--- extra/resolveip.c.orig	Sun Oct 28 21:43:03 2001
+++ extra/resolveip.c	Sun Oct 28 21:42:41 2001
@@ -31,7 +31,7 @@
 #include <my_sys.h>
 #include <getopt.h>
 
-#if !defined(_AIX) && !defined(HAVE_UNIXWARE7_THREADS) && !defined(HAVE_UNIXWARE7_POSIX) && !defined(h_errno)
+#if !defined(_AIX) && !defined(HAVE_UNIXWARE7_THREADS) && !defined(HAVE_UNIXWARE7_POSIX) && !defined(h_errno) && !defined(__CYGWIN__)
 extern int h_errno;
 #endif