Clarify minimum needed bison version.

* gettext-tools/src/cldr-plural.y: Add %require declaration.

diff --git a/gettext-tools/src/cldr-plural.y b/gettext-tools/src/cldr-plural.y
index ae2d4ee7052ce3f1f4c76d226a62f84866f6bbf8..51fc960aeb4b8181988ebbb88ff331ff3cf75f2e 100644 (file)
--- a/gettext-tools/src/cldr-plural.y
+++ b/gettext-tools/src/cldr-plural.y
@@ -1,5 +1,5 @@
 /* Unicode CLDR plural rule parser and converter
-   Copyright (C) 2015 Free Software Foundation, Inc.
+   Copyright (C) 2015, 2020 Free Software Foundation, Inc.
 
    This file was written by Daiki Ueno <ueno@gnu.org>, 2015.
 
@@ -120,6 +120,8 @@ new_range (struct cldr_plural_operand_ty *start,
 }
 %}
 
+%require "3.0"
+
 %parse-param {struct cldr_plural_parse_args *arg}
 %lex-param {struct cldr_plural_parse_args *arg}
 %define api.pure full