Hello, Guile is now continuously built straight from Git on the Hydra build farm: http://hydra.nixos.org/jobset/gnu/guile-master/all http://hydra.nixos.org/jobset/gnu/guile-1-8/all For each Git commit, it builds a tarball (“make && make dist”), builds and runs the test suite from that tarball, and finally does the same with coverage analysis of the C code. Currently builds only target GNU/Linux and Darwin. The build farm also has {Free,Open}BSD and Cygwin boxes but Nixpkgs[*] is not fully ported there so we don’t build on these yet. Thanks to Rob Vermaas and Eelco Dolstra of NixOS for starting work on this and for supporting the idea! Ludo’. [*] Nixpkgs is the set of packages used by Nix, which is the package manager used by Hydra. More info at http://nixos.org/.