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Re: changing compiler flags at configure time
|
From: |
Eric Blake |
|
Subject: |
Re: changing compiler flags at configure time |
|
Date: |
Thu, 15 Jun 2006 21:50:46 -0600 |
|
User-agent: |
Thunderbird 1.5.0.4 (Windows/20060516) |
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
According to Eric Blake on 6/12/2006 7:12 AM:
> CVS head of m4 currently has a macro, ltdl/m4/debug.m4, that attempts to
> alter compile-time flags according to whether --enable-debug is passed to
> ./configure. However, it uses AC_DISABLE_SHARED and AC_ENABLE_SHARED
> inside a shell if-then-else to enforce this decision, and autoupdate
> reports that both macors are obsolete and should now be done by LT_INIT.
> Hmm, AC_ENABLE_SHARED and its replacement of the parameter 'shared' to
> LT_INIT aren't even mentioned in libtool.texi.
Well, for now, I've left that part of the debug.m4 using the obsolete
macros, pending when libtool fixes the issues I raised. But I tried to
kill all the other locations where m4's own macros caused 'WARNINGS=all
./bootstrap' grief. I'll send a separate mail to the automake list about
CVS head's use of obsolete macros.
Plus, this patch fixes the display bug in `./configure --help' (since
AC_ARG_WITH does not expand shell variables, only m4 macros):
--with-modules=MODULES preload MODULES [default: $m4_default_preload]
2006-06-15 Eric Blake <address@hidden>
* ltdl/m4/m4-error.m4 (M4_ERROR): Use M4_ instead of m4_ to avoid
clashes with m4sugar.
* ltdl/m4/m4-getopt.m4 (M4_GETOPT): Likewise.
* ltdl/m4/m4-gettext.m4 (M4_GNU_GETTEXT): Likewise.
* ltdl/m4/m4-obstack.m4 (M4_OBSTACK): Likewise.
* ltdl/m4/m4-regex.m4 (M4_REGEX): Likewise.
* ltdl/m4/gmp.m4 (_M4_LIB_GMP): Likewise.
* ltdl/m4/stackovf.m4 (M4_SYS_STACKOVF): Likewise.
* ltdl/m4/debug.m4 (M4_CHECK_DEBUGGING): Likewise.
* configure.ac: Likewise.
(M4_DEFAULT_PRELOAD): Use as a macro, not shell variable.
* Makefile.am (src_m4_CPPFLAGS): Use STACKOVF as a makefile
conditional.
* ltdl/m4/m4-gnulib.m4: Delete, no longer needed.
- --
Life is short - so eat dessert first!
Eric Blake address@hidden
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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFEkiqW84KuGfSFAYARAjWuAJ0VzKJzS+pFDfQoH1TCUi3CHKV4AwCgrK+Y
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Index: Makefile.am
===================================================================
RCS file: /sources/m4/m4/Makefile.am,v
retrieving revision 1.29
diff -u -p -r1.29 Makefile.am
--- Makefile.am 14 Jun 2006 13:19:46 -0000 1.29
+++ Makefile.am 16 Jun 2006 03:47:04 -0000
@@ -77,8 +77,10 @@ src_m4_SOURCES = \
src/version-etc.h \
src/main.c \
src/m4.h \
- src/freeze.c \
- src/stackovf.c
+ src/freeze.c
+if STACKOVF
+src_m4_SOURCES += src/stackovf.c
+endif
src_m4_CPPFLAGS = $(AM_CPPFLAGS) -Isrc -I$(srcdir)/src $(LTDLINCL)
src_m4_LDFLAGS = $(AM_LDFLAGS) $(DLPREOPEN)
src_m4_LDADD = m4/libm4.la
Index: configure.ac
===================================================================
RCS file: /sources/m4/m4/configure.ac,v
retrieving revision 1.46
diff -u -p -r1.46 configure.ac
--- configure.ac 13 Jun 2006 01:19:09 -0000 1.46
+++ configure.ac 16 Jun 2006 03:47:04 -0000
@@ -60,18 +60,17 @@ dnl the m4_ namespace provided by m4suga
dnl package-specific prefix. FIXME - consistently use M4_ in the m4 macros
dnl that feed the creation of configure.
