darwin.h (ASM_DEBUG_SPEC): New.

gcc:

	* config/darwin.h (ASM_DEBUG_SPEC): New.
	* config/darwin9.h (ASM_DEBUG_SPEC): New.

From-SVN: r181507

gcc/ChangeLog

+2011-11-19  Iain Sandoe  <iains@gcc.gnu.org>
+
+	* config/darwin.h (ASM_DEBUG_SPEC): New.
+	* config/darwin9.h (ASM_DEBUG_SPEC): New.
+
 2011-11-18  Jan Hubicka  <jh@suse.cz>
 
 	* config/i386/i386.c (atom_cost): Disable SSE loop until alignment

gcc/config/darwin.h

@@ -395,6 +395,11 @@ extern GTY(()) int darwin_ms_struct;
   %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
   %{static}"
 
+/* Default ASM_DEBUG_SPEC.  Darwin's as cannot currently produce dwarf
+   debugging data.  */
+
+#define ASM_DEBUG_SPEC  "%{g*:%{!g0:%{!gdwarf*:--gstabs}}}"
+
 /* We still allow output of STABS.  */
 
 #define DBX_DEBUGGING_INFO 1

gcc/config/darwin9.h

@@ -41,6 +41,12 @@ along with GCC; see the file COPYING3.  If not see
      %{mdynamic-no-pic: %n'-mdynamic-no-pic' overrides '-pie', '-fpie' or '-fPIE'; \
       :-pie}}"
 
+/* Only ask as for debug data if the debug style is stabs (since as doesn't
+   yet generate dwarf.)  */
+
+#undef  ASM_DEBUG_SPEC
+#define ASM_DEBUG_SPEC  "%{g*:%{!g0:%{gstabs:--gstabs}}}"
+
 #undef  ASM_OUTPUT_ALIGNED_COMMON
 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)		\
   do {									\