right-hand sides. Unlike the standard yacc.c template, here we set
the default value of $$ to a zeroed-out value. Since the default
value is undefined, this behavior is technically correct. */
-static YYSTYPE yyval_default;]b4_locations_if([
-b4_yyloc_default_define])[
+static YYSTYPE yyval_default;]b4_locations_if([[
+static YYLTYPE yyloc_default][]b4_yyloc_default;])[
/* Copy the second part of user declarations. */
]b4_user_post_prologue