echo "$1" | sed 'y%./+-%__p_%'`
-AC_MSG_CHECKING([for $1])
-AC_CACHE_VAL(ac_cv_header_$ac_safe,
-[AC_TRY_CPP([#include <$1>], eval "ac_cv_header_$ac_safe=yes",
- eval "ac_cv_header_$ac_safe=no")])dnl
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
- AC_MSG_RESULT(yes)
- ifelse([$2], , :, [$2])
-else
- AC_MSG_RESULT(no)
-ifelse([$3], , , [$3
-])dnl
-fi
-])
-
-dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+[AC_VAR_PUSHDEF([ac_var_header], [ac_cv_header_$1])dnl
+AC_CACHE_CHECK([for $1], ac_var_header,
+[AC_TRY_CPP([#include <$1>],
+AC_VAR_SET(ac_var_header, yes), AC_VAR_SET(ac_var_header, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var_header) = yes,
+ [$2], [$3])dnl
+AC_VAR_POPDEF([ac_var_header])dnl
+])dnl AC_CHECK_HEADER
+
+dnl AC_CHECK_HEADERS(HEADER-FILE...
+dnl [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_HEADERS,
-[for ac_hdr in $1
+[for ac_header in $1
do
-AC_CHECK_HEADER($ac_hdr,
-[changequote(, )dnl
- ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
-changequote([, ])dnl
- AC_DEFINE_UNQUOTED($ac_tr_hdr) $2], $3)dnl
+AC_CHECK_HEADER($ac_header,
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_$ac_header)) $2],
+ [$3])dnl
done
])
AC_DEFUN(AC_CHECK_FILES,
[AC_FOREACH([AC_FILE_NAME], [$1],
[AC_SPECIALIZE([AC_CHECK_FILE], AC_FILE_NAME,
- [AC_DEFINE_UNQUOTED(AC_TR_DEFINE(HAVE_[]AC_FILE_NAME))
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_[]AC_FILE_NAME))
$2],
[$3])])])
dnl [for ac_file in $1
dnl do
dnl AC_CHECK_FILE($ac_file,
-dnl [AC_DEFINE_UNQUOTED(AC_TR_DEFINE(HAVE_$ac_file)) $2],
+dnl [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_$ac_file)) $2],
dnl [$3])dnl
dnl done
dnl ])
+dnl ### Checking for declared symbols
+
+
+dnl AC_CHECK_DECL(SYMBOL, [, INCLUDES,
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl --------------------------------------------------------
+dnl Check if SYMBOL (a variable or a function) is declared.
+AC_DEFUN([AC_CHECK_DECL],
+[AC_VAR_PUSHDEF([ac_var], [ac_cv_decl_$1])dnl
+AC_CACHE_CHECK([whether $1 is declared], ac_var,
+[AC_TRY_COMPILE($2,
+[#ifndef $1
+char *p = (char *) $1;
+#endif
+],
+AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+ [$3], [$4])dnl
+AC_VAR_POPDEF([ac_var])dnl
+])dnl AC_CHECK_DECL
+
+dnl AC_CHECK_DECL(SYMBOL... , [, INCLUDES,
+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+AC_DEFUN(AC_CHECK_DECLS,
+[for ac_sym in $1
+do
+AC_CHECK_DECL($ac_sym,
+ [$2],
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(${ac_sym}_DECLARED)) $3],
+ [$4])dnl
+done
+])
+
dnl ### Checking for library functions
f = $1;
#endif
], AC_VAR_SET(ac_var, yes), AC_VAR_SET(ac_var, no))])
-dnl The ridiculous following `:' are coming from the fact that we
-dnl need to have a body for these tests, otherwise some shells will
-dnl die. FIXME: We should write a macro specifically to handle this kind
-dnl of switches, since they are very common in Autoconf.
-if test AC_VAR_GET(ac_var) = yes; then
- :
-ifset([$2], [ $2
-])dnl
-else
- :
-ifset([$3], [ $3
-])dnl
-fi
-AC_VAR_POPDEF([ac_var])])
+AC_SHELL_IFELSE(test AC_VAR_GET(ac_var) = yes,
+ [$2], [$3])dnl
+AC_VAR_POPDEF([ac_var])dnl
+])dnl AC_CHECK_FUNC
dnl AC_CHECK_FUNCS(FUNCTION... [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
AC_DEFUN(AC_CHECK_FUNCS,
[for ac_func in $1
do
AC_CHECK_FUNC($ac_func,
- [AC_DEFINE_UNQUOTED(AC_TR_DEFINE(HAVE_$ac_func)) $2],
+ [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_$ac_func)) $2],
[$3])dnl
done
])
AC_VAR_SET(ac_var, `cat conftestval`),
AC_VAR_SET(ac_var, 0),
ifset([$2], AC_VAR_SET(ac_var, $2)))])
-AC_DEFINE_UNQUOTED(AC_TR_DEFINE(sizeof_$1), AC_VAR_GET(ac_var))
+AC_DEFINE_UNQUOTED(AC_TR_CPP(sizeof_$1), AC_VAR_GET(ac_var))
AC_VAR_POPDEF([ac_var])dnl
])
dnl AC_CHECK_TYPE(TYPE, DEFAULT)
+dnl FIXME: This is an extremely badly choosen name, since this
+dnl macro actually performs an AC_REPLACE_TYPE. Some day we
+dnl have to clean this up.
