Index: ChangeLog
===================================================================
RCS file: /cvsroot/bison/bison/ChangeLog,v
retrieving revision 1.164
diff -u -r1.164 ChangeLog
--- ChangeLog	2001/08/13 21:10:10	1.164
+++ ChangeLog	2001/08/13 21:30:45
@@ -1,5 +1,10 @@
 2001-08-13  Marc Autret  <address@hidden>
 
+	* src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users 
+	defining it (defined but null disables alloca).
+
+2001-08-13  Marc Autret  <address@hidden>
+
 	* src/bison.simple (_yy_memcpy): CPP reformat.
 
 2001-08-13  Pascal Bart  <address@hidden>
Index: src/bison.simple
===================================================================
RCS file: /cvsroot/bison/bison/src/bison.simple,v
retrieving revision 1.52
diff -u -r1.52 bison.simple
--- src/bison.simple	2001/08/13 21:10:10	1.52
+++ src/bison.simple	2001/08/13 21:30:47
@@ -30,14 +30,14 @@
 
 #ifndef YYSTACK_USE_ALLOCA
 # ifdef alloca
-#  define YYSTACK_USE_ALLOCA
+#  define YYSTACK_USE_ALLOCA 1
 # else /* alloca not defined */
 #  ifdef __GNUC__
-#   define YYSTACK_USE_ALLOCA
+#   define YYSTACK_USE_ALLOCA 1
 #   define alloca __builtin_alloca
 #  else /* not GNU C.  */
 #   if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386))
-#    define YYSTACK_USE_ALLOCA
+#    define YYSTACK_USE_ALLOCA 1
 #    include <alloca.h>
 #   else /* not sparc */
      /* We think this test detects Watcom and Microsoft C.  */
@@ -55,13 +55,13 @@
 	  namespace.  So I turned it off.  rms, 2 May 1997.  */
        /* #include <malloc.h>  */
  #pragma alloca
-#      define YYSTACK_USE_ALLOCA
+#      define YYSTACK_USE_ALLOCA 1
 #     else /* not MSDOS, or __TURBOC__, or _AIX */
 #      if 0
 	/* address@hidden says this works for HPUX 9.05 and up, and on
 	   HPUX 10.  Eventually we can turn this on.  */
 #       ifdef __hpux
-#        define YYSTACK_USE_ALLOCA
+#        define YYSTACK_USE_ALLOCA 1
 #        define alloca __builtin_alloca
 #  	endif /* __hpux */
 #      endif
@@ -72,7 +72,7 @@
 # endif /* alloca not defined */
 #endif /* YYSTACK_USE_ALLOCA not defined */
 
-#ifdef YYSTACK_USE_ALLOCA
+#if YYSTACK_USE_ALLOCA
 # define YYSTACK_ALLOC alloca
 #else
 # define YYSTACK_ALLOC malloc