Fix FTBFS when build -DWITH_XRANDR=OFF

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>

tdm/kfrontend/kgapp.cpp

@@ -47,6 +47,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #endif
 
 #include <tqtimer.h>
+#include <tqfile.h>
 #include <tqstring.h>
 #include <tqcursor.h>
 #include <tqpalette.h>