* libsupc++/Makefile.am (sources): Add guard.cc.
	* libsupc++/Makefile.in: Regenerated.
	* libsupc++/cxxabi.h (__cxa_guard_acquire): New function.
	(__cxa_guard_release): Likewise.
	(__cxa_guard_abort): Likewise.
	* libsupc++/guard.cc: New file.

From-SVN: r59475