ext/kgio/kgio.h in kgio-2.9.0 vs ext/kgio/kgio.h in kgio-2.9.0.2.gf33a

@@ -94,6 +94,12 @@
 /* we don't need these variants, we call kgio_autopush_send/recv directly */
 static inline void kgio_autopush_write(VALUE io) { }
 #else
 static inline void kgio_autopush_write(VALUE io) { kgio_autopush_send(io); }
 #endif
+
+/* prefer rb_str_subseq because we don't use negative offsets */
+#ifndef HAVE_RB_STR_SUBSEQ
+#define rb_str_subseq rb_str_substr
+#endif
+
 #endif /* KGIO_H */