[Nix-dev] gcc has stopped working on Mac OS X Mavericks

[Alfredo Di Napoli]

Ahh, mystery solved, thanks Michael.
Apparently I was looking inside the wrong file!
For newbies like me, it can be found inside
$HOME/.nix-defexpr/channels/nixpkgs/pkgs/stdenv/nix/default.nix

Simply changing the content of the "extraHook" (replacing that 'export
SDKROOT') with what Michael suggested did the trick.

Thank you guys!
On the silver lining, nix-1.7 works out of the box on Yosemite :)

Alfredo

On 27 October 2014 08:44, Michael Sperber <sperber at deinprogramm.de> wrote:

>
> Alfredo Di Napoli <alfredo.dinapoli at gmail.com> writes:
>
> > Hello nixers,
> >
> > I think I'm having a very similar problem here which I do not have enough
> > nix knowledge to debug. I have reinstalled nix-1.7 doing this (as
> suggested
> > from the nix website):
> >
> >  curl https://nixos.org/nix/install | sh
> >
> >
> > So far so good. But when I try to install ANYTHING, (e.g. "hello"), this
> is
> > what I get:
> >
> > installing `hello-2.9'
> > these derivations will be built:
> >   /nix/store/al6xyibqncn9aicmkffr0n90xgxnfrm4-hello-2.9.drv
> > building path(s) `/nix/store/71gijbvnnish0gvrci13qpsqxhqwnqvq-hello-2.9'
> > building /nix/store/71gijbvnnish0gvrci13qpsqxhqwnqvq-hello-2.9
> > unpacking sources
> > unpacking source archive
> > /nix/store/xdilnlzvvsf7r33gs4vy9jq2bmazlc0j-hello-2.9.tar.gz
> > source root is hello-2.9
> > patching sources
> > configuring
> > configure flags: --disable-dependency-tracking
> > --prefix=/nix/store/71gijbvnnish0gvrci13qpsqxhqwnqvq-hello-2.9
> > checking for a BSD-compatible install...
> > /nix/store/rc94la2h0pwkshbgmd7kz5nhklkdqyr2-coreutils-8.21/bin/install -c
> > checking whether build environment is sane... yes
> > checking for a thread-safe mkdir -p...
> > /nix/store/rc94la2h0pwkshbgmd7kz5nhklkdqyr2-coreutils-8.21/bin/mkdir -p
> > checking for gawk... gawk
> > checking whether make sets $(MAKE)... yes
> > checking whether make supports nested variables... yes
> > checking for gcc... gcc
> > checking whether the C compiler works... no
> > configure: error: in
> >
> `/private/var/folders/js/cv_q5mqd6_g76353vq_n4nqc0000gn/T/nix-build-hello-2.9.drv-0/hello-2.9':
> > configure: error: C compiler cannot create executables
> > See `config.log' for more details
> > builder for `/nix/store/al6xyibqncn9aicmkffr0n90xgxnfrm4-hello-2.9.drv'
> > failed with exit code 77
> > error: build of
> `/nix/store/al6xyibqncn9aicmkffr0n90xgxnfrm4-hello-2.9.drv'
> > failed
> >
> > -- Which makes me suspect the error is very similar. Likewise, my xcrun
> > thinks I'm on 10.10.
>
> Yep, that's it.  Do what John Wiegley says, change the SDKROOT line in
> pkgs/stdenv/nix/default.nix to have this
>
> export
> SDKROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk
>
> ... instead of the call to xcrun, then try again.
>
> --
> Regards,
> Mike
>
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