--- gcc/config/m68k/xm-crds.h	2018/04/24 18:10:24	1.1
+++ gcc/config/m68k/xm-crds.h	2018/04/24 18:14:27	1.1.1.2
@@ -15,7 +15,5 @@
 
 #ifndef __GNUC__
 #define USE_C_ALLOCA
-#else
-#define alloca __builtin_alloca
 #endif