m4_pattern_forbid([^M4_])
-m4_pattern_allow([^m4_cv_])
+m4_pattern_allow([^M4_cv_])
+AC_DEFUN([M4_DEFAULT_PRELOAD], [m4 traditional gnu])
AC_MSG_CHECKING([for modules to preload])
- m4_pattern_allow([^m4_default_preload$])
- m4_default_preload="m4 traditional gnu"
DLPREOPEN=
AC_ARG_WITH([modules],
[AS_HELP_STRING([--with-modules=MODULES],
- [preload MODULES @<:@default: $m4_default_preload@:>@])],
+ [preload MODULES @<:@default: ]M4_DEFAULT_PRELOAD[@:>@])],
[use_modules="$withval"],
- [use_modules="$m4_default_preload"])
+ [use_modules="$M4_DEFAULT_PRELOAD"])
PREOPEN_DEPENDENCIES=
DLPREOPEN="-dlpreopen force"
@@ -106,7 +105,7 @@ M4_EARLY
AC_PROG_CPP
AM_PROG_CC_C_O
-m4_CHECK_DEBUGGING
+M4_CHECK_DEBUGGING
@@ -122,7 +121,7 @@ LT_WITH_LTDL([ltdl])
case "$CFLAGS" in
*-pipe* ) ;;
* ) _LT_COMPILER_OPTION([if $compiler supports -pipe],
- [m4_cv_prog_compiler_pipe],
+ [M4_cv_prog_compiler_pipe],
[-pipe -c conftest.$ac_ext], [],
[CFLAGS="$CFLAGS -pipe"])
;;
@@ -135,7 +134,7 @@ esac
## ---------------- ##
AM_GNU_GETTEXT([external], [need-ngettext])
AM_GNU_GETTEXT_VERSION([0.14.1])
-m4_GNU_GETTEXT
+M4_GNU_GETTEXT
@@ -145,10 +144,10 @@ m4_GNU_GETTEXT
M4_INIT
# Gnulib doesn't always do things quite the way M4 would like...
-m4_ERROR
-m4_GETOPT
-m4_OBSTACK
-m4_REGEX
+M4_ERROR
+M4_GETOPT
+M4_OBSTACK
+M4_REGEX
## ------------------------ ##
@@ -188,7 +187,7 @@ AC_CHECK_FUNCS([calloc strerror tmpfile]
AM_WITH_DMALLOC
-m4_SYS_STACKOVF
+M4_SYS_STACKOVF
# This is for the modules
AC_STRUCT_TM
@@ -196,7 +195,7 @@ AC_FUNC_STRFTIME
AC_CHECK_FUNCS([getcwd gethostname mktime uname \
setenv unsetenv putenv clearenv])
-m4_LIB_GMP
+M4_LIB_GMP
AM_CONDITIONAL([USE_GMP], [test "x$USE_GMP" = xyes])
Index: ltdl/m4/debug.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/debug.m4,v
