libstdc++-v3/:
	* configure.ac: Replace AC_CONFIG_COMMANDS([default])
	instantiation with additional commands issued for each Makefile
	in glibcxx_SUBDIRS, so `./config.status subdir/Makefile' also
	runs these commands.
	Add a separate AC_CONFIG_COMMANDS([generate-headers]) for
	running `make' in include, passing `pch_build=' to `make'.
	* configure: Regenerate.

From-SVN: r151352