Fix license attribution for original SLICOT

jamestjsp · claude · jamestjsp · commit cfdc496ef6b5 · 2026-01-31T13:38:05.000-06:00
- Add LICENSE-SLICOT for original SLICOT Team copyright
- Update LICENSE to only claim C11 translation/bindings
- Update pyproject.toml to include both license files
- Update README with proper attribution to NICONET e.V.

Co-Authored-By: Claude Opus 4.5 &lt;noreply@anthropic.com&gt;
diff --git a/LICENSE b/LICENSE
@@ -1,7 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 1996-2025, The SLICOT Team (original Fortran77 code)
-Copyright (c) 2025, slicot contributors (C11 translation)
+Copyright (c) 2025, slicot contributors (C11 translation and Python bindings)
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -28,3 +27,13 @@ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+---
+
+This project is a derivative work based on SLICOT (Subroutine Library In
+COntrol Theory), which is licensed separately. See LICENSE-SLICOT for the
+original SLICOT license terms.
+
+The original SLICOT library is copyright (c) 1996-2025 The SLICOT Team and
+is maintained by NICONET e.V. For more information, see:
+https://www.slicot.org/
diff --git a/LICENSE-SLICOT b/LICENSE-SLICOT
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 1996-2025, The SLICOT Team
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
@@ -75,4 +75,6 @@ I don't accept direct contributions. Issues and PRs are welcome for illustration
 
 ## License
 
-BSD-3-Clause. See [LICENSE](LICENSE).
+This project (C11 translation and Python bindings) is BSD-3-Clause. See [LICENSE](LICENSE).
+
+The original SLICOT library is copyright © 1996-2025 The SLICOT Team, maintained by [NICONET e.V.](https://www.slicot.org/), and licensed under BSD-3-Clause. See [LICENSE-SLICOT](LICENSE-SLICOT).
diff --git a/pyproject.toml b/pyproject.toml
@@ -8,7 +8,7 @@ version = "1.0.11"
 description = "Python bindings for SLICOT - Subroutine Library in Control Theory"
 readme = "README.md"
 license = "BSD-3-Clause"
-license-files = ["LICENSE"]
+license-files = ["LICENSE", "LICENSE-SLICOT"]
 requires-python = ">=3.11"
 authors = [
     { name = "SLICOT Contributors" }
