Use `yywarning()` instead of `yywarning_s()` for `MRB_WITHOUT_FLOAT`
@@ -5167,7 +5167,7 @@ parser_yylex(parser_state *p)
tokfix(p);
if (is_float) {
#ifdef MRB_WITHOUT_FLOAT
- yywarning_s(p, "floating point numbers are not supported", tok(p));
+ yywarning(p, "floating point numbers are not supported");
pylval.nd = new_int(p, "0", 10);
return tINTEGER;
#else
