Fix warnings.
Fix warnings.

kevleyski/directfb,jcdubois/DirectFB,djbclark/directfb-core-DirectFB,sklnet/DirectFB,kaostao/directfb,mtsekm/test,Distrotech/DirectFB,lancebaiyouview/DirectFB,DirectFB/directfb,deniskropp/DirectFB,dfbdok/DirectFB1,DirectFB/directfb,sklnet/DirectFB,lancebaiyouview/DirectFB,lancebaiyouview/DirectFB,dfbdok/DirectFB1,djbclark/directfb-core-DirectFB,Distrotech/DirectFB,kevleyski/directfb,sklnet/DirectFB,dfbdok/DirectFB1,mtsekm/test,kaostao/directfb,kevleyski/DirectFB-1,deniskropp/DirectFB,kevleyski/DirectFB-1,kaostao/directfb,mtsekm/test,kevleyski/DirectFB-1,jcdubois/DirectFB,djbclark/directfb-core-DirectFB,djbclark/directfb-core-DirectFB,kevleyski/directfb,kevleyski/DirectFB-1,deniskropp/DirectFB,sklnet/DirectFB,DirectFB/directfb,deniskropp/DirectFB,jcdubois/DirectFB,kevleyski/directfb,Distrotech/DirectFB,lancebaiyouview/DirectFB