From e71a6a7b2c8a7217a7efd35f74782d4a2c058cda Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=AA=AA=E5=B1=B1=20=E7=BF=94=E5=A3=AB?=
 <Shouji_Kuboyama@scsk-kyushu.co.jp>
Date: Tue, 12 Dec 2017 17:29:05 +0900
Subject: [PATCH] fixed mruby-io so that the test passes on cygwin

---
 mrbgems/mruby-io/src/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mrbgems/mruby-io/src/file.c b/mrbgems/mruby-io/src/file.c
index 19603c856..17fdeeed5 100644
--- a/mrbgems/mruby-io/src/file.c
+++ b/mrbgems/mruby-io/src/file.c
@@ -200,6 +200,7 @@ mrb_file_basename(mrb_state *mrb, mrb_value klass)
   if ((bname = basename(path)) == NULL) {
     mrb_sys_fail(mrb, "basename");
   }
+  if (strncmp(bname, "//", 3) == 0) bname[1] = '\0';  /* patch for Cygwin */
   return mrb_str_new_cstr(mrb, bname);
 #endif
 }