Makefile.am (new-abi-baseline): Create baseline directory.

	* testsuite/Makefile.am (new-abi-baseline): Create baseline
	directory.
	(baseline_file): Use baseline_dir.
	(baseline_dir): New.
	(mkinstalldirs): New.

	* acinclude.m4: Rename baseline_file to baseline_dir, strip
	filename from baseline_dir.

	* testsuite/Makefile.in: Regenerated.
	* Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* configure: Regenerated.

From-SVN: r68136