diff options
Diffstat (limited to 'config/override.m4')
-rw-r--r-- | config/override.m4 | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/config/override.m4 b/config/override.m4 deleted file mode 100644 index 52bd1c3..0000000 --- a/config/override.m4 +++ /dev/null @@ -1,104 +0,0 @@ -dnl Fix Autoconf bugs by overriding broken internal Autoconf -dnl macros with backports of fixes from newer releases. -dnl -dnl The override bits of this file should be a no-op for the newest -dnl Autoconf version, which means they can be removed once the complete -dnl tree has moved to a new enough Autoconf version. -dnl -dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired -dnl Autoconf version is used. It should be kept for consistency. - -dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13. -ifdef([m4_PACKAGE_VERSION], [ - -dnl Provide m4_copy_force and m4_rename_force for old Autoconf versions. - -m4_ifndef([m4_copy_force], -[m4_define([m4_copy_force], -[m4_ifdef([$2], [m4_undefine([$2])])m4_copy($@)])]) - -m4_ifndef([m4_rename_force], -[m4_define([m4_rename_force], -[m4_ifdef([$2], [m4_undefine([$2])])m4_rename($@)])]) - -dnl AC_DEFUN a commonly used macro so this file is picked up. -m4_copy([AC_PREREQ], [_AC_PREREQ]) -AC_DEFUN([AC_PREREQ], [frob]) -m4_copy_force([_AC_PREREQ], [AC_PREREQ]) - - -dnl Ensure exactly this Autoconf version is used -m4_ifndef([_GCC_AUTOCONF_VERSION], - [m4_define([_GCC_AUTOCONF_VERSION], [2.64])]) - -dnl Test for the exact version when AC_INIT is expanded. -dnl This allows to update the tree in steps (for testing) -dnl by putting -dnl m4_define([_GCC_AUTOCONF_VERSION], [X.Y]) -dnl in configure.ac before AC_INIT, -dnl without rewriting this file. -dnl Or for updating the whole tree at once with the definition above. -AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK], -[m4_if(m4_defn([_GCC_AUTOCONF_VERSION]), - m4_defn([m4_PACKAGE_VERSION]), [], - [m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])]) -]) -m4_define([AC_INIT], m4_defn([AC_INIT])[ -_GCC_AUTOCONF_VERSION_CHECK -]) - - -dnl Ensure we do not use a buggy M4. -m4_if(m4_index([..wi.d.], [.d.]), [-1], - [m4_fatal(m4_do([m4 with buggy strstr detected. Please install -GNU M4 1.4.16 or newer and set the M4 environment variable]))]) - - -dnl Fix 2.64 cross compile detection for AVR and RTEMS -dnl by not trying to compile fopen. -m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64], - [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77], - [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])]) - -m4_version_prereq([2.66],, [ -dnl We need AC_CHECK_DECL which works for overloaded C++ functions. - -# _AC_CHECK_DECL_BODY -# ------------------- -# Shell function body for AC_CHECK_DECL. -m4_define([_AC_CHECK_DECL_BODY], -[ AS_LINENO_PUSH([$[]1]) - [as_decl_name=`echo $][2|sed 's/ *(.*//'`] - [as_decl_use=`echo $][2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`] - AC_CACHE_CHECK([whether $as_decl_name is declared], [$[]3], - [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$[]4], -[@%:@ifndef $[]as_decl_name -@%:@ifdef __cplusplus - (void) $[]as_decl_use; -@%:@else - (void) $[]as_decl_name; -@%:@endif -@%:@endif -])], - [AS_VAR_SET([$[]3], [yes])], - [AS_VAR_SET([$[]3], [no])])]) - AS_LINENO_POP -])# _AC_CHECK_DECL_BODY - -# _AC_CHECK_DECLS(SYMBOL, ACTION-IF_FOUND, ACTION-IF-NOT-FOUND, -# INCLUDES) -# ------------------------------------------------------------- -# Helper to AC_CHECK_DECLS, which generates the check for a single -# SYMBOL with INCLUDES, performs the AC_DEFINE, then expands -# ACTION-IF-FOUND or ACTION-IF-NOT-FOUND. -m4_define([_AC_CHECK_DECLS], -[AC_CHECK_DECL([$1], [ac_have_decl=1], [ac_have_decl=0], [$4])]dnl -[AC_DEFINE_UNQUOTED(AS_TR_CPP(m4_bpatsubst(HAVE_DECL_[$1],[ *(.*])), - [$ac_have_decl], - [Define to 1 if you have the declaration of `$1', - and to 0 if you don't.])]dnl -[m4_ifvaln([$2$3], [AS_IF([test $ac_have_decl = 1], [$2], [$3])])]) - -]) - -]) |