--- gcc/config/a29k/xm-unix.h	2018/04/24 18:10:25	1.1.1.1
+++ gcc/config/a29k/xm-unix.h	2018/04/24 18:15:31	1.1.1.2
@@ -1,5 +1,5 @@
 /* Configuration for GNU C-compiler for AMD Am29000 processor. 
-   Copyright (C) 1987, 1988 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1988, 1993 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -38,10 +38,5 @@ the Free Software Foundation, 675 Mass A
 #define SUCCESS_EXIT_CODE 0
 #define FATAL_EXIT_CODE 33
 
-/* If compiled with GNU C, use the built-in alloca */
-#ifdef __GNUC__
-#define alloca __builtin_alloca
-#endif
-
 /* Ultra is V7, which is closest to USG.  */
 #define USG