zig--cross

Wrapper to make it easy to use Zig as a cross compiler with CMake.

Building

cmake -B build
cmake --build build

Modify cmake.toml to change the build settings. For more information: https://cmkr.build.

Installation

You can rename the zig--cross executable to zig--<command> and put it in your PATH:

zig--ar.exe
zig--dlltool.exe
zig--lib.exe
zig--ranlib.exe

zig--c++.exe
zig--cc.exe

Note: You also need zig in your PATH for this to work.

Example (aarch64-linux-gnu)

First create cmake/zig-aarch64-toolchain.cmake in your project folder with the following contents:

if(CMAKE_GENERATOR MATCHES "Visual Studio")
    message(FATAL_ERROR "Visual Studio generator not supported, use: cmake -G Ninja")
endif()
set(CMAKE_SYSTEM_NAME "Linux")
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_SYSTEM_PROCESSOR "aarch64")
set(CMAKE_C_COMPILER "zig" cc -target aarch64-linux-gnu)
set(CMAKE_CXX_COMPILER "zig" c++ -target aarch64-linux-gnu)
set(CMAKE_AR "zig--ar")
set(CMAKE_RANLIB "zig--ranlib")

Then configure and build your project:

cmake -B build-aarch64 -G Ninja -DCMAKE_TOOLCHAIN_FILE=cmake/zig-aarch64-toolchain.cmake
cmake --build build-aarch64