[fusion] Fix multi app core build.
[fusion] Fix multi app core build.

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