--- a/config.h.mingw	Fri May 25 19:23:36 2007 +0000
+++ b/config.h.mingw	Fri May 25 20:06:37 2007 +0000
@@ -306,7 +306,7 @@
 /* #undef HAVE_TZNAME */
 
 /* Define to 1 if you have the <unistd.h> header file. */
-#define HAVE_UNISTD_H 1
+/*#define HAVE_UNISTD_H 1*/
 
 /* Define to 1 if you have the `vprintf' function. */
 #define HAVE_VPRINTF 1