The rmumps package bundles the software listed below, in src/vendor (see
src/vendor/README.md for how it is selected and modified). Every bundled
file keeps its original copyright and license notice; files modified for
rmumps say so in their first line.

MUMPS 5.9.1 (src/vendor/mumps; four of its headers are installed in
include/rmumps)
--------------------------------------------------------------------------
Copyright 1991-2026 CERFACS, CNRS, ENS Lyon, INP Toulouse, Inria,
Mumps Technologies, University of Bordeaux.
Licensed under the CeCILL-C license: src/vendor/mumps/LICENSE and the full
texts src/vendor/mumps/doc/CeCILL-C_V1-en.txt, CeCILL-C_V1-fr.txt.
Developers and acknowledgments: src/vendor/mumps/CREDITS.

Third-party code inside MUMPS:
 - src/vendor/mumps/src/ana_orderings.F (AMD and the routines derived
   from it):
   AMD, Copyright (c), 1996-2016, Timothy A. Davis, Patrick R. Amestoy,
   and Iain S. Duff. All Rights Reserved.
   BSD 3-clause license, text in the file header.
 - src/vendor/mumps/src/dlr_core.F, routine DMUMPS_TRUNCATED_RRQR (from
   LAPACK xGEQP3/xLAQPS):
   Copyright (c) 1992-2017 The University of Tennessee and The University
   of Tennessee Research Foundation. Copyright (c) 2000-2017 The University
   of California Berkeley. Copyright (c) 2006-2017 The University of
   Colorado Denver.
   BSD 3-clause license, text in the routine header.

PORD (src/vendor/mumps/PORD)
----------------------------
Developed by Juergen Schulze at the University of Paderborn, as part of
SPACE-1.0, which is in the public domain; see src/vendor/mumps/PORD/README.

METIS 5.1.0 (src/vendor/metis)
------------------------------
Copyright 1995-2013, Regents of the University of Minnesota (author:
George Karypis).
Licensed under the Apache License, Version 2.0: notice in
src/vendor/metis/LICENSE.txt, full text in
src/vendor/metis/LICENSE-Apache-2.0.txt.

Third-party code inside METIS/GKlib:
 - GKlib/gk_mksort.h (from glibc stdlib/qsort.c):
   Copyright (C) 1991, 1992, 1996, 1997, 1999 Free Software Foundation,
   Inc.; written by Douglas C. Schmidt.
   GNU Lesser General Public License 2.1 or later (R ships the text in
   share/licenses/LGPL-2.1).
 - GKlib/gkregex.h (from glibc regex.h):
   Copyright (C) 1985, 1989-1993, 1995-1998, 2000-2003, 2005, 2006 Free
   Software Foundation, Inc.
   GNU Lesser General Public License 2.1 or later.
 - GKlib/ms_stdint.h, GKlib/ms_inttypes.h (used only with MSVC):
   Copyright (c) 2006 Alexander Chemeris.
   BSD 3-clause license, text in the file headers.
 - GKlib/random.c, MT19937-64 code (compiled only with USE_GKRAND, which
   rmumps does not define):
   Copyright (C) 2004, Makoto Matsumoto and Takuji Nishimura.
 - libmetis/mmd.c was developed from a FORTRAN subroutine in SPARSPAK
   written by Eleanor Chu, Alan George, Joseph Liu and Esmond Ng, and
   translated to C by Chunguang Sun (no copyright notice in the file).

rmumps itself (R/, src/*.c, src/*.cpp, src/shim, inst/include/rmumps.h,
inst/include/rmumps/rmumps_api.h, and the maintainer tools in the source
repository)
----------------------------------------------------------------------
Copyright 2015-2026 INRAE/INSA/CNRS.
Copyright 2026 Balasubramanian Narasimhan: the C interface for other
packages (inst/include/rmumps/rmumps_api.h, src/rmumps_api.c), the ABI
adapters (src/rmumps_abi_adapter.h and the generated
src/rmumps_abi_adapters.c), the shim (src/shim), the test hook
(src/rmumps_testhook.cpp), the build files (src/Makevars and the generated
src/Makevars.vendor), the vendoring pipeline and its transforms (tools/),
and his changes to the other rmumps files.
Licensed under GPL (>= 2).

Note on license compatibility: the Apache License 2.0 of METIS is
compatible with version 3 of the GPL but not with version 2, so a binary
combining METIS with the rmumps code can be distributed under GPL version 3
(which "GPL (>= 2)" permits). CeCILL-C allows its components to be
integrated into a larger work distributed under another license; the
CeCILL-C files themselves stay under CeCILL-C.