mknames: add typecast to avoid errors with C++
mknames: add typecast to avoid errors with C++

deniskropp/DirectFB,lancebaiyouview/DirectFB,jcdubois/DirectFB,lancebaiyouview/DirectFB,sklnet/DirectFB,lancebaiyouview/DirectFB,lancebaiyouview/DirectFB,jcdubois/DirectFB,sklnet/DirectFB,jcdubois/DirectFB,djbclark/directfb-core-DirectFB,sklnet/DirectFB,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,djbclark/directfb-core-DirectFB,sklnet/DirectFB,deniskropp/DirectFB