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dnl Copied from Audacity 1.3.10 which itself is licensed under the GPL v2 or
dnl any later version
dnl Function to configure a sub-library now, because we need to know the result
dnl of the configuration now in order to take decisions.
dnl We don't worry about whether the configuration worked or not - it is
dnl assumed that the next thing after this will be a package-specific check to
dnl see if the package is actually available. (Hint: use pkg-config and
dnl -uninstalled.pc files if available).
dnl code based on a simplification of _AC_OUTPUT_SUBDIRS in
dnl /usr/share/autoconf/autoconf/status.m4 which implements part of
dnl AC_CONFIG_SUBDIRS
AC_DEFUN([AX_CONFIG_DIR],
[AC_REQUIRE([AC_DISABLE_OPTION_CHECKING])]
[m4_append([_AC_LIST_SUBDIRS], [$1], [])]
[
# Remove --cache-file and --srcdir arguments so they do not pile up.
ax_sub_configure_args=
ax_prev=
eval "set x $ac_configure_args"
shift
for ax_arg
do
if test -n "$ax_prev"; then
ax_prev=
continue
fi
case $ax_arg in
-cache-file | --cache-file | --cache-fil | --cache-fi \
| --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
ax_prev=cache_file ;;
-cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
| --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
| --c=*)
;;
--config-cache | -C)
;;
-srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
ax_prev=srcdir ;;
-srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
;;
-prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
ax_prev=prefix ;;
-prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
;;
*)
case $ax_arg in
*\'*) ax_arg=`echo "$ax_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
esac
ax_sub_configure_args="$ax_sub_configure_args '$ax_arg'" ;;
esac
done
# Always prepend --prefix to ensure using the same prefix
# in subdir configurations.
ax_arg="--prefix=$prefix"
case $ax_arg in
*\'*) ax_arg=`echo "$ax_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
esac
ax_sub_configure_args="'$ax_arg' $ax_sub_configure_args"
# Pass --silent
if test "$silent" = yes; then
ax_sub_configure_args="--silent $ax_sub_configure_args"
fi
ax_popdir=`pwd`
AC_MSG_NOTICE([Configuring sources in $1])
dnl for out-of-place builds srcdir and builddir will be different, and
dnl builddir may not exist, so we must create it
AS_MKDIR_P(["$1"])
dnl and also set the variables. As this isn't autoconf, the following may be
dnl risky:
_AC_SRCDIRS(["$1"])
cd "$1"
# Check for guested configure; otherwise get Cygnus style configure.
if test -f "configure.gnu"; then
ax_sub_configure=$ac_srcdir/configure.gnu
elif test -f "$ac_srcdir/configure"; then
ax_sub_configure=$ac_srcdir/configure
elif test -f "$ac_srcdir/configure.in"; then
# This should be Cygnus configure.
ax_sub_configure=$ac_aux_dir/configure
else
AC_MSG_WARN([no configuration information is in $1])
ax_sub_configure=
fi
# The recursion is here.
if test -n "$ax_sub_configure"; then
# Make the cache file name correct relative to the subdirectory.
case $cache_file in
[[\\/]]* | ?:[[\\/]]* ) ax_sub_cache_file=$cache_file ;;
*) # Relative name.
ax_sub_cache_file=$ac_top_build_prefix$cache_file ;;
esac
AC_MSG_NOTICE([running $SHELL $ax_sub_configure $ax_sub_configure_args --cache-file=$ax_sub_cache_file --srcdir=$ac_srcdir])
# The eval makes quoting arguments work.
eval "\$SHELL \"\$ax_sub_configure\" $ax_sub_configure_args \
--cache-file=\"\$ax_sub_cache_file\" --srcdir=\"\$ax_srcdir\""
fi
cd "$ax_popdir"
AC_MSG_NOTICE([Done configuring in $1])
])
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