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j: fix build on darwin #97525

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merged 1 commit into from Sep 9, 2020
Merged

j: fix build on darwin #97525

merged 1 commit into from Sep 9, 2020

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Luflosi
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@Luflosi Luflosi commented Sep 9, 2020

Motivation for this change

On darwin the compilation would fail with the following warning:

clang-7: error: argument unused during compilation: '-fno-strict-overflow' [-Werror,-Wunused-command-line-argument]

This error happens because the -fno-strict-overflow is passed to the compiler. To fix this, disable the strictoverflow hardening feature. Also see #39687.

ZHF: #97479

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • 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 nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

@Luflosi
j: fix build on darwin
e29932e 
On darwin the compilation would fail with the following warning:
```
clang-7: error: argument unused during compilation: '-fno-strict-overflow' [-Werror,-Wunused-command-line-argument]
```
This error happens because the `-fno-strict-overflow` is passed to the compiler. To fix this, disable the `strictoverflow` hardening feature. Also see NixOS#39687.

ZHF: NixOS#97479
@Luflosi
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Luflosi commented Sep 9, 2020

I changed the condition from stdenv.isDarwin to stdenv.cc.isClang because this does not depend on the platform but on the compiler (clang).

@ofborg ofborg bot added the 6.topic: darwin Running or building packages on Darwin label Sep 9, 2020
Synthetica9
Synthetica9 approved these changes Sep 9, 2020
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Built this on NixOS with clangStdenv. It did indeed fail before, and this commit fixes that. LGTM.

jonringer
jonringer approved these changes Sep 9, 2020
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LGTM

Result of nixpkgs-review pr 97525 1

1 package built:
  • j

@jonringer jonringer merged commit fbefec0 into NixOS:master Sep 9, 2020
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Doesn't this still need a backport to 20.09?

@Luflosi Luflosi mentioned this pull request Sep 11, 2020
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@Luflosi Luflosi deleted the fix-j branch September 11, 2020 09:47
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Luflosi commented Sep 11, 2020

Yes, indeed, I just made a PR.

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@Synthetica9 Synthetica9 Synthetica9 approved these changes

@jonringer jonringer jonringer approved these changes

@7c6f434c 7c6f434c Awaiting requested review from 7c6f434c

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6.topic: darwin Running or building packages on Darwin 10.rebuild-darwin: 1-10 10.rebuild-darwin: 1 10.rebuild-linux: 1-10 10.rebuild-linux: 1
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