[Nix-dev] perl on Darwin (was: Merging stdenv-updates soon?)

[Peter Simons]

James Cook wrote:

 > In BSD sed, use -i .bak MANIFEST, and then the original file will be
 > saved as MANIFEST.bak. With GNU sed the backup file is optional.

I tried to fix the perl build accordingly, but the syntax "-i.bak"
didn't work either:

  http://hydra.nixos.org/build/5829944/nixlog/1/raw

Could someone who actually has access to Darwin please figure this out
and commit a fix? I don't want to commit any more blind guesses that
cause a rebuild of stdenv every time. :-(

Take care,
Peter