Custom-Operating-System/docs/getting_gn.md

Getting GN

GN is a meta-build system that generates build files for Ninja.

Getting a binary

You can download the latest version of GN binary for Linux and macOS from Google's build infrastructure

MacOS	Linux
amd64 arm64	amd64 arm64

Alternatively, you can build GN from source with a C++17 compiler:

git clone https://gn.googlesource.com/gn
cd gn
python build/gen.py
ninja -C out
# To run tests:
out/gn_unittests

Note: On Linux and Mac, the default compiler is clang++, a recent version is expected to be found in PATH. This can be overridden by setting CC, CXX, and AR.

For more inforamtion, please visit: https://gn.googlesource.com/gn/