hmm!

Author: Goober5000

code/globalincs/toolchain/gcc.h

@@ -18,7 +18,8 @@
  */
 #pragma once
 
-#if defined(__GNUC__)
+// per toolchain.h, clang takes precedence over gcc if they are both defined
+#if defined(__GNUC__) && !defined(__clang__)
 
 #define SCP_FORMAT_STRING
 #define SCP_FORMAT_STRING_ARGS(x,y)  __attribute__((format(printf, x, y)))