retrieving revision 1.2
diff -u -p -r1.2 debug.m4
--- ltdl/m4/debug.m4 7 Jul 2005 11:31:11 -0000 1.2
+++ ltdl/m4/debug.m4 16 Jun 2006 03:47:04 -0000
@@ -1,7 +1,7 @@
## -*- Autoconf -*-
## debug.m4 -- massage compiler flags for debugging/optimisation
##
-## Copyright (C) 1999-2000 Ralf S. Engelschall
+## Copyright (C) 1999-2000, 2006 Ralf S. Engelschall
## Written by <address@hidden>
## Modified for M4 by Gary V. Vaughan <address@hidden>
##
@@ -20,16 +20,16 @@
## the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
## Boston, MA 02110-1301, USA.
-# serial 8
+# serial 9
-# m4_CHECK_DEBUGGING
+# M4_CHECK_DEBUGGING
# ------------------
# Debugging Support
-AC_DEFUN([m4_CHECK_DEBUGGING],
+AC_DEFUN([M4_CHECK_DEBUGGING],
[AC_REQUIRE([AC_PROG_CC])
-AC_ARG_ENABLE([debug], [AC_HELP_STRING([--enable-debug],
+AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug],
[build for debugging [default=no]])])
-AC_MSG_CHECKING(for compilation debug mode)
+AC_MSG_CHECKING([for compilation debug mode])
AC_MSG_RESULT([${enable_debug-no}])
: ${rm=rm -f}
@@ -41,7 +41,7 @@ test -n "$rm" || rm="rm -f"
if test "X$enable_debug" = Xyes; then
AC_DISABLE_SHARED
- AC_DEFINE([DEBUG], 1,
+ AC_DEFINE([DEBUG], [1],
[Define this to enable additional runtime debugging])
if test "$GCC" = yes; then
case "$CFLAGS" in
@@ -50,7 +50,7 @@ if test "X$enable_debug" = Xyes; then
case "$CFLAGS" in
*-g* ) ;;
* ) AC_LIBTOOL_COMPILER_OPTION([if $compiler accepts -ggdb3],
- [m4_cv_prog_compiler_ggdb3],
+ [M4_cv_prog_compiler_ggdb3],
[-ggdb3 -c conftest.$ac_ext], [],
[CFLAGS="$CFLAGS -ggdb3"],
[CFLAGS="$CFLAGS -g"])
@@ -60,12 +60,12 @@ if test "X$enable_debug" = Xyes; then
WMORE="-Wshadow -Wpointer-arith -Wcast-align -Wnested-externs"
WMORE="$WMORE -Wmissing-prototypes -Wmissing-declarations -Winline"
AC_LIBTOOL_COMPILER_OPTION([if $compiler accepts $WMORE],
- [m4_cv_prog_compiler_warning_flags],
+ [M4_cv_prog_compiler_warning_flags],
[$WMORE -c conftest.$ac_ext], [],
[CFLAGS="$CFLAGS $WMORE"])
AC_LIBTOOL_COMPILER_OPTION([if $compiler accepts -Wno-long-long],
- [m4_cv_prog_compiler_wnolonglong],
+ [M4_cv_prog_compiler_wnolonglong],
[-Wno-long-long -c conftest.$ac_ext], [],
[CFLAGS="$CFLAGS -Wno-long-long"])
else
@@ -87,4 +87,4 @@ else
;;
esac
fi
-])# m4_CHECK_DEBUGGING
+])# M4_CHECK_DEBUGGING
Index: ltdl/m4/gmp.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/gmp.m4,v
retrieving revision 1.1
diff -u -p -r1.1 gmp.m4
--- ltdl/m4/gmp.m4 4 May 2005 15:45:44 -0000 1.1
+++ ltdl/m4/gmp.m4 16 Jun 2006 03:47:04 -0000
@@ -1,5 +1,5 @@
# -*- Autoconf -*-
-# Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+# Copyright (C) 2000, 2001, 2003, 2006 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -16,59 +16,59 @@
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
-# serial 7
+# serial 8
-m4_define([_m4_LIB_GMP],
-[AC_ARG_WITH(gmp,
-[ --without-gmp don't use GNU multiple precision arithmetic
library],
+m4_define([_M4_LIB_GMP],
+[AC_ARG_WITH([gmp],
+ [AS_HELP_STRING([--without-gmp],
+ [don't use GNU multiple precision arithmetic library])],
[use_gmp=$withval], [use_gmp=yes])
case $use_gmp:$LIBADD_GMP:$ac_cv_header_gmp_h in
*::yes)
AC_MSG_WARN([gmp library not found or does not appear to work
but `gmp.h' is present])
- m4_cv_using_lib_gmp=no
+ M4_cv_using_lib_gmp=no
;;
*:-lgmp:no)
AC_MSG_WARN([gmp works but `gmp.h' is missing])
- m4_cv_using_lib_gmp=no
+ M4_cv_using_lib_gmp=no
;;
yes:*:yes)
- m4_cv_using_lib_gmp=yes
+ M4_cv_using_lib_gmp=yes
;;
no:*)
- m4_cv_using_lib_gmp=no
+ M4_cv_using_lib_gmp=no
;;
esac
-])# _m4_LIB_GMP
+])# _M4_LIB_GMP
-AC_DEFUN([m4_LIB_GMP],
-[AC_PREREQ(2.56)dnl We use the new compiler based header checking in 2.56
+AC_DEFUN([M4_LIB_GMP],
+[AC_PREREQ([2.56])dnl We use the new compiler based header checking in 2.56
AC_CHECK_HEADERS([gmp.h], [], [], [AC_INCLUDES_DEFAULT])
-m4_pattern_allow([^m4_gmp_save_LIBS$])
-m4_pattern_allow([^m4_cv_using_lib_gmp])
+m4_pattern_allow([^M4_gmp_save_LIBS$])
