linglong/BUILD.md

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# Build instructions
linglong use [cmake presets], you can build and install linglong by running:
```bash
cmake --workflow --preset release
sudo cmake --install build-release
```
For developing or debugging linglong:
```bash
# Use ccache and ninja if available.
# You might want add this to the rc file of your shell.
export CMAKE_CXX_COMPILER_LAUNCHER=="$(command -v ccache 2>/dev/null)"
if command -v ninja &>/dev/null; then
export CMAKE_GENERATOR="Ninja"
fi
# configure, build and test
cmake --workflow --preset debug
# configure only
cmake --preset debug
# build only
cmake --build --preset debug
# test only
ctest --preset debug
```
[cmake presets]: https://cmake.org/cmake/help/latest/manual/cmake-presets.7.html
## Packaging
linglong use [CPM.cmake] to download dependencies not found locally.
For packager want to disable this feature:
```bash
export CPM_USE_LOCAL_PACKAGES=1
```
For further information, check README of [CPM.cmake].
[CPM.cmake]: https://github.com/cpm-cmake/CPM.cmake