Index: image-tiff.c
===================================================================
--- image-tiff.c	(revision 12020)
+++ image-tiff.c	(working copy)
@@ -28,9 +28,10 @@
 #ifdef HAVE_LIBTIFF
 #  include <tiff.h>	/* TIFF image definitions */
 #  include <tiffio.h>
+#ifndef WIN32
 #  include <unistd.h>
+#endif
 
-
 /*
  * '_cupsImageReadTIFF()' - Read a TIFF image file.
  */