2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
	* doc/invoke.texi (C++ Dialect Options): Document 
	-fno-use-cxa-get-exception-ptr.
	* configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
	* configure: Regenerate.
	* c.opt (fuse-cxa-get-exception-ptr): New.
	* c-opts.c (c_common_handle_option): Handle
	OPT_fuse_cxa_get_exception_ptr.
	* c-common.c (flag_use_cxa_atexit): Update documentation.
	(flag_use_cxa_get_exception_ptr): New.
	* c-common.h (flag_use_cxa_get_exception_ptr): New.
	* config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
	documentation.
	(C_COMMON_OVERRIDE_OPTIONS): New.

Index: gcc/testsuite/ChangeLog
2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* g++.dg/eh/uncaught1.C: Add dg-options for ppc-darwin.
	* g++.dg/eh/uncaught2.C: New.
	* g++.dg/eh/uncaught3.C: New.

Index: gcc/cp/ChangeLog
2006-02-24  Geoffrey Keating  <geoffk@apple.com>

	* except.c (expand_start_catch_block): Handle
	flag_use_cxa_get_exception_ptr.

From-SVN: r111427