Whatever game one runs it will exit with "mednafen: tests.cpp:410: void MDFN_TESTS_CPP::TestSignedOverflow(): Assertion `Mul_U16U16U32U64(65535, 65535) == 0xfffe0001ULL' failed", as in the attached example, because of the cflags patch; removing it solves the issue. Reproducible: Always
Created attachment 396386 [details] example.log
Created attachment 396388 [details] emerge --info
please attach the full build log
oh, nvm, I see it's a runtime failure. Added some required flags to the ebuild.