Wrap the GCC pramgas in ifdefs

src/sbbs3/sbbs.h

@@ -105,12 +105,16 @@ extern int	thread_suid_broken;			/* NPTL is no longer broken */
 
 #if defined(JAVASCRIPT)
 #include "comio.h"			/* needed for COM_HANDLE definition only */
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wmisleading-indentation"
-#pragma GCC diagnostic ignored "-Wignored-attributes"
+#if defined(__GNUC__)
+	#pragma GCC diagnostic push
+	#pragma GCC diagnostic ignored "-Wmisleading-indentation"
+	#pragma GCC diagnostic ignored "-Wignored-attributes"
+#endif
 #include <jsversion.h>
 #include <jsapi.h>
-#pragma GCC diagnostic pop
+#if defined(__GNUC_)
+	#pragma GCC diagnostic pop
+#endif
 #define JS_DestroyScript(cx,script)
 
 #define JSSTRING_TO_RASTRING(cx, str, ret, sizeptr, lenptr) \