
For now, leave the old implementation under `man-old` attribute. Small warning: I had a leftover ~/.nix-profile/man from an old package, which caused man-db's man prefer it and ignore ~/.nix-profile/share/man. The PATH->MANPATH code just selects the first match for each PATH item.
*** 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.