[Nix-dev] Re: warning if trying to install a package but it fails an assert.

[Erick Tryzelaar]

On Wed, Dec 17, 2008 at 5:21 AM, Ludovic Courtès <ludo at gnu.org> wrote:
> I don't think we should worry about it.  Instead, we should make sure
> Nixpkgs packages have "sane" defaults.  In that case, `perlBindings'
> should default to `true', especially since Perl bindings probably don't
> consume much disk space, and Perl can reasonably be considered
> ubiquitous.

Another option would be to just ask the user what they would like to
do. If you've already got one version installed, nix could ask if you
want to rebuild and replace it with these options, rebuild along side
the old one with these options, or cancel.