Greetings, I'm Dune, coming from upstream. This should be fixed by https://github.com/teeworlds/teeworlds/commit/fdc14f07386272c47a95e060643620f537ab9d5e for bam and https://github.com/teeworlds/teeworlds/pull/2033 for cmake. Teeworlds will only use the SSE flag if necessary (old gcc compilers, gcc < 4.10). I hope that does it for you, Adrian.
Jordy.
