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https://github.com/annacrombie/muon

An implementation of the meson build system in c99
https://github.com/annacrombie/muon

build-system c99 meson

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An implementation of the meson build system in c99

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README

        

muon logo

# [muon]

muon is an implementation of the meson build system in c99 with minimal
dependencies.

## Features

- `muon analyze` - a static analyzer for meson.build files. [demo]
- `muon fmt` - a meson.build code formatter
- An interactive stepping debugger with the `dbg()` function.
- A built-in cross platform [ninja implementation]
- [fast]

## Status

`muon` is close to feature-complete with the core of meson for `c` and `c++`.

See the [status page] for more detailed information.

Things missing include:

- cross-compilation support
- build optimizations like pch and unity
- some `b_` options
- dependencies with a custom configuration tool
- many modules

Other differences from meson are described in `doc/differences.md`

If you want to contribute, try using `muon` to build your favorite project.
Patches and bug reports welcome!

Additionally, muon is not fully supported on all platforms yet. The current
status may be viewed on muon's [ci dashboard]. Platforms with some or all tests
disabled are currently WIP and platforms not tested in CI have unknown status.
In general, posix systems should work fine.

## Dependencies

Essential:

- A c99 compatible toolchain

For `pkgconf` support:

- `libpkgconf`
- `pkgconf` or `pkg-config`

For `[wrap-file]` support:

- `libcurl`
- `libarchive`

To build documentation:

- `scdoc` for muon.1 and meson.build.5
- `python3` and `py3-yaml` for meson-reference.3

To run most project tests:

- `python3`

## Install

If you already have meson or muon and are not interested in bootstrapping, you
can just do a typical meson configure, build, install:

```
$meson setup build
cd build
ninja build
$meson test
$meson install
```

Otherwise, you must bootstrap muon.

The bootstrapping process has two stages. The first stage produces a `muon`
binary capable of building itself (but not necessarily anything else). The
second stage produces the final binary.

Stage 1:

```
./bootstrap.sh build
```

This will by default build a ninja implementation (samu) into the resulting
executable. To disable this behavior use `CFLAGS=-DBOOTSTRAP_NO_SAMU`.

Stage 2:

```
build/muon setup build
build/muon -C build samu
build/muon -C build test
build/muon -C build install
```

## Contribute

Please refer to the [contributing guide] before sending patches. Send patches
on the [mailing list], report issues on the [issue tracker], and discuss in
[#muon on libera.chat].

## License

`muon` is licensed under the GPL version 3 (see LICENSE). Tests under
`tests/project` were copied from the [meson project tests] and are licensed
under [Apache 2.0].

## Credits

Although I had already had the idea to re-implement meson in C, I was initially
inspired to actually go out and do it when I saw [boson]. `muon`'s code was
originally based on `boson`, though has since been almost completely rewritten.

[muon]: https://muon.build
[contributing guide]: https://git.sr.ht/~lattis/muon/tree/master/item/doc/contributing.md
[mailing list]: https://lists.sr.ht/~lattis/muon/
[issue tracker]: https://todo.sr.ht/~lattis/muon/
[#muon on libera.chat]: ircs://irc.libera.chat/#muon
[meson project tests]: https://github.com/mesonbuild/meson/tree/master/test%20cases
[Apache 2.0]: https://www.apache.org/licenses/LICENSE-2.0.txt
[boson]: https://sr.ht/~bl4ckb0ne/boson/
[status page]: https://muon.build/releases/edge/docs/status.html
[Fast]: https://github.com/annacrombie/meson-raytracer#performance
[demo]: https://play.muon.build
[ninja implementation]: https://git.sr.ht/~lattis/muon/tree/master/item/src/external/samurai/README.md
[ci dashboard]: https://muon.build/muon_ci.html