--- MacRuby/trunk/string.c 2010-03-18 08:01:14 UTC (rev 3804)
+++ MacRuby/trunk/string.c 2010-03-18 08:04:59 UTC (rev 3805)
@@ -1245,7 +1245,7 @@
VALUE
mr_enc_s_is_compatible(VALUE klass, SEL sel, VALUE str1, VALUE str2)
{
- rb_encoding_t *encoding = str_compatible_encoding(RSTR(str1),
+ rb_encoding_t *encoding = str_compatible_encoding(str_need_string(str1),
str_need_string(str2));
if (encoding == NULL) {
return Qnil;