configure.ac (GLIBCXX_ENABLE_DEBUG_FLAGS): Use -gdwarf-4 -g3 -O0.

2012-01-27  Benjamin Kosnik  <bkoz@redhat.com>
	    Matthias Klose  <doko@ubuntu.com>

	* configure.ac (GLIBCXX_ENABLE_DEBUG_FLAGS): Use -gdwarf-4 -g3 -O0.
	* configure.in: Regenerated.
	* src/Makefile.am (all-once, install-data-once): New rules.
	(all-local, install-data-local): Use them.
	(build-debug, install-debug): Tweak.
	* src/Makefile.in: Regenerate.

Co-Authored-By: Matthias Klose <doko@ubuntu.com>

From-SVN: r183599