diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 83cf11c8a..dc5033fc1 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2009-08-10  Corinna Vinschen  <corinna@vinschen.de>
+
+	* spawn.cc (av::fixup): Check shell scripts for executability only on
+	filesystems/mounts supporting real permissions.
+
 2009-08-10  Corinna Vinschen  <corinna@vinschen.de>
 
 	* dtable.cc (DEV_SOCKET): New static WCHAR string.  Name of
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index 4aafe6bae..c5b5bee9a 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -1083,7 +1083,7 @@ just_shell:
 
       /* Check if script is executable.  Otherwise we start non-executable
 	 scripts successfully, which is incorrect behaviour. */
-      if (check_file_access (real_path, X_OK) < 0)
+      if (real_path.has_acls () && check_file_access (real_path, X_OK) < 0)
 	return -1;	/* errno is already set. */
 
       /* Replace argv[0] with the full path to the script if this is the