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stdenv cross adapter: Misc changes #29646

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merged 3 commits into from Sep 21, 2017

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@Ericson2314 Ericson2314 commented Sep 21, 2017

Motivation for this change
  1. Update gnu-config on non-Linux Aarch64 too
  2. Throw out invalidated extra run-time deps.
  3. Add optional overrides parameter
Things done

Only cross compiled, non-Linux, Aarch64 packages have changed hashes---that's nothing that works today. All Nix expression interfaces are preserved, too.

  • Tested using sandboxing (nix.useSandbox on NixOS, or option build-use-sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • Linux
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Fits CONTRIBUTING.md.

This is needed when cross-compiling for iOS (Aarch64 + Darwin). I also
changed the syntax of the Linux stdenv for visual consistency, though
that has no effect on semantics as the os is already guaranteed to be
Linux.
By default, all previous overrides are discarded as before, as they
would only apply to the old host platform. But sometimes it is useful to
add some new ones, and this optional parameter allows that.
They, unlike their native counterparts, run on the wrong platform and
are therefore invalid.
@Ericson2314 Ericson2314 added the 6.topic: cross-compilation Building packages on a different sort platform than than they will be run on label Sep 21, 2017
@Ericson2314 Ericson2314 merged commit fe2e7de into NixOS:master Sep 21, 2017
@Ericson2314 Ericson2314 deleted the stdenv-cross-adapter branch September 21, 2017 19:47
@Ericson2314 Ericson2314 restored the stdenv-cross-adapter branch September 21, 2017 19:48
@Ericson2314 Ericson2314 deleted the stdenv-cross-adapter branch September 21, 2017 19:48
@Ericson2314 Ericson2314 added this to Needed for binutils-wrapper in Cross compilation Sep 21, 2017
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6.topic: cross-compilation Building packages on a different sort platform than than they will be run on
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