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OS X builds failing with "C compiler cannot create executables"
From: |
Glenn Morris |
Subject: |
OS X builds failing with "C compiler cannot create executables" |
Date: |
Fri, 22 Jan 2016 18:45:04 -0500 |
User-agent: |
Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) |
Hi,
I see some OS X builds have been failing for some weeks in the configure
step with
configure: error: C compiler cannot create executables
See `config.log' for more details
Eg this fails: http://hydra.nixos.org/build/30904978
But eg this one works: http://hydra.nixos.org/build/30853497
Examining config.log:
configure:5019: checking for gcc
configure:5046: result: clang
[...]
configure:5315: checking whether the C compiler works
configure:5337: clang -O1 conftest.c >&5
xcode-select: error: no developer tools were found at
'/Applications/Xcode.app', and no install could be requested (perhaps
no UI is present), please install manually from 'developer.apple.com'.
That seems like a general problem that should be fixed?
Independent of that, is there a way to specify gcc in a release.nix file?
Thanks.
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