diff -ruN m4-1.4.orig/lib/obstack.h m4-1.4/lib/obstack.h
--- m4-1.4.orig/lib/obstack.h	Sat Nov  5 08:04:21 1994
+++ m4-1.4/lib/obstack.h	Tue May 28 23:55:19 2002
@@ -152,7 +152,11 @@
   char	*object_base;		/* address of object we are building */
   char	*next_free;		/* where to add next char to current object */
   char	*chunk_limit;		/* address of char after current chunk */
+#ifndef __APPLE__
   PTR_INT_TYPE temp;		/* Temporary for some macros.  */
+#else
+  int temp;		/* Ugly gcc3.1 hack on darwin6.0/os x 10.2 */
+#endif
   int   alignment_mask;		/* Mask of alignment for each object. */
   struct _obstack_chunk *(*chunkfun) (); /* User's fcn to allocate a chunk.  */
   void (*freefun) ();		/* User's function to free a chunk.  */