# Some versions of gmp provide mpq_init as a macro, so we need to
# include the header file, otherwise the detection will fail.
-m4_gmp_save_LIBS="$LIBS"
+M4_gmp_save_LIBS="$LIBS"
LIBS="$LIBS -lgmp"
-AC_TRY_LINK([#if HAVE_GMP_H
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_GMP_H
# include <gmp.h>
-#endif],
- [mpq_t n; mpq_init (n);],
+#endif]],
+ [[mpq_t n; mpq_init (n);]])],
[LIBADD_GMP=-lgmp])
-LIBS=$m4_gmp_save_LIBS
+LIBS=$M4_gmp_save_LIBS
AC_SUBST([LIBADD_GMP])
AC_CACHE_CHECK([if using GNU multiple precision arithmetic library],
- [m4_cv_using_lib_gmp],
- [_m4_LIB_GMP])
+ [M4_cv_using_lib_gmp],
+ [_M4_LIB_GMP])
# Don't try to link in libgmp if we are not using it after the last call
-if test "$m4_cv_using_lib_gmp" = yes; then
- AC_DEFINE(USE_GMP, 1,
+if test "$M4_cv_using_lib_gmp" = yes; then
+ AC_DEFINE([USE_GMP], [1],
[Define to 1 if using the GNU multiple precision library.])
fi
-AC_SUBST([USE_GMP], [$m4_cv_using_lib_gmp])
-])# m4_LIB_GMP
+AC_SUBST([USE_GMP], [$M4_cv_using_lib_gmp])
+])# M4_LIB_GMP
Index: ltdl/m4/m4-error.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/m4-error.m4,v
retrieving revision 1.1
diff -u -p -r1.1 m4-error.m4
--- ltdl/m4/m4-error.m4 4 May 2005 15:45:44 -0000 1.1
+++ ltdl/m4/m4-error.m4 16 Jun 2006 03:47:04 -0000
@@ -2,7 +2,7 @@
# m4-error.m4 -- Use the installed version of error.h if available.
# Written by Gary V. Vaughan <address@hidden>
#
-# Copyright (C) 2003, 2004 Free Software Foundation, Inc
+# Copyright (C) 2003, 2004, 2006 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
@@ -19,17 +19,17 @@
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
-# serial 3
+# serial 4
-# m4_ERROR
+# M4_ERROR
# --------
# Use the installed version of error.h if available.
-AC_DEFUN([m4_ERROR],
-[AC_BEFORE([gl_ERROR], [m4_ERROR])
+AC_DEFUN([M4_ERROR],
+[AC_BEFORE([gl_ERROR], [M4_ERROR])
AC_CHECK_HEADERS([error.h],
[ERROR_H=""], [ERROR_H="error.h"], [AC_INCLUDES_DEFAULT])
-AC_SUBST(ERROR_H)
+AC_SUBST([ERROR_H])
if test $ac_cv_header_error_h = yes; then
INCLUDE_ERROR_H='#include <error.h>'
@@ -37,4 +37,4 @@ else
INCLUDE_ERROR_H='#include <gnu/error.h>'
fi
AC_SUBST([INCLUDE_ERROR_H])
-])# m4_ERROR
+])# M4_ERROR
Index: ltdl/m4/m4-getopt.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/m4-getopt.m4,v
retrieving revision 1.2
diff -u -p -r1.2 m4-getopt.m4
--- ltdl/m4/m4-getopt.m4 6 May 2005 07:46:20 -0000 1.2
+++ ltdl/m4/m4-getopt.m4 16 Jun 2006 03:47:04 -0000
@@ -2,7 +2,7 @@
# m4-getopt.m4 -- Use the installed version of getopt.h if available.
# Written by Gary V. Vaughan <address@hidden>
#
-# Copyright (C) 2005 Free Software Foundation, Inc
+# Copyright (C) 2005, 2006 Free Software Foundation, Inc
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -19,12 +19,12 @@
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
-# serial 1
+# serial 2
-# m4_GETOPT
+# M4_GETOPT
# ---------
# Use the installed version of getopt.h if available.
-AC_DEFUN([m4_GETOPT],
+AC_DEFUN([M4_GETOPT],
[GETOPT_H=
AC_SUBST([GETOPT_H])
@@ -50,4 +50,4 @@ if test -n "$GETOPT_H"; then
AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
[Define to rpl_ if the getopt replacement function should be used.])
