hi
I am working on my old gentoo 2010 stage4, and I'd like to add DirectFB to my overlay.
Is there any repository? I need sources, and patches.
Any news since 2015/2016?
let me know, this topic is awesome 
The OP in this thread had the patches included in the PKBUILD archive for Arch Linux ARM as attachments.
The PKBUILD also contains links to sources. I am sure you can make a .ebuild from that.
There are also older .ebuild for DirectFB still floating around in the internet despite that Gentoo has abandoned DirectFB.
Since DirectFB is no longer maintained for several years now I am not sure the directfb-fusion kernel module still compiles and works. Its not required, but would allow to run multiple DirectFB based application at the same time.
Sources can also be found here
https://github.com/deniskropp/linux-fusion for this module. Not sure this is the latest version though as it may have been forked.
You may need to test some older DirectFB versions for 2.6 kernels, but it should be very possible to get it to work in Gentoo.