--- old/./common/autoconf/spec.gmk.in	2013-04-16 21:49:16.975966964 -0400
+++ new/./common/autoconf/spec.gmk.in	2013-04-16 21:49:16.770965060 -0400
@@ -301,6 +301,8 @@
 # CL is cl.exe only.
 COMPILER_TYPE:=@COMPILER_TYPE@
 
+COMPILER_SUPPORTS_TARGET_BITS_FLAG=@COMPILER_SUPPORTS_TARGET_BITS_FLAG@
+
 CC_OUT_OPTION:=@CC_OUT_OPTION@
 EXE_OUT_OPTION:=@EXE_OUT_OPTION@
 LD_OUT_OPTION:=@LD_OUT_OPTION@