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Merge pull request #13402 from DavHau/build-cores

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build-cores: detect cores automatically if set to 0
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Sergei Zimmerman 2025-07-09 23:06:55 +03:00 • committed by GitHub
commit b19e9acc03
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8 changed files with 58 additions and 10 deletions
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src/nix-build/nix-build.cc
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@ -535,7 +535,7 @@ static void main_nix_build(int argc, char * * argv)
env["NIX_BUILD_TOP"] = env["TMPDIR"] = env["TEMPDIR"] = env["TMP"] = env["TEMP"] = tmpDir.path().string();
env["NIX_STORE"] = store->storeDir;
env["NIX_BUILD_CORES"] = std::to_string(settings.buildCores);
env["NIX_BUILD_CORES"] = fmt("%d", settings.buildCores ? settings.buildCores : settings.getDefaultCores());
auto parsedDrv = StructuredAttrs::tryParse(drv.env);
DerivationOptions drvOptions;