21dd114f82
This reverts commit d170c98d13a7b622c57c9b9f727a6bfec95a9181. niksnut argues that we need smaller system closures, not bigger. So users facing the trouble of getting gcc rebuilds after nix-collect-garbage for any minimal nixos configuration change should use other means of not losing the stdenv output. One way is to keep one somewhere: nix-build -A stdenv -o stdenv '<nixpkgs>'. Another may be to use nix.conf options like gc-keep-outputs, gc-keep-derivations or env-keep-derivations.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.