diff --git a/ChangeLog b/ChangeLog
index e62f4a41e0..171be67d98 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Sep  7 23:27:05 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (path_check_0, fpath_check): disable path check on cygwin.
+	  [ruby-talk:213074]
+
 Thu Sep  7 01:54:22 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* string.c (sym_equal): override.  check equivalence.
diff --git a/file.c b/file.c
index 46481980d6..d5f005aa76 100644
--- a/file.c
+++ b/file.c
@@ -4044,7 +4044,15 @@ is_absolute_path(const char *path)
     return 0;
 }
 
-#ifndef DOSISH
+#ifndef ENABLE_PATH_CHECK
+# if defined DOSISH || defined __CYGWIN__
+#   define ENABLE_PATH_CHECK 0
+# else
+#   define ENABLE_PATH_CHECK 1
+# endif
+#endif
+
+#if ENABLE_PATH_CHECK
 static int
 path_check_0(VALUE path, int execpath)
 {
@@ -4089,7 +4097,7 @@ path_check_0(VALUE path, int execpath)
 static int
 fpath_check(const char *path)
 {
-#ifndef DOSISH
+#if ENABLE_PATH_CHECK
     return path_check_0(rb_str_new2(path), Qfalse);
 #else
     return 1;
@@ -4099,7 +4107,7 @@ fpath_check(const char *path)
 int
 rb_path_check(const char *path)
 {
-#ifndef DOSISH
+#if ENABLE_PATH_CHECK
     const char *p0, *p, *pend;
     const char sep = PATH_SEP_CHAR;