File tiff-windows.patch of Package mingw64-tkimg

--- Img-2.1.0/tiff/tiff.c	2025-03-22 01:14:57.000000000 +0100
+++ Img-2.1.0-new/tiff/tiff.c	2025-09-25 10:11:29.973553186 +0200
@@ -19,7 +19,7 @@
 
 #ifdef _WIN32
 #   define HAVE_BOOLEAN
-#   include <Windows.h>
+#   include <windows.h>
 #endif
 #include "tkimg.h"
 #include "tifftcl.h"