[Piglit] [PATCH 06/12] c99: resolve MSVC 2013 builds

[Emil Velikov]

MSVC 2013 provides _MSC_VER 1800 and __STDC_VERSION__ < 199901L. As
such the preprocessor tries ot evaluate the undefined symbol __GNUC__,
agrees that is less than 3 and we end up with the following error
message:

   include\c99\stdbool.h(39) : error C2632: 'char' followed by 'bool' is
illegal.

Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
---
 include/msvc/c99/stdbool.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/msvc/c99/stdbool.h b/include/msvc/c99/stdbool.h
index dd55255..089f8d4 100644
--- a/include/msvc/c99/stdbool.h
+++ b/include/msvc/c99/stdbool.h
@@ -35,7 +35,7 @@
 #define bool    _Bool
 
 /* For compilers that don't have the builtin _Bool type. */
-#if (defined(_MSC_VER) && _MSC_VER < 1800) || (__STDC_VERSION__ < 199901L && __GNUC__ < 3)
+#if (defined(_MSC_VER) && _MSC_VER < 1800) || (__STDC_VERSION__ < 199901L && defined(__GNUC__) && __GNUC__ < 3)
 typedef unsigned char _Bool;
 #endif
 
-- 
2.0.2