Uno R package -- copyright and licensing of bundled code ======================================================== Scope. This file describes the SOURCE package (the tarball). The bundled sources under inst/uno/ and inst/HiGHS/ are compiled into the package library at installation time and are then removed from the installed package (see .Rinstignore), so an installed copy of this file is self-contained: it quotes each copyright statement and names the license, and the MIT text referred to below is the one in the package's own LICENSE file (identical to the MIT text every bundled MIT component carries). The Uno R package itself -- the R code, src/uno_binding.cpp, src/dmumps_shim.c, src/dmumps_shim.h, the configure scripts, inst/build_*.sh, tools/, the vignette and the documentation -- is Copyright (c) 2026 Balasubramanian Narasimhan and is released under the MIT License (file LICENSE). For convenience the package builds and statically links the following third-party libraries from bundled source. Every bundled component is under a permissive, MIT-compatible license (MIT, BSD-3-Clause, Apache-2.0, zlib, or the Boost Software License 1.0); none is copyleft. 1. Uno (C++ nonlinear optimization solver) -- inst/uno/ Copyright (c) 2018-2026 Charlie Vanaret. MIT License. Full text: inst/uno/LICENSE in the source package (its holder line reads "2018-2025 Charlie Vanaret"; the per-file headers range from 2018 to 2026). Every source file states "See LICENSE file in the project directory", which is that file. Co-holders named on individual files (all MIT, same license text): Alexis Montoison (with Charlie Vanaret) inst/uno/interfaces/C/Uno_C_API.cpp, Uno_C_API.h -- the C API the R binding calls; compiled into the package library. inst/uno/interfaces/Fortran/uno_c.f90, uno_fortran.f90 -- installed by Uno's CMake as public headers; not compiled. inst/uno/uno/ingredients/subproblem_solvers/MA86/ -- compiled only when an HSL library is found (see "Conditional components"). Joris Gillis, Alexis Montoison and Charlie Vanaret inst/uno/uno/tools/DynamicLoader.cpp, DynamicLoader.hpp -- compiled into the package library. inst/uno/uno/ingredients/subproblem_solvers/HSL/HSLLoader.cpp, HSLLoader.hpp -- not compiled (HSL runtime loading is off). David Kiessling and Charlie Vanaret inst/uno/uno/ingredients/glob/switching/funnel_methods/FunnelMethod.cpp, FunnelMethod.hpp -- compiled into the package library. Manuel Schaich (MA27Solver.hpp), Manuel Schaich and Charlie Vanaret (MA27Solver.cpp) inst/uno/uno/ingredients/subproblem_solvers/MA27/ -- compiled only when an HSL or MA27 library is found on the build machine. Conditional components. Uno's CMake compiles its MA27, MA57 and MA86 (HSL) and BQPD interfaces only if the corresponding library is found on the build machine. None of those libraries is bundled or required; on a machine without them the files are not compiled. Not shipped. Uno's documentation (docs/, mkdocs.yml), its test suite (unotest/), the AMPL, Python, Julia and R interfaces, the C and Fortran examples, its CMake find-modules (cmake/), dependencies/, pyproject.toml and the option files for the AMPL driver are excluded from the source package (.Rbuildignore); nothing in the package build reads them. Fork additions. inst/uno/uno/tools/r_io.h and the UNO_R_PRINT console plumbing were written for this package (Balasubramanian Narasimhan) and carry Uno's header so that the tree stays uniform; they are not upstream. Acknowledgments, not copyright holders: Sven Leyffer co-developed the unification framework Uno implements (Vanaret and Leyffer, 2026, Mathematical Programming Computation, doi:10.1007/s12532-026-00310-9) and appears on no source file; some default parameter values are noted in the sources as taken from IPOPT and MadNLP (values only, no code). 2. HiGHS (LP / QP / MIP solver) -- inst/HiGHS/ Copyright (c) HiGHS authors. MIT License. Full text: inst/HiGHS/LICENSE.txt in the source package. HiGHS in turn bundles, under inst/HiGHS/extern/ and inst/HiGHS/highs/io/filereaderlp/: AMD -- approximate minimum degree ordering Copyright (c) 1996-2022 Timothy A. Davis, Patrick R. Amestoy, and Iain S. Duff. BSD-3-Clause. inst/HiGHS/extern/amd/License.txt METIS -- graph partitioning Copyright 1995-2013 Regents of the University of Minnesota. Apache License 2.0. inst/HiGHS/extern/metis/LICENSE.txt pdqsort -- pattern-defeating quicksort Copyright (c) 2021 Orson Peters. zlib License. inst/HiGHS/extern/pdqsort/license.txt zstr -- C++ zlib stream wrapper Copyright (c) 2015 Matei David, Ontario Institute for Cancer Research. MIT License. inst/HiGHS/extern/zstr/LICENSE rcm -- reverse Cuthill-McKee ordering Copyright (c) 2005 Alan George, Joseph Liu, John Burkardt. MIT License. inst/HiGHS/extern/rcm/LICENSE filereaderlp -- LP-format file reader Copyright (c) 2020 Michael Feldmeier. MIT License. inst/HiGHS/highs/io/filereaderlp/LICENSE Catch2 -- C++ test framework (used by HiGHS's own tests; not linked into the package library) Boost Software License 1.0. inst/HiGHS/extern/catch/LICENCE_1_0.txt CLI11 -- command-line parser (used by the HiGHS standalone app only; not linked into the package library) BSD-3-Clause. Header: inst/HiGHS/extern/cli11/CLI11.hpp Components NOT bundled ---------------------- MUMPS is NOT included in this package. The interior-point preset reaches MUMPS at run time through the separately installed 'rmumps' package, via the C-callables rmumps registers (see src/dmumps_shim.c, which copies no MUMPS code and only includes rmumps's headers). 'rmumps' is licensed GPL (>= 2); no MUMPS source is distributed here, and the package compiles only against rmumps's C API headers. Builds without MUMPS (HiGHS-only) are supported. BQPD, an SQP subproblem solver that Uno can optionally use, is NOT bundled, owing to its restrictive license.