You can use the one just beside the amiberry build here: Show home:nephros:devel:games:amiga / libmpeg2 - SailfishOS Open Build Service
… which is precisely what I meant by my comment above. Most (all?) SDL programs have this or similar problems.
Also, they almost all expect proper input devices (buttons, keyboards) so are usually only usable with an external keyboard and maybe even mouse.
But hey, it’s a first step!