X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fbison.m4;h=260cba6a60b42b3b55f5112afb10baac6e72a9d1;hb=ba564f2164f381af846d9695e6465cffe7ec918c;hp=bb69123eb389337eca5e5bb266ade2653f23bdb8;hpb=7b8d37027c59392d07473925d8f074e8c8a38f42;p=gnulib.git

diff --git a/m4/bison.m4 b/m4/bison.m4
index bb69123eb..260cba6a6 100644
--- a/m4/bison.m4
+++ b/m4/bison.m4
@@ -1,6 +1,6 @@
-#serial 4
+# serial 5
 
-# Copyright (C) 2002 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2005, 2009, 2010 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -9,10 +9,15 @@ AC_DEFUN([gl_BISON],
 [
   # getdate.y works with bison only.
   : ${YACC='bison -y'}
-  AC_ARG_VAR(YACC,
+dnl
+dnl Declaring YACC & YFLAGS precious will not be necessary after GNULIB
+dnl requires an Autoconf greater than 2.59c, but it will probably still be
+dnl useful to override the description of YACC in the --help output, re
+dnl getdate.y assuming `bison -y'.
+  AC_ARG_VAR([YACC],
 [The `Yet Another C Compiler' implementation to use.  Defaults to `bison -y'.
 Values other than `bison -y' will most likely break on most systems.])dnl
-  AC_ARG_VAR(YFLAGS,
+  AC_ARG_VAR([YFLAGS],
 [YFLAGS contains the list arguments that will be passed by default to Bison.
 This script will default YFLAGS to the empty string to avoid a default value of
 `-d' given by some make applications.])dnl