%union: fix the support for named %union

[bison.git] / data / bison.m4

diff --git a/data/bison.m4 b/data/bison.m4
index c416c6c28febce470927e8b7f7aabdd9998b8716..da59baf55615b67b387033ed84ef12f5abc82274 100644 (file)
--- a/data/bison.m4
+++ b/data/bison.m4
@@ -1061,3 +1061,6 @@ b4_percent_define_ifdef([api.value.type],
                 [['%s' and '%s' cannot be used together]],
                 [%yacc],
                 [%define api.value.type "union"])])])])
+
+# api.value.union.name.
+b4_percent_define_check_kind([api.value.union.name], [keyword])