AC_DEFUN(AC_CHECK_TYPE,
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_MSG_CHECKING(for $1)
: \${CONFIG_FILES="$1"}
ifdef([AC_LIST_HEADER], [: \${CONFIG_HEADERS=AC_LIST_HEADER}
])dnl
-rm -fr \`echo "\$CONFIG_FILES ifdef([AC_LIST_HEADER], \$CONFIG_HEADERS)" | sed "s/:@BKL@^ @BKR@*//g"\`
+rm -fr \`echo "\$CONFIG_FILES" | sed "s/:@BKL@^ @BKR@*//g"\`
trap 'rm -fr \$confstat*; exit 1' 1 2 15
EOF
dnl The following three sections are in charge of their own here
changequote([, ])dnl
if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
# The file is in a subdirectory.
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
test ! -d "$ac_dir" && mkdir "$ac_dir"
ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
# A "../" for each directory in $ac_dir_suffix.
changequote([, ])dnl
if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
# The file is in a subdirectory.
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
test ! -d "$ac_dir" && mkdir "$ac_dir"
fi
rm -f $ac_file
changequote([, ])dnl
if test "$ac_dest_dir" != "$ac_dest" && test "$ac_dest_dir" != .; then
# The dest file is in a subdirectory.
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
test ! -d "$ac_dest_dir" && mkdir "$ac_dest_dir"
ac_dest_dir_suffix="/`echo $ac_dest_dir|sed 's%^\./%%'`"
# A "../" for each directory in $ac_dest_dir_suffix.
fi
done
EOF
-])
+])dnl AC_OUTPUT_LINKS
dnl This is a subroutine of AC_OUTPUT.
dnl It is called after running config.status.
case "$srcdir" in
.) ;;
*)
- dnl FIXME: should actually be mkinstalldirs (parents may have
- dnl to be created too.
+dnl FIXME: should actually be mkinstalldirs (parents may have
+dnl to be created too.
if test -d ./$ac_config_dir || mkdir ./$ac_config_dir; then :;
else
AC_MSG_ERROR(cannot create `pwd`/$ac_config_dir)
dnl must be a space separated list of Fortran 77 compilers to search
dnl for. This just gives the user an opportunity to specify an
dnl alternative search list for the Fortran 77 compiler.
-dnl
+dnl
dnl AC_PROG_F77()
AC_DEFUN(AC_PROG_F77,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
dnl Fortran program. Also, test whether the Fortran 77 compiler is a
dnl cross-compiler (which may realistically be the case if the Fortran
dnl compiler is `g77').
-dnl
+dnl
dnl AC_PROG_F77_WORKS()
AC_DEFUN(AC_PROG_F77_WORKS,
[AC_MSG_CHECKING([whether the Fortran 77 compiler ($F77 $FFLAGS $LDFLAGS) works])
dnl Test whether for Fortran 77 compiler is `g77' (the GNU Fortran 77
dnl Compiler). This test depends on whether the Fortran 77 compiler can
dnl do CPP pre-processing.
-dnl
+dnl
dnl AC_PROG_F77_GNU()
AC_DEFUN(AC_PROG_F77_GNU,
[AC_CACHE_CHECK(whether we are using GNU Fortran 77, ac_cv_prog_g77,
dnl Test whether the Fortran 77 compiler can accept the `-g' option to
dnl enable debugging.
-dnl
+dnl
dnl AC_PROG_F77_G()
AC_DEFUN(AC_PROG_F77_G,
[AC_CACHE_CHECK(whether $F77 accepts -g, ac_cv_prog_f77_g,
dnl The usefulness of this macro is questionable, as I can't really see
dnl why anyone would use it. The only reason I include it is for
dnl completeness, since a similar test exists for the C compiler.
-dnl
+dnl
dnl AC_PROG_F77_C_O
AC_DEFUN(AC_PROG_F77_C_O,
[AC_BEFORE([$0], [AC_PROG_F77])dnl
AC_DEFUN(AC_FUNC_STRFTIME,
[AC_CHECK_FUNC(strftime, [AC_DEFINE(HAVE_STRFTIME)],
[# strftime is in -lintl on SCO UNIX.
-AC_CHECK_LIB(intl, strftime,
+AC_CHECK_LIB(intl, strftime,
[AC_DEFINE(HAVE_STRFTIME)
LIBS="-lintl $LIBS"])])])
])dnl AC_CACHE_VAL
])dnl AC_CACHE_VAL
if test "$ac_not_found" = yes; then
- ac_cv_func_select_arg1=int
- ac_cv_func_select_arg234='int *'
+ ac_cv_func_select_arg1=int
+ ac_cv_func_select_arg234='int *'
ac_cv_func_select_arg5='struct timeval *'
fi
AC_MSG_RESULT([$ac_cv_func_select_arg1,$ac_cv_func_select_arg234,$ac_cv_func_select_arg5])
[#ifdef _AIX
yes
#endif
-], [AC_MSG_RESULT(yes); AC_DEFINE(_ALL_SOURCE)], AC_MSG_RESULT(no))
+],
+[AC_MSG_RESULT(yes)
+AC_DEFINE(_ALL_SOURCE)],
+AC_MSG_RESULT(no))
])
AC_DEFUN(AC_MINIX,
projects / thirdparty / autoconf.git / commitdiff