fi
-])# m4_GETOPT
+])# M4_GETOPT
Index: ltdl/m4/m4-gettext.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/m4-gettext.m4,v
retrieving revision 1.1
diff -u -p -r1.1 m4-gettext.m4
--- ltdl/m4/m4-gettext.m4 4 May 2005 15:45:44 -0000 1.1
+++ ltdl/m4/m4-gettext.m4 16 Jun 2006 03:47:04 -0000
@@ -2,7 +2,7 @@
# m4-gettext.m4 -- Use the installed version of GNU gettext if available.
# Written by Gary V. Vaughan <address@hidden>
#
-# Copyright (C) 2003, 2004 Free Software Foundation, Inc
+# Copyright (C) 2003, 2004, 2006 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
@@ -19,16 +19,16 @@
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
-# serial 2
+# serial 3
-# m4_GNU_GETTEXT
+# M4_GNU_GETTEXT
# --------------
# Use the installed version of GNU gettext if available.
-AC_DEFUN([m4_GNU_GETTEXT],
-[AC_BEFORE([AM_GNU_GETTEXT], [m4_GNU_GETTEXT])
+AC_DEFUN([M4_GNU_GETTEXT],
+[AC_BEFORE([AM_GNU_GETTEXT], [M4_GNU_GETTEXT])
AC_CHECK_HEADERS([gettext.h],
[GETTEXT_H=""], [GETTEXT_H="gettext.h"], [AC_INCLUDES_DEFAULT])
-AC_SUBST(GETTEXT_H)
+AC_SUBST([GETTEXT_H])
-AC_CONFIG_FILES(po/Makefile.in)
-])# m4_GNU_GETTEXT
+AC_CONFIG_FILES([po/Makefile.in])
+])# M4_GNU_GETTEXT
Index: ltdl/m4/m4-gnulib.m4
===================================================================
RCS file: ltdl/m4/m4-gnulib.m4
diff -N ltdl/m4/m4-gnulib.m4
--- ltdl/m4/m4-gnulib.m4 7 Jul 2005 16:27:54 -0000 1.2
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,27 +0,0 @@
-# -*- Autoconf -*-
-# m4-gnulib.m4 -- List the gnulib modules required
-#
-# Copyright (C) 2003 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
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
-
-# Written by Gary V. Vaughan <address@hidden>
-
-# serial 1
-
-# m4_GNULIB_MODULES
-# -----------------
-AC_DEFUN([m4_GNULIB_MODULES], [:])
Index: ltdl/m4/m4-obstack.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/m4-obstack.m4,v
