Hi Catonano, On Mon, 2 Apr 2018 19:21:27 +0200 Catonano wrote: > Why is llvm needed ? Rust uses LLVM to generate the actual images. But it should be a native-input since mrustc doesn't use it, only Rust uses it. (But mrustc compiles parts of the Rust source code for use in minicargo) > I read on their git repo page that it's tested with the gcc 5.4 and 6 ? > https://github.com/thepowersgang/mrustc Hmm, good to know. Right now we use 5.5 since that's what the rest of Guix uses. Let's see whether it's enough. > so there's the gcc too ? 🤔 > but then it's not used ? Right, it's a leftover from when I tried to get rust-1.19.0 to use gcc to link its executables. I might need to adapt it to "symlink gcc cc" in a later version still.