Fixed static gif provider linking if specified as lowercase.
Fixed static gif provider linking if specified as lowercase.

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