9ebed606b2
2007-05-27 Paolo Bonzini <bonzini@gnu.org> * confsubdir.m4: Move here from newlib. From-SVN: r125124
128 lines
4.1 KiB
Plaintext
128 lines
4.1 KiB
Plaintext
dnl Fix Autoconf-2.59 AC_CONFIG_SUBDIRS whitespace mangling,
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dnl by overriding the broken internal Autoconf macro with a
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dnl backport of the 2.60 fix.
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dnl
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dnl This file should be a no-op for Autoconf versions != 2.59.
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dnl It can be removed once the complete tree has moved to a
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dnl newer Autoconf version.
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dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro.
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dnl We use it because this fix is intended for 2.59 only.
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dnl A feature test for the broken AC_CONFIG_SUBDIRS instead
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dnl would be better but is tricky.
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dnl
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dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13.
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dnl Redefine AC_CONFIG_SUBDIRS so aclocal pulls in this file
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dnl when needed.
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ifdef([m4_PACKAGE_VERSION],
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[ifelse(m4_PACKAGE_VERSION, [2.59], [
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dnl Redefine AC_CONFIG_SUBDIRS so this file is picked up if needed.
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AC_DEFUN([AC_CONFIG_SUBDIRS], defn([AC_CONFIG_SUBDIRS]))
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dnl Override the broken macro.
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# _AC_OUTPUT_SUBDIRS
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# ------------------
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# This is a subroutine of AC_OUTPUT, but it does not go into
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# config.status, rather, it is called after running config.status.
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m4_define([_AC_OUTPUT_SUBDIRS],
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[
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#
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# CONFIG_SUBDIRS section, as fixed in confsubdir.m4.
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#
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if test "$no_recursion" != yes; then
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# Remove --cache-file and --srcdir arguments so they do not pile up.
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ac_sub_configure_args=
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ac_prev=
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eval "set x $ac_configure_args"
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shift
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for ac_arg
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do
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if test -n "$ac_prev"; then
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ac_prev=
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continue
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fi
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case $ac_arg in
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-cache-file | --cache-file | --cache-fil | --cache-fi \
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| --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
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ac_prev=cache_file ;;
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-cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
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| --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
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| --c=*)
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;;
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--config-cache | -C)
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;;
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-srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
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ac_prev=srcdir ;;
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-srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
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;;
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-prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
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ac_prev=prefix ;;
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-prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
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;;
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*)
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case $ac_arg in
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*\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
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esac
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ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
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esac
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done
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# Always prepend --prefix to ensure using the same prefix
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# in subdir configurations.
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ac_arg="--prefix=$prefix"
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case $ac_arg in
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*\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
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esac
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ac_sub_configure_args="$ac_arg $ac_sub_configure_args"
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ac_popdir=`pwd`
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for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
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# Do not complain, so a configure script can configure whichever
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# parts of a large source tree are present.
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test -d "$srcdir/$ac_dir" || continue
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AC_MSG_NOTICE([configuring in $ac_dir])
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AS_MKDIR_P(["$ac_dir"])
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_AC_SRCPATHS(["$ac_dir"])
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cd "$ac_dir"
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# Check for guested configure; otherwise get Cygnus style configure.
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if test -f "$ac_srcdir/configure.gnu"; then
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ac_sub_configure=$ac_srcdir/configure.gnu
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elif test -f "$ac_srcdir/configure"; then
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ac_sub_configure=$ac_srcdir/configure
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elif test -f "$ac_srcdir/configure.in"; then
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# This should be Cygnus configure.
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ac_sub_configure=$ac_aux_dir/configure
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else
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AC_MSG_WARN([no configuration information is in $ac_dir])
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ac_sub_configure=
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fi
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# The recursion is here.
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if test -n "$ac_sub_configure"; then
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# Make the cache file name correct relative to the subdirectory.
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case $cache_file in
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[[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
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*) # Relative path.
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ac_sub_cache_file=$ac_top_builddir$cache_file ;;
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esac
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AC_MSG_NOTICE([running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
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# The eval makes quoting arguments work.
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eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
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--cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
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AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir])
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fi
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cd "$ac_popdir"
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done
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fi
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])# _AC_OUTPUT_SUBDIRS
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])])
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