gcc-6 is required to compile "GBA emu - gpSP port for libretro"
On a Debian Buster image of OSMC, gcc-6 is not in the standard repositories but it can be found in oldstable (Stretch). Add the oldstable apt source before trying to install Retropie
sudo vi /etc/apt/sources.list
add the following two lines
deb http://ftp.debian.org/debian/ oldstable main contrib non-free
deb-src http://ftp.debian.org/debian/ oldstable main contrib non-free
gcc-6 is required to compile "GBA emu - gpSP port for libretro"
On a Debian Buster image of OSMC, gcc-6 is not in the standard repositories but it can be found in
oldstable(Stretch). Add theoldstableapt source before trying to install Retropieadd the following two lines
then update