lib: use traditional yacc empty statement

%empty was added in bison 2.7.1, which seems to not be available on some
of the BSDs by default.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

diff --git a/lib/command_parse.y b/lib/command_parse.y
index 6348643b8b2398f3cb44cf2cae0db3c89ced3fea..e381507cc316ceeae3a0c5ef6a6804b8873e0f33 100644 (file)
--- a/lib/command_parse.y
+++ b/lib/command_parse.y
@@ -198,7 +198,7 @@ sentence_root: WORD
 ;
 
 cmd_token_seq:
-  %empty
+  /* empty */
 | cmd_token_seq cmd_token
 ;