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llvm: support cross compilation with useLLVM flag

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You can build (partially) with LLVM toolchain using the useLLVM flag.
This works like so:

  nix-build -A hello --arg crossSystem '{ system =
    "aarch64-unknown-linux-musl"; useLLVM = true }'

also don’t separate debug info in lldClang

It doesn’t work currently with that setup hook. Missing build-id?
This commit is contained in:
Matthew Bauer
2019-02-26 19:45:35 -05:00
parent 77d7d60d8c
commit b86e62d30d
9 changed files with 710 additions and 14 deletions
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pkgs/stdenv/generic/make-derivation.nix
+1 -1
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@@ -86,7 +86,7 @@ rec {
doCheck' = doCheck && stdenv.hostPlatform == stdenv.buildPlatform;
doInstallCheck' = doInstallCheck && stdenv.hostPlatform == stdenv.buildPlatform;
separateDebugInfo' = separateDebugInfo && stdenv.hostPlatform.isLinux;
separateDebugInfo' = separateDebugInfo && stdenv.hostPlatform.isLinux && !(stdenv.hostPlatform.useLLVM or false);
outputs' = outputs ++ lib.optional separateDebugInfo' "debug";
fixedOutputDrv = attrs ? outputHash;