How do you get lr-mess to compile without breaking?

ramokromok

Trying to compile lr-mess from source on RetroPie 4.6 on a 2GB RPi 4 and after a few hours it just stops with errors.

If it helps I’m using the official power supply, and quitting emulation station before trying.

Last time it said:
/mess-libretro.so not found

I’ve tried about 9 times with no luck. Am I doing something wrong?

Thank you!!

mitu

You should post the error log entirely to see where it stops (use pastebin.com), the installation should be logged in $HOME/logs. My guess is that there's not enough memory for the compilation to complete, but we can check the log to make sure.

ramokromok

Thank you. I will do that if/when it fails again. 👍

ramokromok

Here's a Pastebin for a previous attempt.

https://pastebin.com/U1uTYkX5

Cheers

mitu

Yes, seems like out-of-memory errors are the ones stopping the compilation:

[...]
g++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
make[2]: *** [frontend.make:1272: ../../../../libretro/obj/libretro/src/frontend/mame/luaengine.o] Error 1
make[1]: *** [Makefile:88: frontend] Error 2
make[1]: *** Waiting for unfinished jobs....

ramokromok

Thank you. 👍

In case anyone finds this in the future, google “increase swap size raspberry pi” - that should do it 🙂

Eldrethor

@ramokromok Adding to this, with only 2 GB of memory, I had to increase the swap size to 4096 before the build would successfully compile.

mitu

The RetroPie setup script already allocates 4G (see here), but I think the recent changed in upstream MAME have increased the memory needed for a successful compilation.