X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/8a86eef0fa29d277dc0eae1892ea94c48c3e2ba2..f3a4495d67a3c6692c963c7a7dcd46fd6bdafb7b:/data/glr.c

diff --git a/data/glr.c b/data/glr.c
index 410c4500..49588fe1 100644
--- a/data/glr.c
+++ b/data/glr.c
@@ -4,27 +4,22 @@
 # Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
 # Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-
+#
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301  USA
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
 m4_include(b4_pkgdatadir/[c.m4])
 
-b4_push_if([
-b4_complain([[non-deterministic push parsers are not yet supported]])])
-
 ## ---------------- ##
 ## Default values.  ##
 ## ---------------- ##
@@ -39,6 +34,13 @@ m4_define_default([b4_stack_depth_init],  [200])
 ## Pure/impure interfaces.  ##
 ## ------------------------ ##
 
+b4_define_flag_if([pure])
+# If glr.cc is including this file and thus has already set b4_pure_flag, don't
+# change the value of b4_pure_flag, and don't record a use of api.pure.
+m4_ifndef([b4_pure_flag],
+[b4_percent_define_default([[api.pure]], [[false]])
+ m4_define([b4_pure_flag],
+           [b4_percent_define_flag_if([[api.pure]], [[1]], [[0]])])])
 
 # b4_user_formals
 # ---------------