darwin.h (SUBTARGET_C_COMMON_OVERRIDE_OPTIONS): Only set sjlj exceptions for NeXT/m32.

gcc:

	* config/darwin.h (SUBTARGET_C_COMMON_OVERRIDE_OPTIONS):
	Only set sjlj exceptions for NeXT/m32.

From-SVN: r168018

gcc/ChangeLog

 2010-12-18  Iain Sandoe  <iains@gcc.gnu.org>
 
+	* config/darwin.h (SUBTARGET_C_COMMON_OVERRIDE_OPTIONS):
+	Only set sjlj exceptions for NeXT/m32.
+
+2010-12-18  Iain Sandoe  <iains@gcc.gnu.org>
+
 	* config/darwin.h (GCC_DRIVER_HOST_INITIALIZATION):
 	Only expose when not building for target.
 

gcc/config/darwin.h

@@ -140,6 +140,11 @@ extern GTY(()) int darwin_ms_struct;
   } while (0)
 
 #define SUBTARGET_C_COMMON_OVERRIDE_OPTIONS do {                        \
+  /* Sort out ObjC exceptions: If the runtime is NeXT we default to	\
+     sjlj for m32 only.  */						\
+  if (!global_options_set.x_flag_objc_sjlj_exceptions)			\
+    global_options.x_flag_objc_sjlj_exceptions = 			\
+				flag_next_runtime && !TARGET_64BIT;	\
     if (flag_mkernel || flag_apple_kext)				\
       {									\
 	if (flag_use_cxa_atexit == 2)					\