[Nix-dev] Nix - building only some libraries with profiling

[John Wiegley]

>>>>> Carlo Nucera <meditans at gmail.com> writes:

> Hi, I'd like to fine tune my haskell setup with Nix.
> I need to transitively compile a package I'm working on with profiling. For the
> time being, I'm compiling all my haskell libraries with libraries enabled, with
> the lines:

>   overrides = self: super: {
>     mkDerivation = drv: super.mkDerivation (drv //
> {enableLibraryProfiling = true;});

> as you can see in this gist:
> https://gist.github.com/meditans/82ded9101c55eb5884d7

> Obviously, this way of doing things is suboptimal, so how can I modify this
> file to transitively build with profiling only a few libraries?

You should be able to enable profiling in the default.nix for your project,
and it will build only the dependencies necessary to honor that.

John