[committed]: VMS/ia64 add missing macro in fde-vms.c

[Tristan Gingold]

Hi,

this is a minor adjustment after the move of fde-vms from gcc/ to libgcc/.  
Macro UNW_IVMS_MODE was not defined.
Fixed by this patch, committed on trunk.

Tristan.

libgcc/
2011-12-21  Tristan Gingold  <ging...@adacore.com>

        * config/ia64/fde-vms.c (UNW_IVMS_MODE): Define.


--- a/libgcc/config/ia64/fde-vms.c
+++ b/libgcc/config/ia64/fde-vms.c
@@ -41,6 +41,8 @@
 #define SS$_NORMAL 1
 #endif
 
+#define UNW_IVMS_MODE(HEADER) (((HEADER) >> 44) & 0x3L)
+
 typedef struct
 {
   unsigned long start_offset;