| # Hacking on the GN binary itself | |
| ## Building GN itself | |
| GN is part of the Chromium tree. If you have a Chromium checkout, you | |
| already have the source and you can do `ninja -C out/Debug gn` to | |
| build it. | |
| To build gn using gn, run (in the root `src` directory): | |
| ``` | |
| gn gen out/Default | |
| ninja -C out/Default gn | |
| ``` | |
| Change `out/Default` as necessary to put the build directory where you | |
| want. | |
| ## Running GN's unit tests | |
| ``` | |
| ninja -C out/Default gn_unittests && out/Default/gn_unittests | |
| ``` |