[x11] Build fix.
[x11] Build fix.

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