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https://github.com/clasp-developers/clasp

clasp Common Lisp environment
https://github.com/clasp-developers/clasp

common-lisp compiler lisp

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clasp Common Lisp environment

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README 

        
# Clasp — Bringing Common Lisp and C++ Together



Clasp is a new [Common Lisp][] implementation that seamlessly interoperates with 

C++ libraries and programs using [LLVM][] for compilation to native code. This 

allows Clasp to take advantage of a vast array of preexisting libraries and 

programs, such as out of the scientific computing ecosystem. Embedding them in a 

Common Lisp environment allows you to make use of rapid prototyping, incremental 

development, and other capabilities that make it a powerful language.



For more information on using Clasp, see:



* [Clasp Manual][]

* [clbind Documentation][]



## Releases



See [Releases][] for current releases of Clasp.  For more information please

see the [Release Notes][].



### Building Clasp



At the moment, Clasp is supported on Linux, Mac OS X and FreeBSD. On these 

systems, you should be able to build it from source and you may be able to

install using a package manager. See the [Wiki][] for more information.



In case things go wrong, the quickest way to get help is to either 

[file an issue](#reporting-problems), or to [chat with us directly](#irc).



Building takes a lot of resources.  In parallel mode

(`:parallel-build t` in config.sexp) you need more than 8 GB of RAM 

and it will be 1-2 hours build time. If you have 8 GB of RAM you can turn off 

the parallel build which will then run for a day or so.  Make sure to have some 

paging space ("swapfile") configured.



There is also docker image [here](https://github.com/clasp-developers/clasp/pkgs/container/clasp).



### Common Lisp Ecosystem Support



Clasp supports the following major components:



* [SLIME](https://common-lisp.net/project/slime/)

* [ASDF](https://common-lisp.net/project/asdf/)

* [Quicklisp](https://www.quicklisp.org/beta/)

* [CFFI](https://common-lisp.net/project/cffi/)

* [Bordeaux-Threads](https://github.com/clasp-developers/clasp/issues/163)

* [Unicode](https://github.com/clasp-developers/clasp/issues/164)



Post on the issues or [contact us](#irc) if you're interested in changing that.



## Contributing to Clasp



We very much welcome any kind of contribution to Clasp, even if it is just bug 

finding and testing. A lot can be done all around the project, if you want to 

dive into something large. See the [Contributing][] file for the few guidelines 

we've set up around contributions.



## Reporting Problems



Generally you can report problems in two fashions, either by opening a 

[New Issue][] or by [chatting with us directly](#irc). In both cases, though, 

you should have the following pieces handy in order for us to be able to help 

you out as quickly and painlessly as possible:



* Your operating system name and version.

* The branch that you're using of Clasp.

* A paste of the build log or failure point that you reached.

* Patience.



## IRC



Clasp has an IRC channel on [Libera][] called [#clasp][]. If you have questions, 

problems, suggestions, or generally would like to just hang out with us devs, 

come and stop by!



## More on Clasp



For more information on Clasp and the discussion around it, see the following 

sites:



* [Christian Schafmeister's blog](https://drmeister.wordpress.com)

* [Hackernews](https://hn.algolia.com/?query=clasp&sort=byPopularity&prefix&page=0&dateRange=all&type=story)

* [Reddit](https://www.reddit.com/r/lisp/search?q=clasp&restrict_sr=on)

* [Google Tech Talks](https://www.youtube.com/watch?v=8X69_42Mj-g)

* [ELS2016](https://www.youtube.com/watch?v=5bQhGS8V6dQ)

* [Lessons Learned Implementing Common Lisp with LLVM](https://www.youtube.com/watch?v=mbdXeRBbgDM)



## Acknowledgments



Clasp was supported by:



* The Defense Threat Reduction Agency (DOD-DTRA) (HDTRA1-09-1-0009) 

* The National Institutes of Health (NIH/NIGMS Grant number: 2R01GM067866-07A2) 

* The National Science Foundation (Grant number: 1300231)



[Wiki]: https://github.com/clasp-developers/clasp/wiki/

[Cando Docker]: https://hub.docker.com/r/thirdlaw/cando

[#clasp]: irc://irc.libera.chat/#clasp

[Clasp Manual]: https://clasp-developers.github.io/manual.html

[clbind Documentation]: https://clasp-developers.github.io/clbind-doc.html

[Common Lisp]: https://common-lisp.net/

[Contributing]: https://github.com/clasp-developers/clasp/blob/main/CONTRIBUTING.md

[Libera]: https://libera.chat

[LLVM]: http://llvm.org/

[New Issue]: https://github.com/clasp-developers/clasp/issues/new

[Release Notes]: https://github.com/clasp-developers/clasp/blob/main/RELEASE_NOTES.md

[Releases]: https://github.com/clasp-developers/clasp/releases