winnt.h: Added GCC variant of DEFAULT_UNREACHABLE macro.

15448724 · Jacek Caban · Alexandre Julliard · 61dafbb7 · 15448724
Commit 15448724 authored Mar 13, 2013 by Jacek Caban Committed by Alexandre Julliard Mar 13, 2013
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winnt.h include/winnt.h +3 -1

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--- a/include/winnt.h
+++ b/include/winnt.h
@@ -376,8 +376,10 @@ extern "C" {
 /* Eliminate Microsoft C/C++ compiler warning 4715 */
 #if defined(_MSC_VER) && (_MSC_VER > 1200)
 # define DEFAULT_UNREACHABLE default: __assume(0)
+#elif defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))))
+# define DEFAULT_UNREACHABLE default: __builtin_unreachable()
 #else
-# define DEFAULT_UNREACHABLE
+# define DEFAULT_UNREACHABLE default:
 #endif

 /* Error Masks */