retrieving revision 1.1
diff -u -p -r1.1 m4-obstack.m4
--- ltdl/m4/m4-obstack.m4 4 May 2005 15:45:44 -0000 1.1
+++ ltdl/m4/m4-obstack.m4 16 Jun 2006 03:47:04 -0000
@@ -1,7 +1,7 @@
# -*- Autoconf -*-
# m4-obstack.m4 -- the libc supplied version of obstacks if available.
#
-# Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc
+# Copyright (C) 2000, 2001, 2003, 2004, 2006 Free Software Foundation, Inc
# Written by Gary V. Vaughan <address@hidden>
#
# This program is free software; you can redistribute it and/or modify
@@ -19,19 +19,19 @@
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
-# serial 9
+# serial 10
-# m4_OBSTACK
+# M4_OBSTACK
# ----------
# Use the libc supplied version of obstacks if available.
-AC_DEFUN([m4_OBSTACK],
-[AC_PREREQ(2.56)dnl We use the compiler based header checking in 2.56
-AC_BEFORE([gl_OBSTACK], [m4_OBSTACK])
+AC_DEFUN([M4_OBSTACK],
+[AC_PREREQ([2.56])dnl We use the compiler based header checking in 2.56
+AC_BEFORE([gl_OBSTACK], [M4_OBSTACK])
AC_ARG_WITH([included-obstack],
- [AC_HELP_STRING([--with-included-obstack],
+ [AS_HELP_STRING([--with-included-obstack],
[use the obstack implementation included here])])
-AC_CHECK_HEADERS(obstack.h, [], [], [AC_INCLUDES_DEFAULT])
+AC_CHECK_HEADERS([obstack.h], [], [], [AC_INCLUDES_DEFAULT])
if test "x${with_included_obstack-no}" != xno; then
ac_cv_func_obstack=no
@@ -44,6 +44,6 @@ else
INCLUDE_OBSTACK_H='#include <gnu/obstack.h>'
OBSTACK_H=obstack.h
fi
-AC_SUBST(OBSTACK_H)
-AC_SUBST(INCLUDE_OBSTACK_H)
-])# m4_FUNC_OBSTACK
+AC_SUBST([OBSTACK_H])
+AC_SUBST([INCLUDE_OBSTACK_H])
+])# M4_FUNC_OBSTACK
Index: ltdl/m4/m4-regex.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/m4-regex.m4,v
retrieving revision 1.1
diff -u -p -r1.1 m4-regex.m4
--- ltdl/m4/m4-regex.m4 4 May 2005 15:45:44 -0000 1.1
+++ ltdl/m4/m4-regex.m4 16 Jun 2006 03:47:04 -0000
@@ -2,7 +2,7 @@
# m4-regex.m4 -- Use the installed regex if it is good enough.
# Written by Gary V. Vaughan <address@hidden>
#
-# Copyright (C) 2003, 2004 Free Software Foundation, Inc
+# Copyright (C) 2003, 2004, 2006 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
@@ -19,13 +19,13 @@
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
-# serial 3
+# serial 4
-# m4_REGEX([path/to/regex.c])
+# M4_REGEX([path/to/regex.c])
# ---------------------------
# Use the installed regex if it is good enough.
-AC_DEFUN([m4_REGEX],
-[AC_BEFORE([gl_REGEX], [m4_REGEX])
+AC_DEFUN([M4_REGEX],
+[AC_BEFORE([gl_REGEX], [M4_REGEX])
if test $ac_use_included_regex = no; then
INCLUDE_REGEX_H='#include <regex.h>'
REGEX_H=
@@ -33,6 +33,6 @@ else
INCLUDE_REGEX_H='#include <gnu/regex.h>'
REGEX_H=regex.h
fi
-AC_SUBST(REGEX_H)
-AC_SUBST(INCLUDE_REGEX_H)
-])# m4_REGEX
+AC_SUBST([REGEX_H])
+AC_SUBST([INCLUDE_REGEX_H])
+])# M4_REGEX
Index: ltdl/m4/stackovf.m4
===================================================================
RCS file: /sources/m4/m4/ltdl/m4/stackovf.m4,v
retrieving revision 1.1
diff -u -p -r1.1 stackovf.m4
--- ltdl/m4/stackovf.m4 4 May 2005 15:45:44 -0000 1.1
+++ ltdl/m4/stackovf.m4 16 Jun 2006 03:47:04 -0000
@@ -1,7 +1,7 @@
# -*- Autoconf -*-
# stackovf.m4 -- how do we deal with stack overflow?
#
-# Copyright (C) 2000, 2003 Gary V. Vaughan <address@hidden>
+# Copyright (C) 2000, 2003, 2006 Gary V. Vaughan <address@hidden>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -18,17 +18,17 @@
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
-# serial 2
+# serial 3
-# m4_SYS_STACKOVF
+# M4_SYS_STACKOVF
# ---------------
-AC_DEFUN([m4_SYS_STACKOVF],
-[AC_PREREQ(2.56)dnl We use the new compiler based header checking in 2.56
+AC_DEFUN([M4_SYS_STACKOVF],
+[AC_PREREQ([2.56])dnl We use the new compiler based header checking in 2.56
AC_REQUIRE([AC_TYPE_SIGNAL])dnl
-AC_CHECK_HEADERS(siginfo.h, [], [], [AC_INCLUDES_DEFAULT])
-AC_CHECK_FUNCS(sigaction sigaltstack sigstack sigvec)
-AC_MSG_CHECKING(if stack overflow is detectable)
+AC_CHECK_HEADERS([siginfo.h], [], [], [AC_INCLUDES_DEFAULT])
+AC_CHECK_FUNCS([sigaction sigaltstack sigstack sigvec])
+AC_MSG_CHECKING([if stack overflow is detectable])
