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Building static-linux-musl binary with clang: gcc_eh library not found #177129
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I bisected this to this commit: c6dd11c
@alyssais do you know what might be causing this? |
Oh, according to this mailing list entry, this behavior is kind of expected (although it is quite old -- is this still the case?):
Which part of the nix cc toolchain adds the flag for libgcc_eh then? Maybe it is just not needed? \edit: It seems that clang itself is adding these flags for the linker, so it expects I work-around that problem currently by creating an empty |
Trying to use the llvm clang toolchain, targeting static musl, failed with: ``` /nix/store/fnw7g7s8z6wmaank060jpqppl0hiqbal-x86_64-unknown-linux-musl-binutils-2.38/bin/x86_64-unknown-linux-musl-ld: cannot find -lgcc_eh: No such file or directory clang-11: error: linker command failed with exit code 1 (use -v to see invocation) ``` See NixOS/nixpkgs#177129
Trying to use the llvm clang toolchain, targeting static musl, failed with: ``` /nix/store/fnw7g7s8z6wmaank060jpqppl0hiqbal-x86_64-unknown-linux-musl-binutils-2.38/bin/x86_64-unknown-linux-musl-ld: cannot find -lgcc_eh: No such file or directory clang-11: error: linker command failed with exit code 1 (use -v to see invocation) ``` See NixOS/nixpkgs#177129
I'm also gettting a problem related to this when trying to cross compile
|
BTW, there is an upstream bug for LLVM here. |
I just hit this. The nixpkgs clang derivation already patches the source to switch from |
Describe the bug
After upgrading nixpkgs to 22.05 from 21.11, trying to build a simple hello world C program, using the
pkgsStatic.llvmPackages_11.stdenv
orpkgsStatic.llvmPackages.stdenv
orpkgsStatic.clangStdenv
results inSteps To Reproduce
Steps to reproduce the behavior:
nix build .
Expected behavior
I am able to build a static executable, based on musl, with clang.
Additional context
It seems like the gcc_eh.a library is indeed missing:
Removing the
-lgcc_eh
option from the linker flags and manually running the resulting command produces a valid executable. (but I suppose this only works since I am not using exceptions ?)Notify maintainers
Metadata
Please run
nix-shell -p nix-info --run "nix-info -m"
and paste the result.Note, I am using nix flake to configure my system:
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