MIT License

Copyright (c) 2026 pyfastmm contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Third-party code

The MIT licence above covers pyFaSTMM's own code (the Python package, the
f2py wrapper src/pyfastmm/_fortran/fastmm2_f2py.f90, the patches and the
build tooling). The compiled `pyfastmm._fastmm_ext` extension is built from
the FaSTMM2 Fortran sources (https://bitbucket.org/planetarysystemresearch/fastmm2,
a git submodule under external/fastmm2/), several of them modified by the
patches in src/pyfastmm/_fortran/patches/ (some of which change numerical
behaviour; see that directory). Those sources remain under their own
licences, reproduced in LICENSES/:

  - FaSTMM2, Copyright (c) 2025 Johannes Markkanen, TU Braunschweig:
    BSD-3-Clause (LICENSES/FaSTMM2.txt)
  - gaussquad.f90, Copyright (c) 2012 Christopher N. Gilbreth: MIT
    (LICENSES/FaSTMM2.txt)
  - sfunctions.f90, routines from Shanjie Zhang and Jianming Jin,
    "Computation of Special Functions" (Wiley, 1996), incorporated with the
    authors' permission provided the copyright is acknowledged
    (LICENSES/FaSTMM2.txt)
  - wigner.f90, Copyright (c) 2022 Oliver C. Gorton: MIT
    (LICENSES/wigner.txt)

The binary wheels additionally bundle LAPACK/BLAS and the GCC runtime
libraries (libgfortran, libgomp, libquadmath); their licences and source
locations are listed in LICENSES/bundled-libraries.txt.
