+dnl Package options
+dnl ===============
+
+dnl enabled external libFirm plugins
+dnl -------------
+AC_MSG_CHECKING([for external libfirm plugins])
+AC_ARG_WITH(plugins,
+[ --with-plugins=list include external libfirm plugins list (space separated)],
+[
+ plugin_subdirs=$withval
+ plugin_files=
+ for i in $withval ; do
+ plugin_files="$i/Makefile $plugin_files"
+ done
+ ac_output_file="$ac_output_file $plugin_files"
+],
+[
+ plugin_files=
+ plugin_subdirs=
+])
+AC_SUBST(plugin_subdirs)
+if test "$plugin_subdirs" == ""; then
+ AC_MSG_RESULT([disabled])
+else
+ AC_MSG_RESULT([$plugin_subdirs])
+fi
+