CMake-It

Using CMake with the platform's default toolchain is as easy is as running cmake ., but changing the default toolchain or cross-compiling requires to pass toolchain specific options to cmake. There are two ways to accomplish this: create toolchain file

cmake -DCMAKE_TOOLCHAIN_FILE=crosscompile.cmake

or pass all options directly from the command line

cmake -S <path to CMakeLists.txt> \
    -DCMAKE_SYSTEM_NAME=Linux \
    -DCMAKE_SYSTEM_PROCESSOR=aarch64 \
    -DCMAKE_C_COMPILER=<path_to_gcc>/arm-linux-gnueabi-gcc \
    ...

Both variants are almost equivalent.

This project exposes build.sh script incorporates all the magic required to compile cmake-project with cl, gcc, clang for Intel and ARM CPUs.

How to use

Create build.local file (see example):

DIR_NDK=C:/android/ndk-r21d
DIR_GCC=C:/mingw
DIR_LLVM=C:/llvm/10.0.0
DIR_LLVM_ARM=$DIR_LLVM
...

Execute from CMakeLists.txt file directory:

# Build with selected toolchain
build.sh x64-cl
build.sh x64-gcc
build.sh x64-clang
build.sh arm64-ndk
build.sh arm64-gcc
...

# Run compiled executable
run.sh x64-cl       # run local (i.e. host machine)
run.sh arm64-ndk    # run using ADB
run.sh arm64-gcc    # run using SSH
run.sh arm64-clang
...

Prerequisites

cmake, vswhere, ninja