[jit] Fix 4c0df6de333fe18abb97fbc7ea8f6e77d92f5451, use __GNUC__ instead of GNUC.

diff --git a/mono/mini/mini-exceptions.c b/mono/mini/mini-exceptions.c
index a7c086cf08915480d65356d2a17021afa9f89f45..099e6e10dd03ccda34fd010318f18e52b37674e5 100644 (file)
--- a/mono/mini/mini-exceptions.c
+++ b/mono/mini/mini-exceptions.c
@@ -642,7 +642,7 @@ unwinder_init (Unwinder *unwinder)
        memset (unwinder, 0, sizeof (Unwinder));
 }
 
-#if defined(GNUC) && defined(TARGET_ARM64)
+#if defined(__GNUC__) && defined(TARGET_ARM64)
 /* gcc 4.9.2 seems to miscompile this on arm64 */
 static __attribute__((optimize("O0"))) gboolean
 #else