+# b4_locuser_formals(LOC = yylocp)
+# --------------------------------
+m4_define([b4_locuser_formals],
+[b4_locations_if([, YYLTYPE *m4_default([$1], [yylocp])])[]b4_user_formals])
+
+
+# b4_locuser_args(LOC = yylocp)
+# -----------------------------
+m4_define([b4_locuser_args],
+[b4_locations_if([, m4_default([$1], [yylocp])])[]b4_user_args])
+
+
+