re PR other/79046 (g++ -print-file-name=plugin uses full version number in path)

re PR other/79046 (g++ -print-file-name=plugin uses full version number in path)

	PR other/79046
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	(ACLOCAL_AMFLAGS): Set to -I .. -I ../config .
	* aclocal.m4: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.

From-SVN: r244895