--- a/include/SDL_stdinc.h	Sat May 13 16:30:59 2006 +0000
+++ b/include/SDL_stdinc.h	Sun May 14 05:20:36 2006 +0000
@@ -172,6 +172,8 @@
 #  include <malloc.h>
 # elif defined(__AIX__)
   #pragma alloca
+# elif defined(__MRC__)
+   void *alloca (unsigned);
 # else
    char *alloca ();
 # endif