Set $PREFIX only if it's unset. Take care of preset $CFLAGS. Use $PREFIX consequently.
Set $PREFIX only if it's unset.
Take care of preset $CFLAGS.
Use $PREFIX consequently.

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