winetest: Use Win32 APIs exclusively for file I/O and output redirection.
diff --git a/programs/winetest/winetest.h b/programs/winetest/winetest.h
index 043e5ed..795bf03 100644
--- a/programs/winetest/winetest.h
+++ b/programs/winetest/winetest.h
@@ -39,6 +39,8 @@
 
 int send_file (const char *name);
 
+extern HANDLE logfile;
+
 /* GUI definitions */
 
 #include <windows.h>