[PATCH] Fix thread-safety follow-out for cross builds (PR libfortran/24991)

[François-Xavier Coudert]

> Ok for HEAD/4.1?
>
> 2005-11-23  Jakub Jelinek  <jakub@redhat.com>
>
>         PR libfortran/24991
>         * acinclude.m4: Include acx.m4 and no-executables.m4.
>         * configure.ac: Add GCC_TOPLEVEL_SUBDIRS.
>         * configure: Rebuilt.
>         * Makefile.am (AM_CPPFLAGS): Use $(host_subdir) in build dir
>         path.
>         * Makefile.in: Rebuilt.

OK. Please wait a few days before backporting it to 4.1.

FX