b12f/nixpkgs
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Merge pull request #37600 from abbradar/impureusenative

Browse source 
impureUseNativeOptimizations: add stdenv adapter
This commit is contained in:
Yegor Timoshenko 2018-10-13 14:09:55 +00:00 committed by GitHub
parent b6a79aa63b 15bfee85f3
commit cd0c8739d7
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
pkgs/stdenv/adapters.nix
View file

@ -171,4 +171,19 @@ rec {
NIX_CFLAGS_LINK = toString (args.NIX_CFLAGS_LINK or "") + " -fuse-ld=gold";
});
};
/* Modify a stdenv so that it builds binaries optimized specifically
for the machine they are built on.
WARNING: this breaks purity! */
impureUseNativeOptimizations = stdenv: stdenv //
{ mkDerivation = args: stdenv.mkDerivation (args // {
NIX_CFLAGS_COMPILE = toString (args.NIX_CFLAGS_COMPILE or "") + " -march=native";
NIX_ENFORCE_NO_NATIVE = false;
preferLocalBuild = true;
allowSubstitutes = false;
});
};
}