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authorUlrich Bauer <mail@ulrich-bauer.org>2018-08-28 14:49:11 +0200
committerUlrich Bauer <mail@ulrich-bauer.org>2018-08-28 14:49:11 +0200
commit5b13a77ba3c89a304ac9f3411c7121d38554a6c5 (patch)
treeb2df6b936d6a7130ae7035400df5849c347ddc59
parent0103269b97b948ac95703e6645653ea45c3751fd (diff)
added and explained CONTRIBUTING.txt
-rw-r--r--CONTRIBUTING.txt9
-rw-r--r--README.md2
2 files changed, 10 insertions, 1 deletions
diff --git a/CONTRIBUTING.txt b/CONTRIBUTING.txt
new file mode 100644
index 0000000..d17de40
--- /dev/null
+++ b/CONTRIBUTING.txt
@@ -0,0 +1,9 @@
+You are under no obligation whatsoever to provide any bug fixes, patches, or
+upgrades to the features, functionality or performance of the source code
+("Enhancements") to anyone; however, if you choose to make your Enhancements
+available either publicly, or directly to the author of this software, without
+imposing a separate written license agreement for such Enhancements, then you
+hereby grant the following license: a non-exclusive, royalty-free perpetual
+license to install, use, modify, prepare derivative works, incorporate into
+other computer software, distribute, and sublicense such enhancements or
+derivative works thereof, in binary and source code form.
diff --git a/README.md b/README.md
index 6a7acf1..cdf6db1 100644
--- a/README.md
+++ b/README.md
@@ -97,7 +97,7 @@ Prototype implementations are already avaliable; please contact the author if on
### License
-Ripser is licensed under the [MIT] license. Please contact the author if you want to use Ripser in your software under a different license.
+Ripser is licensed under the [MIT] license (`COPYING.txt`), with an extra clause (`CONTRIBUTING.txt`) clarifying the license for modifications released without an explicit written license agreement. Please contact the author if you want to use Ripser in your software under a different license.
[Ulrich Bauer]: <http://ulrich-bauer.org>
[live.ripser.org]: <http://live.ripser.org>