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macOS cross compiler toolchains, supports both Apple Silicon & Intel Macs.

Download precompiled toolchains from GitHub Release

Or install using Homebrew:

brew tap messense/macos-cross-toolchains
# install x86_64-unknown-linux-gnu toolchain
brew install x86_64-unknown-linux-gnu
# install aarch64-unknown-linux-gnu toolchain
brew install aarch64-unknown-linux-gnu

Suppose you have installed x86_64-unknown-linux-gnu toolchain and have it on PATH, setup the environment variables as below to use it with Cargo.

export CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=x86_64-linux-gnu-gcc

Usually only CARGO_TARGET_*_LINKER is required, in case it somehow fails to compile, you can also set some extra environment variables:

export CC_x86_64_unknown_linux_gnu=x86_64-linux-gnu-gcc
export CXX_x86_64_unknown_linux_gnu=x86_64-linux-gnu-g++
export AR_x86_64_unknown_linux_gnu=x86_64-linux-gnu-ar