@posti85
the workaround is to check you gcc version on your setup for example mine is 9.3
in CLi type
gcc --version

then in the scriptmodule as @mitu advised initially find the 2 entries pointing gcc-6 lines 20 and 32 (im having 4.7.2 rpie setup script) and in my case i added gcc-9 fo example
save, start or restart rpi setup and should compile ok
BUT again as @mitu
i d recommend lr-mgba which is better for gba

@vampireJ For a laptop, Ubuntu is recommended as I use that for development (So it's the most tested). 16.04 or better should be fine.

Note, when posting for advice in the future please read https://retropie.org.uk/forum/topic/3/read-this-first (as agreed when registering). Things like hardware platform are important and in this case it would have saved me time.