[patch, darwin, committed] fix PR49901

[Iain Sandoe]

the following was approved on the PR thread.
cheers,
Iain


gcc:
	PR debug/49901
	* config/darwin.h (DEBUG_MACRO_SECTION): New macro.

Index: gcc/config/darwin.h
===================================================================
--- gcc/config/darwin.h	(revision 178509)
+++ gcc/config/darwin.h	(working copy)
@@ -413,6 +413,7 @@ extern GTY(()) int darwin_ms_struct;
  #define  
DEBUG_PUBTYPES_SECTION	"__DWARF,__debug_pubtypes,regular,debug"
  #define DEBUG_STR_SECTION	"__DWARF,__debug_str,regular,debug"
  #define DEBUG_RANGES_SECTION	"__DWARF,__debug_ranges,regular,debug"
+#define DEBUG_MACRO_SECTION    "__DWARF,__debug_macro,regular,debug"

  #define TARGET_WANT_DEBUG_PUB_SECTIONS true