Made configure warnings more visible. Added extra warnings if PNG, JPEG or FreeType2 support is missing.
Made configure warnings more visible. Added extra warnings if PNG, JPEG
or FreeType2 support is missing.

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