[Nix-dev] About using clang+llvm as default 'stdenv' compiler

[Luca Bruno]

In this way it's possible to use ccache? I don't care much about security
or isolation, rather I'm more concerned about saving build time of webkit &
co.


On Thu, Apr 24, 2014 at 7:20 AM, Max Ivanov <ivanov.maxim at gmail.com> wrote:

> 1. Use pkgs.clangStdenv instead of pkgs.stdenv
> 2. You'll have different hashes in /nix/store and it is up to you
> which one to link to your profile. You can create 2 profiles one for
> each firefox flavor.
>
>
> On Thu, Apr 24, 2014 at 12:17 AM, Anderson Torres
> <torres.anderson.85 at gmail.com> wrote:
> > Hello, Nixers!
> >
> > I was thinking about a thing here.
> >
> > 1 - How can I set a new C compiler for stdenv? I want to use llvm+clang
> as
> > default compiler toolchain when running nix-build, etc. (Yes, I like some
> > masochistic testing...)
> >
> > 2 - Using a different compiler certainly affect the object code produced
> -
> > and in NIX it is propagated through the /nix/store tree as a different
> hash.
> > But, technically, both compilers would produce 'equivalent' object codes.
> >
> > The default toolchain is gcc, but my local chain is clang+llvm. So, can I
> > use at the same time a, say, Firefox compiled by Hydra and updated on the
> > unstable channels, and a local, 'clang7ed' version of Firefox?
> >
> >
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> >
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