Remove/replace some macros incompatible with Autoconf 2.59.

Revert some Andreas' changes so as to check the -std=c99
compiler option.
Put custom macros in acinclude.m4.


git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@145 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 96 insertions, 0 deletions

diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000..2c97e00
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,96 @@
+##### http://autoconf-archive.cryp.to/ax_c_check_flag.html
+#
+# SYNOPSIS
+#
+#
+AX_C_CHECK_FLAG(FLAG-TO-CHECK,[PROLOGUE],[BODY],[ACTION-IF-SUCCESS],[ACTION-IF-FAILURE])
+#
+# DESCRIPTION
+#
+#   This macro tests if the C compiler supports the flag FLAG-TO-CHECK.
+#   If successfull execute ACTION-IF-SUCCESS otherwise
+#   ACTION-IF-FAILURE. PROLOGUE and BODY are optional and should be
+#   used as in AC_LANG_PROGRAM macro.
+#
+#   This code is inspired from KDE_CHECK_COMPILER_FLAG macro. Thanks to
+#   Bogdan Drozdowski <bogdandr@op.pl> for testing and bug fixes.
+#
+# LAST MODIFICATION
+#
+#   2007-11-26
+#
+# COPYLEFT
+#
+#   Copyright (c) 2007 Francesco Salvestrini <salvestrini@users.sourceforge.net>
+#
+#   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., 59 Temple Place - Suite 330, Boston, MA
+#   02111-1307, USA.
+#
+#   As a special exception, the respective Autoconf Macro's copyright
+#   owner gives unlimited permission to copy, distribute and modify the
+#   configure scripts that are the output of Autoconf when processing
+#   the Macro. You need not follow the terms of the GNU General Public
+#   License when using or distributing such scripts, even though
+#   portions of the text of the Macro appear in them. The GNU General
+#   Public License (GPL) does govern all other use of the material that
+#   constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the
+#   Autoconf Macro released by the Autoconf Macro Archive. When you
+#   make and distribute a modified version of the Autoconf Macro, you
+#   may extend this special exception to the GPL to apply to your
+#   modified version as well.
+
+AC_DEFUN([AX_C_CHECK_FLAG],[
+# modification AE: require only 2.59; then we do not have AC_PROG_SED
+#  AC_PREREQ([2.61])
+  AC_PREREQ([2.59])
+  AC_REQUIRE([AC_PROG_CC])
+# modification AE
+#  AC_REQUIRE([AC_PROG_SED])
+
+
+  flag=`echo "$1" | $SED 'y% .=/+-(){}<>:*,%_______________%'`
+
+  AC_CACHE_CHECK([whether the C compiler accepts the $1 flag],
+    [ax_cv_c_check_flag_$flag],[
+
+    AC_LANG_PUSH([C])
+
+    save_CFLAGS="$CFLAGS"
+    CFLAGS="$CFLAGS $1"
+
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([$2],[$3])
+    ],[
+      eval "ax_cv_c_check_flag_$flag=yes"
+    ],[
+      eval "ax_cv_c_check_flag_$flag=no"
+    ])
+
+    CFLAGS="$save_CFLAGS"
+
+    AC_LANG_POP
+
+  ])
+
+  AS_IF([eval "test \"`echo '$ax_cv_c_check_flag_'$flag`\" = yes"],[
+   :
+    $4
+  ],[
+   :
+    $5
+  ])
+])