[Nix-dev] How do I ...

[Pjotr Prins]

How do I set an argument from the command line? I am using:

  nix-env (Nix) 0.12pre12474

I wish to build git with svn support, because

  nix-env -f . -i git

  git-svn 

renders

  git-svn not supported, reinstall with config git = { svnSupport = true } set

Nice message. Now I try:

  nix-env -f . -i git --arg svnSupport true

and I get the same message when running git-svn (in fact I can see
there is no build invoked).

help.

Pj.