# Code from Jim Avera <address@hidden>.
# stackovf.c requires:
# 1. Either sigaction with SA_ONSTACK, or sigvec with SV_ONSTACK
@@ -37,39 +37,39 @@ AC_MSG_CHECKING(if stack overflow is det
use_stackovf=no
if test "$ac_cv_func_sigaction" = yes || test "$ac_cv_func_sigvec" = yes; then
if test "$ac_cv_func_sigaltstack" = yes || test "$ac_cv_func_sigstack" =
yes; then
- AC_TRY_LINK([#include <sys/time.h>
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/time.h>
#include <sys/resource.h>
-#include <signal.h>],
- [struct rlimit r; int i; getrlimit (RLIMIT_STACK, &r)
+#include <signal.h>]],
+ [[struct rlimit r; int i; getrlimit (RLIMIT_STACK, &r)
#if (!defined(HAVE_SIGACTION) || !defined(SA_ONSTACK)) \
&& (!defined(HAVE_SIGVEC) || !defined(SV_ONSTACK))
choke me /* SA_ONSTACK and/or SV_ONSTACK are not defined */
-#endif],
- use_stackovf=yes)
+#endif]])],
+ [use_stackovf=yes])
fi
fi
-AC_MSG_RESULT($use_stackovf)
+AC_MSG_RESULT([$use_stackovf])
+AM_CONDITIONAL([STACKOVF], [test "$use_stackovf" = yes])
if test "$use_stackovf" = yes; then
- AC_DEFINE(USE_STACKOVF, 1, [Define to 1 if using stack overflow detection.])
- STACKOVF=stackovf.${U}o
- AC_SUBST(STACKOVF)
- AC_EGREP_HEADER(rlim_t, sys/resource.h, ,
- AC_DEFINE(rlim_t, int,
- [Define to int if rlim_t is not defined in <sys/resource.h>.]))
- AC_EGREP_HEADER(stack_t, signal.h, ,
- AC_DEFINE(stack_t, struct sigaltstack,
- [Define to struct sigaltstack if stack_t is not defined in
<sys/signal.h>.]))
- AC_EGREP_HEADER(sigcontext, signal.h,
- AC_DEFINE(HAVE_SIGCONTEXT, 1,
- [Define to 1 if <signal.h> declares sigcontext.]))
- AC_EGREP_HEADER(siginfo_t, signal.h,
- AC_DEFINE(HAVE_SIGINFO_T, 1,
- [Define to 1 if <signal.h> declares siginfo_t.]))
+ AC_DEFINE([USE_STACKOVF], [1],
+ [Define to 1 if using stack overflow detection.])
+ AC_EGREP_HEADER([rlim_t], [sys/resource.h], [],
+ [AC_DEFINE([rlim_t], [int],
+ [Define to int if rlim_t is not defined in <sys/resource.h>.])])
+ AC_EGREP_HEADER([stack_t], [signal.h], [],
+ [AC_DEFINE([stack_t], [struct sigaltstack],
+ [Define to struct sigaltstack if stack_t is not defined in
<sys/signal.h>.])])
+ AC_EGREP_HEADER([sigcontext], [signal.h],
+ [AC_DEFINE([HAVE_SIGCONTEXT], [1],
+ [Define to 1 if <signal.h> declares sigcontext.])])
+ AC_EGREP_HEADER([siginfo_t], [signal.h],
+ [AC_DEFINE([HAVE_SIGINFO_T], [1],
+ [Define to 1 if <signal.h> declares siginfo_t.])])
- AC_TRY_COMPILE([#include <signal.h>],
- [struct sigaltstack x; x.ss_base = 0;],
- AC_DEFINE(ss_sp, ss_base,
- [Define to ss_base if stack_t has ss_base instead of ss_sp.]))
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
+ [[struct sigaltstack x; x.ss_base = 0;]])],
+ [AC_DEFINE([ss_sp], [ss_base],
+ [Define to ss_base if stack_t has ss_base instead of ss_sp.])])
fi
-])# m4_SYS_STACKOVF
+])# M4_SYS_STACKOVF
- Re: changing compiler flags at configure time,
Eric Blake <=