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

[Luca Bruno]

Oh it was already there... I searched bad through nixpkgs. Thanks a lot!


On Thu, Apr 24, 2014 at 10:27 AM, Max Ivanov <ivanov.maxim at gmail.com> wrote:

> Definition of ccacheStdenv is   "ccacheStdenv = lowPrio (overrideGCC
> stdenv ccacheWrapper);", you cacn create your own, which will call
> clang if object isn't cached:   ccacheStdenvClang = lowPrio
> (overrideGCC clangStdenv ccacheWrapper);
>
> On Thu, Apr 24, 2014 at 9:00 AM, Luca Bruno <lethalman88 at gmail.com> wrote:
> > 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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> >> > nix-dev at lists.science.uu.nl
> >> > http://lists.science.uu.nl/mailman/listinfo/nix-dev
> >> >
> >> _______________________________________________
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> >
> >
> >
> >
> > --
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>



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