(malloc): Undef before defining, since stdlib.h may have defined it.

diff --git a/lib/alloca.c b/lib/alloca.c
index 55a80677f78b85d223cf96436a08af52b667fdf2..836c50319d3ed2c3527c1884cd22cf4492388058 100644 (file)
--- a/lib/alloca.c
+++ b/lib/alloca.c
@@ -88,6 +88,7 @@ typedef char *pointer;
    Callers below should use malloc.  */
 
 #  ifndef emacs
+#   undef malloc
 #   define malloc xmalloc
 #  endif
 extern pointer malloc ();