re PR target/66655 (miscompilation due to ipa-ra on MinGW)

	PR target/66655
	* config/i386/cygming.h (MAKE_DECL_ONE_ONLY): Remove definition.

From-SVN: r232785

gcc/ChangeLog

+2016-01-25  Nick Clifton  <nickc@redhat.com>
+
+	PR target/66655
+	* config/i386/cygming.h (MAKE_DECL_ONE_ONLY): Remove definition.
+
 2016-01-23  Tom de Vries  <tom@codesourcery.com>
 
 	PR tree-optimization/69426

gcc/config/i386/cygming.h

@@ -433,10 +433,6 @@ do {						\
     }                                 \
   while (0)
 
-/* Use the weak support for ONE_ONLY decls.  */
-#undef  MAKE_DECL_ONE_ONLY
-#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
-
 #endif /* HAVE_GAS_WEAK */
 
 /* FIXME: SUPPORTS_WEAK && TARGET_HAVE_NAMED_SECTIONS is true,