Hello everyone,

I want to compile a project from source and it seems that I need to install an older version of GCC to do so (GCC 14, as it seems). I am puzzled before the difficulty I encounter : I passed 2 days compiling the AUR packages gcc12, gcc13, and gcc14, with or without clean chroot, and with and  without yay, without success (I obtain errors that I don't manage to put clear since this building is very verbose).

My question is : Why is there only gcc15 and gcc16 in Core and Extra ? In my opinion, it would be convenient to install older versions from those sources, especially when the AUR versions mentioned in the wiki have to be compiled from source, which may conduct to the difficulties I mentioned (and they seem common, as can be read in the comments under the AUR pages of the versions 12, 13 and 14).

As a second question : does somebody can advice me in order to install older versions of gcc in ArchLinux without having to compile it ? I considered using apt but did not find official Arch documentation and it seems to be a bad idea. I tried to install a deb file with dpkg but it has dependencies, and again it seems to be a bad idea. Unofficial user repositories seems to be a possibility, but I don't know where to start nor if it is secure.

Thank you very much for your attention and your help !