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Relicense this repository under Apache 2.0/MIT. (#2871)

Browse Source 
Note: the traditional Racket executable continues to incorporate
LGPLv3 code and thus modifications to it must be released under
that license. However, all Racket code in this repository, as well
as the Racket-on-Chez excutable, are more permissively licensed.

Thanks in particular to @otherjoel and @zyrolasting for their work
on this project.
This commit is contained in:
Sam Tobin-Hochstadt 2019-10-28 09:17:56 -04:00 committed by GitHub
parent 42c897a75f
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62
LICENSE
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@ -1,17 +1,41 @@
Racket is distributed under the GNU Lesser General Public License
(LGPL) version 3. 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.
Racket is distributed under the MIT license and the Apache version 2.0
license, at your option. However, Racket relies on some components
distributed under other licenses. In short:
See the file racket/src/LICENSE-LGPL.txt for the full text of the
license.
* The traditional Racket executable includes code distributed under
the GNU Lesser General Public License, version 3. This is the
executable built from code in racket/src/racket.
There may also be other licenses for code withing the Racket
distribution with which you must comply. Some of them are listed
below.
* The Racket-on-Chez executable includes code distributed under the
Apache version 2.0 license, in particular Chez Scheme.
These distinctions apply to the `racket` executable, not to Racket
source code and documentation in this repository.
See the file racket/src/LICENSE-LGPL.txt for the full text of the GNU
Lesser General Public License.
See the file racket/src/LICENSE-APACHE.txt for the full text of the
Apache version 2.0 license.
See the file racket/src/LICENSE-MIT.txt for the full text of the
MIT license.
Additionally, the default mode of building Racket will install other
packages, which are distributed under their own license. In the
default mode, all of those packages are distributed under the licenses
listed above.
There may also be other licenses for code within this repository with
which you must comply. Some of them are listed below.
The following are used in all Racket executables:
* mbed TLS. Code from mbed TLS can be found in
racket/src/rktio/rktio_sha2.c. mbed TLS is licensed under the Apache
v2.0 License.
The following are used only in the traditional Racket executable:
* libscheme. Code from libscheme can be found in racket/src/racket.
See the file racket/src/LICENSE-libscheme.txt.
@ -44,17 +68,19 @@ below.
* install. Code from install can be found in racket/src/lt/install-sh
and is distributed under the MIT license.
* MemoryModule. Code from MemoryModule can be found in
racket/src/start/MemoryModule.c. MemoryModule is distributed under
the MPL v2.0.
The following are used only in benchmarks, and are not part of the
standard Racket distribution:
* psyntax. Code from psyntax can be found in
pkgs/racket-benchmarks/tests/racket/benchmarks/common/psyntax.sch
and is distributed under the Apache v2.0 License.
* SCM. Code from SCM can be found in
pkgs/racket-benchmarks/tests/racket/benchmarks/shootout/pidigits1.rkt
SCM is available under the LGPL.
* MemoryModule. Code from MemoryModule can be found in
racket/src/start/MemoryModule.c. MemoryModule is distributed under
the MPL v2.0.
* mbed TLS. Code from mbed TLS can be found in
racket/src/rktio/rktio_sha2.c. mbed TLS is licensed under the Apache
v2.0 License.

5
README.md
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@ -34,10 +34,9 @@ joining the [development mailing list](https://lists.racket-lang.org),
or visiting the IRC or Slack channels.
By making a contribution, you are agreeing that your contribution is
licensed under the LGPLv3, Apache 2.0, and MIT licenses. Those
licensed under the Apache 2.0 and MIT licenses. Those
licenses are available in this repository in the files
[LICENSE-LGPL.txt](racket/src/LICENSE-LGPL.txt),
[LICENSE-APACHE.txt](racket/src/LICENSE-APACHE.txt), and
[LICENSE-APACHE.txt](racket/src/LICENSE-APACHE.txt) and
[LICENSE-MIT.txt](racket/src/LICENSE-MIT.txt).
License

75
racket/src/LICENSE.txt
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@ -1,22 +1,47 @@
Racket is distributed under the GNU Lesser General Public License
(LGPL) version 3. 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.
Racket is distributed under the MIT license and the Apache version 2.0
license, at your option. However, Racket relies on some components
distributed under other licenses. In short:
See the file LICENSE-LGPL.txt for the full text of the license.
* The traditional Racket executable includes code distributed under
the GNU Lesser General Public License, version 3. This is the
executable built from code in the `racket` subdirectory.
There may also be other licenses for code withing the Racket
distribution with which you must comply. Some of them are listed
below.
* The Racket-on-Chez executable includes code distributed under the
Apache version 2.0 license, in particular Chez Scheme.
These distinctions apply to the `racket` executable, not to Racket
source code and documentation in this repository.
See the file LICENSE-LGPL.txt for the full text of the GNU
Lesser General Public License.
See the file LICENSE-APACHE.txt for the full text of the
Apache version 2.0 license.
See the file LICENSE-MIT.txt for the full text of the
MIT license.
Additionally, the default mode of building Racket will install other
packages, which are distributed under their own license. In the
default mode, all of those packages are distributed under the licenses
listed above.
There may also be other licenses for code within this repository with
which you must comply. Some of them are listed below.
The following are used in all Racket executables:
* mbed TLS. Code from mbed TLS can be found in
rktio/rktio_sha2.c. mbed TLS is licensed under the Apache
v2.0 License.
The following are used only in the traditional Racket executable:
* libscheme. Code from libscheme can be found in
racket/src/racket. See the file LICENSE-libscheme.txt.
racket. See the file LICENSE-libscheme.txt
* GNU Lightning. Code from GNU Lightning can be found in
racket/src/racket/src. GNU Lightning is distributed under the GNU
racket/src. GNU Lightning is distributed under the GNU
Lesser General Public License version 3.
* GMP. Code from GMP can be found in racket/src. The
@ -31,22 +56,18 @@ below.
racket/racket/collects/file/{gzip,gunzip}.rkt. Zlib is distributed
under a liberal license, see http://zlib.net/.
* libffi. Code from libffi can be found in foreign/libffi. See
foreign/libffi/LICENSE.
* libffi. Code from libffi can be found in foreign/libffi.
See foreign/libffi/LICENSE.
* libunwind. Code from libunwind can be found in racket/src/unwind.
* libunwind. Code from libunwind can be found in
unwind.
* random.c. Code from random.c from FreeBSD 2.2 found in random.inc.
* random.c. Code from random.c from FreeBSD 2.2 found in
random.inc.
* install. Code from install can be found in lt/install-sh and is
distributed under the MIT license.
* psyntax. Code from psyntax can be found in
pkgs/racket-benchmarks/tests/racket/benchmarks/common/psyntax.sch
* install. Code from install can be found in lt/install-sh
and is distributed under the MIT license.
* MemoryModule. Code from MemoryModule can be found in
start/MemoryModule.c. MemoryModule is distributed under the MPL
v2.0.
* mbed TLS. Code from mbed TLS can be found in rktio/rktio_sha2.c.
mbed TLS is licensed under the Apache v2.0 License.
start/MemoryModule.c. MemoryModule is distributed under
the MPL v2.0.