The OpenSSH binaries built by the expression by default expect system-wide
configuration files in "/etc/ssh", which is a bit of an impurity (and certainly
inconsistent with the way other package handle --sysconfdir in Nix). Those who
prefer a clean installation, can now configure that directory path.
Adding the line "openssh = { etcDir = null; };" to $NIXPKGS_CONFIG configures
OpenSSH to use the default location, i.e. $out/etc. Setting that attribute to a
string will configure OpenSSH to use that concrete path instead.
svn path=/nixpkgs/trunk/; revision=17570
9a833f026b