Fix inverted compilation condition; fix
MODIFY
src/numeric.c
src/numeric.c
@@ -1347,7 +1347,7 @@ mrb_num_minus(mrb_state *mrb, mrb_value x, mrb_value y)
if (mrb_fixnum_p(x)) {
return fixnum_minus(mrb, x, y);
}
-#ifdef MRB_WITHOUT_FLOAT
+#ifndef MRB_WITHOUT_FLOAT
if (mrb_float_p(x)) {
return mrb_float_value(mrb, mrb_float(x) - mrb_to_flo(mrb, y));
}

Fix inverted compilation condition; fix #4478