diff -ur bison-1.25-ref/bison.simple bison-1.25/bison.simple
--- bison-1.25-ref/bison.simple	Sat May 11 15:13:26 1996
+++ bison-1.25/bison.simple	Thu Apr 24 08:14:35 1997
@@ -38,13 +38,18 @@
  #pragma alloca
 #else /* not MSDOS, __TURBOC__, or _AIX */
 #ifdef __hpux
+#include <sys/types.h>
+#ifdef _ULONG_T /* defined in <sys/types.h> on HP-UX 10 */
+#include <alloca.h>
+#else /* earlier HP-UX versions have alloca as a library function */
 #ifdef __cplusplus
 extern "C" {
 void *alloca (unsigned int);
 };
 #else /* not __cplusplus */
-void *alloca ();
+#define alloca __builtin_alloca
 #endif /* not __cplusplus */
+#endif /* HP-UX <= 9 */
 #endif /* __hpux */
 #endif /* not _AIX */
 #endif /* not MSDOS, or __TURBOC__ */
@@ -153,6 +158,11 @@
 int yyparse (void);
 #endif
 
+/* Define __yy_memcpy.  Note that the size argument
+   should be passed with type unsigned int, because that is what the non-GCC
+   definitions require.  With GCC, __builtin_memcpy takes an arg
+   of type size_t, but it can handle unsigned int.  */
+
 #if __GNUC__ > 1		/* GNU C and GNU C++ define this.  */
 #define __yy_memcpy(TO,FROM,COUNT)	__builtin_memcpy(TO,FROM,COUNT)
 #else				/* not GNU C or C++ */
@@ -164,7 +174,7 @@
 __yy_memcpy (to, from, count)
      char *to;
      char *from;
-     int count;
+     unsigned int count;
 {
   register char *f = from;
   register char *t = to;
@@ -179,7 +189,7 @@
 /* This is the most reliable way to avoid incompatibilities
    in available built-in functions on various systems.  */
 static void
-__yy_memcpy (char *to, char *from, int count)
+__yy_memcpy (char *to, char *from, unsigned int count)
 {
   register char *f = from;
   register char *t = to;
@@ -331,12 +341,15 @@
       if (yystacksize > YYMAXDEPTH)
 	yystacksize = YYMAXDEPTH;
       yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
-      __yy_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp));
+      __yy_memcpy ((char *)yyss, (char *)yyss1,
+		   (unsigned int) size * sizeof (*yyssp));
       yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
-      __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
+      __yy_memcpy ((char *)yyvs, (char *)yyvs1,
+		   (unsigned int) size * sizeof (*yyvsp));
 #ifdef YYLSP_NEEDED
       yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
-      __yy_memcpy ((char *)yyls, (char *)yyls1, size * sizeof (*yylsp));
+      __yy_memcpy ((char *)yyls, (char *)yyls1,
+		   (unsigned int) size * sizeof (*yylsp));
 #endif
 #endif /* no yyoverflow */
 
--