build: restore C90 compatibility

[bison.git] / data / bison.m4

diff --git a/data/bison.m4 b/data/bison.m4
index 5189a8ba6ea4828626de4a11183186746182b3e2..d01124bb486f936a88e126016ab4616d70fd3300 100644 (file)
--- a/data/bison.m4
+++ b/data/bison.m4
@@ -2,7 +2,7 @@
 
 # Language-independent M4 Macros for Bison.
 
-# Copyright (C) 2002, 2004-2012 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2004-2013 Free Software Foundation, Inc.
 
 # 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
@@ -509,7 +509,7 @@ m4_define([b4_token_format],
 # TAG, TYPE).
 m4_define([b4_type_action_],
 [b4_symbol_if([$1], [has_type],
-[m4_map([b4_symbol_case_], [$@])[]dnl
+[m4_map([      b4_symbol_case_], [$@])[]dnl
         b4_dollar_dollar([b4_symbol([$1], [number])],
                          [b4_symbol([$1], [tag])],
                          [b4_symbol([$1], [type])]);
@@ -541,11 +541,21 @@ m4_define([b4_basename],
 # -----------------------
 m4_define([b4_syncline],
 [b4_flag_if([synclines],
-[b4_sync_end([__line__], [b4_basename(m4_quote(__file__))])
-b4_sync_start([$1], [$2])])])
+[b4_sync_start([$1], [$2]) b4_sync_end([__line__],
+                                       [b4_basename(m4_quote(__file__))])[]dnl
+])])
+
+# b4_sync_start(LINE, FILE)
+# -----------------------
+# Syncline for the new place.  Typically a directive for the compiler.
+m4_define([b4_sync_start], [b4_comment([$2:$1])])
+
+# b4_sync_end(LINE, FILE)
+# -----------------------
+# Syncline for the current place, which ends.  Typically a comment
+# left for the reader.
+m4_define([b4_sync_end],   [b4_comment([$2:$1])])
 
-m4_define([b4_sync_end], [b4_comment([Line $1 of $2])])
-m4_define([b4_sync_start], [b4_comment([Line $1 of $2])])
 
 # b4_user_code(USER-CODE)
 # -----------------------
@@ -567,14 +577,14 @@ m4_define([b4_define_user_code],
 # b4_user_initial_action
 # b4_user_post_prologue
 # b4_user_pre_prologue
-# b4_user_stype
+# b4_user_union_members
 # ----------------------
 # Macros that issue user code, ending with synclines.
 b4_define_user_code([actions])
 b4_define_user_code([initial_action])
 b4_define_user_code([post_prologue])
 b4_define_user_code([pre_prologue])
-b4_define_user_code([stype])
+b4_define_user_code([union_members])
 
 
 # b4_check_user_names(WHAT, USER-LIST, BISON-NAMESPACE)