| ## Allow custom install scripts to run with `--dry-run` option | |
| An new `dry_run` keyword is added to `meson.add_install_script()` | |
| to allow a custom install script to run when meson is invoked | |
| with `meson install --dry-run`. | |
| In dry run mode, the `MESON_INSTALL_DRY_RUN` environment variable | |
| is set. |