re PR libstdc++/43852 (Embedded systems friendly libstdc++)

2012-09-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
	    Jonathan Wakely  <jwakely.gcc@gmail.com>

	PR libstdc++/43852
	* acinclude.m4 (GLIBCXX_ENABLE_VERBOSE): Define.
	* configure.ac (GLIBCXX_ENABLE_VERBOSE): Use it.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* libsupc++/eh_term_handler.cc (_GLIBCXX_VERBOSE): Check new macro.
	* libsupc++/pure.cc (_GLIBCXX_VERBOSE): Likewise.
	* doc/xml/manual/configure.xml (--disable-libstdcxx-verbose): Document.
	* doc/html/manual/configure.html: Regenerate.

Co-Authored-By: Jonathan Wakely <jwakely.gcc@gmail.com>

From-SVN: r191121