So, the random select seems to be working, and displaying the subfolders from what I can see. Great!

However, now when I select Shutdown System, it goes to a black screen with a blinking _ underscore instead of shutting off.

Edit: the same thing happens when I F4 out to he command line. The command line never appears, only the blinking underscore and black screen.

Compilation apparently fails with a segfault:

https://github.com/gerstrong/Commander-Genius/issues/258

Reported again here today:

https://www.reddit.com/r/RetroPie/comments/56c9yl/commander_genius/

Reproducing on RetroPie 4.0.2, the problem is a GCC segfault:

[ 93%] Building CXX object src/fileio/CMakeFiles/fileio.dir/CPatcherUtils.cpp.o In file included from /home/pi/RetroPie-Setup/tmp/build/cgenius/src/engine/keen/galaxy/common/ai/platform/CVarPlatform.cpp:8:0: /home/pi/RetroPie-Setup/tmp/build/cgenius/src/engine/keen/galaxy/common/ai/platform/CVarPlatform.h: In member function ‘virtual void galaxy::CVarPlatform::_ZTv0_n112_N6galaxy12CVarPlatform9serializeER19CSaveGameController(CSaveGameController&)’: /home/pi/RetroPie-Setup/tmp/build/cgenius/src/engine/keen/galaxy/common/ai/platform/CVarPlatform.h:37:10: internal compiler error: Segmentation fault void serialize(CSaveGameController &savedGame) ^ Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.

We're a few versions behind on cgenius, but the same occurs with the latest stable (v183):

[ 97%] Building CXX object src/engine/keen/galaxy/CMakeFiles/engine_keen_galaxy.dir/common/ai/platform/CPlatformSit.cpp.o In file included from /home/pi/RetroPie-Setup/tmp/build/cgenius/src/engine/keen/galaxy/common/ai/platform/CVarPlatform.cpp:8:0: /home/pi/RetroPie-Setup/tmp/build/cgenius/src/engine/keen/galaxy/common/ai/platform/CVarPlatform.h: In member function ‘virtual void galaxy::CVarPlatform::_ZTv0_n112_N6galaxy12CVarPlatform9serializeER19CSaveGameController(CSaveGameController&)’: /home/pi/RetroPie-Setup/tmp/build/cgenius/src/engine/keen/galaxy/common/ai/platform/CVarPlatform.h:37:10: internal compiler error: Segmentation fault void serialize(CSaveGameController &savedGame) ^ Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.

Someone else got it to compile by changing build flags, but the result was not good:

https://github.com/gerstrong/Commander-Genius/issues/254#issuecomment-241711960

Seems this is a limitation of Jessie's older GCC and an update limitation is imposed by older glibc:

https://github.com/raspberrypi/tools/issues/61

We could resolve this by cross-compiling with a newer GCC somewhere else and providing binaries which cannot be rebuilt directly on the Pi.

According to OP, upstream v17x compiled okay, we could try downgrade RetroPie's port and forever stay on the old version.

@BuZz any thoughts?