When building with -DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON the compiler-rt
CMake configuration attempts to use CMAKE_*_COMPILER_TARGET variables,
which are usually only defined in cross-compilation mode.
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?
Matthew Bauer
Will Dietz
Pierre Bourdon
Tobias Mayer