I am working on a nasty machine that is slow and sporadically freezes, which makes it unable to compile anything that takes a bit of effort. I would like to try GCC's development version, but it's not possible to build it locally. Do you know of any (unofficial) respository that offers i686 packages of GCC 5?
By the way, would there be any problems with system libs if a development version was installed (in place of the stable one, which is 4.9.1)?
IIRC the version of libstdc++ is tied to the GCC version so you'll need that too. It is possible to install multiple versions of gcc side by side ( e.g. https://aur.archlinux.org/packages/gcc46/ ) But I would like to suggest two alternatives. * Have you tried using clang instead (available in "extra")? * You could also compile the binaries on a different machine (be careful to compile for the right architecture) and copy them to your i686 machine