Please mark sdlmame-0.142.ebuild stable.
amd64 ok small note that does not block. The buildsystem adds itself -pipe -O3, so -O is not overwrited but if i haven't -O? in my cflags it was compiles also with -O. Can you drop them? Example from log: x86_64-pc-linux-gnu-g++ -DCRLF=2 -DINLINE="static inline" -DLSB_FIRST -DPTR64 -DMAME_DEBUG -DMAME_PROFILER -DDISTRO=generic "-DSDLMAME_ARCH=" -DSYNC_IMPLEMENTATION=tc -DSDLMAME_UNIX -DUSE_OPENGL=1 -DUSE_DISPATCH_GL=1 -DSDLMAME_X11 -DNATIVE_DRC=drcbe_x64 -pipe -O3 -fno-strict-aliasing -Wall -Wcast-align -Wundef -Wformat-security -Wwrite-strings -Wno-sign-compare -Wno-conversion -DINI_PATH=\"\$HOME/.sdlmame\;/etc/games/sdlmame\" -march=native -O2 -m64 `sdl-config --cflags
amd64 emerged, all sampled cl options work ok. effective in nested X
x86 stable
amd64 done. Thanks Ian and Agostino
too slow. pick up bug #380183 instead.