On Thu, Mar 10, 2016 at 12:22:20AM +0100, Jean Louis wrote: > And I could not save the file in my home directory, and do: > guix package -i mutt -f mail.scm
As mentioned on IRC, modify the file mail.scm by adding a line mutt at the end. Then guix package -f mail.scm does "install the package that the code within FILE evaluates to" as explained by "guix package --help". mail.scm itself does not evaluate to anything, it just contains a number of variable definitions. By adding the line, it "returns" the value of the variable mutt, which is your package definition. Better yet, use GUIX_PACKAGE_PATH, for instance as follows: export GUIX_PACKAGE_PATH=$HOME/guix Then create the same file layout in that directory as in the source code: mkdir -p $HOME/guix/gnu/packages Copy mail.scm there, modify mutt, then guix package -i mutt will first look for your modified package. As this is not a bug, it would have been better to post to help-g...@gnu.org; let us continue the discussion there (if you are not yet subscribed, please do so), and I am closing this bug. Andreas
