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Matthew Flatt e2435d7187 expander: different repair for race 
The repair in 49a90ba75e reorders two lines in a way that, in
retrospect, seems worrying. I can't construct an example that goes
wrong, so maybe it's fine, but it seems possible (now or with some
future change) that attempting to visit available modules could lead
to the same attempt in the same thread and therefore a loop.

This commit changes the repair to just always take the lock instead of
fixing up the attempted shortcut. There's a tiny extra cost to always
taking the lock, but that extra cost seems like a better choice
overall.
2018-07-18 13:48:34 -06:00
pkgs expander: repair a race condition related to "available" modules 2018-07-18 10:42:27 -06:00
racket expander: different repair for race 2018-07-18 13:48:34 -06:00
.gitattributes Don't include git files in archives. 2010-05-12 01:46:05 -04:00
.gitignore gitignore: vim swapfiles 2017-07-29 11:53:06 -04:00
.mailmap mailmap updates & fixes. 2013-04-03 18:10:22 -04:00
.travis.yml Disable pkg tests on Travis. 2017-06-22 13:33:03 -04:00
appveyor.yml use VS 2013 on AppVeyor 2018-05-15 11:07:06 -06:00
INSTALL.txt io: repairs for Windows path maniplation 2018-03-23 10:37:59 -06:00
Makefile makefile: add cs-base and cs-in-place targets 2018-07-03 09:11:07 -06:00
README.md switch to a new, Racket-implemented expander & module system 2018-02-26 13:19:53 -07:00

README.md

This is the source code for the core of Racket. See "INSTALL.txt" for full information on building Racket.

To build the full Racket distribution from this repository, run make in the top-level directory. To build minimal Racket, run make base.

The rest of the Racket distribution source code is in other repositories, mostly under the Racket GitHub organization.

Contribute to Racket by submitting a pull request, joining the development mailing list, or visiting the IRC channel.

License

Racket Copyright (c) 2010-2018 PLT Design Inc.

Racket is distributed under the GNU Lesser General Public License (LGPL). This implies that you may link Racket into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify Racket; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular states that you must release the source code for the modified software.

See racket/src/COPYING_LESSER.txt for more information.