* path.cc (readlink): Avoid calling strlen() twice.

winsup/cygwin/ChangeLog

@@ -1,3 +1,7 @@
+2012-03-08  Václav Zeman  <vhaisman@gmail.com>
+
+	* path.cc (readlink): Avoid calling strlen() twice.
+
 2012-03-07  Corinna Vinschen  <corinna@vinschen.de>
 
 	* Throughout, replace usage of w32api's min with MIN from sys/param.h.

winsup/cygwin/path.cc

@@ -2783,7 +2783,8 @@ readlink (const char *path, char *buf, size_t buflen)
       return -1;
     }
 
-  ssize_t len = MIN (buflen, strlen (pathbuf.get_win32 ()));
+  size_t pathbuf_len = strlen (pathbuf.get_win32 ());
+  ssize_t len = MIN (buflen, pathbuf_len);
   memcpy (buf, pathbuf.get_win32 (), len);
 
   /* errno set by symlink.check if error */