diff -r 474aa35daa95 -r 7717252e3ed9 examples/DS401_Slave_Gui/getopt.h
--- a/examples/DS401_Slave_Gui/getopt.h	Fri Dec 07 18:22:41 2007 +0100
+++ b/examples/DS401_Slave_Gui/getopt.h	Sat Dec 08 15:01:14 2007 +0100
@@ -147,7 +147,7 @@
    `getopt'.  */
 
 #if (defined __STDC__ && __STDC__) || defined __cplusplus
-# ifdef __GNU_LIBRARY__
+# if (defined __GNU_LIBRARY__ || __CYGWIN__ || __MINGW32__)
 /* Many other libraries have conflicting prototypes for getopt, with
    differences in the consts, in stdlib.h.  To avoid compilation
    errors, only prototype getopt for the GNU C library.  */