libeigen: Remove LGPL code

Since libeigen is a header-only library, LGPL effectively has the same
properties as GPL when it comes to affecting the licensing of the code
that uses libeigen. To avoid the problem, backport a patch to remove all
LGPL-2.1 code from the library.

Switch to using "Minpack" rather than "MINPACK" as license since the
former is the official SPDX name.

Also correct the licenses for ${PN}, ${PN}-dbg and ${PN}-dev to reflect
that they do not contain any GPL code (the GPL code is only used for
benchmark tests and does not affect what is installed).

License-Update: Correct the license information
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 1047 insertions, 2 deletions

diff --git a/meta-oe/recipes-support/libeigen/libeigen/0002-Remove-LGPL-Code-and-references.patch b/meta-oe/recipes-support/libeigen/libeigen/0002-Remove-LGPL-Code-and-references.patch
new file mode 100644
index 0000000000..2d19bc23c8
--- /dev/null
+++ b/meta-oe/recipes-support/libeigen/libeigen/0002-Remove-LGPL-Code-and-references.patch
@@ -0,0 +1,1040 @@
+From e63a6950dbebf4dd95e5c74c423c06fd65df5182 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Antonio=20S=C3=A1nchez?= <cantonios@google.com>
+Date: Wed, 8 Feb 2023 01:25:06 +0000
+Subject: [PATCH] Remove LGPL Code and references.
+
+Upstream-Status: Backport [https://gitlab.com/libeigen/eigen/-/commit/e256ad1823c2eddd6954241ddc99bfeb7bb29cb3]
+---
+ COPYING.LGPL                                  | 502 ------------------
+ COPYING.README                                |  16 +-
+ Eigen/src/Core/util/NonMPL2.h                 |   3 -
+ .../IncompleteCholesky.h                      |   3 +-
+ bench/tensors/eigen_sycl_bench.sh             |   1 -
+ bench/tensors/eigen_sycl_bench_contract.sh    |   2 +-
+ doc/PreprocessorDirectives.dox                |   3 -
+ test/CMakeLists.txt                           |   1 -
+ test/mpl2only.cpp                             |  24 -
+ unsupported/Eigen/IterativeSolvers            |   6 -
+ .../IterativeSolvers/ConstrainedConjGrad.h    | 187 -------
+ .../IterativeSolvers/IterationController.h    | 154 ------
+ 12 files changed, 4 insertions(+), 898 deletions(-)
+ delete mode 100644 COPYING.LGPL
+ delete mode 100644 Eigen/src/Core/util/NonMPL2.h
+ delete mode 100644 test/mpl2only.cpp
+ delete mode 100644 unsupported/Eigen/src/IterativeSolvers/ConstrainedConjGrad.h
+ delete mode 100644 unsupported/Eigen/src/IterativeSolvers/IterationController.h
+
+diff --git a/COPYING.LGPL b/COPYING.LGPL
+deleted file mode 100644
+index 4362b4915..000000000
+--- a/COPYING.LGPL
++++ /dev/null
+@@ -1,502 +0,0 @@
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+diff --git a/COPYING.README b/COPYING.README
+index de5b63215..11af93ca7 100644
+--- a/COPYING.README
++++ b/COPYING.README
+@@ -2,17 +2,5 @@ Eigen is primarily MPL2 licensed. See COPYING.MPL2 and these links:
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+-under the MPL2 and possibly more permissive licenses (like BSD), #define this
+-preprocessor symbol:
+-  EIGEN_MPL2_ONLY
+-For example, with most compilers, you could add this to your project CXXFLAGS:
+-  -DEIGEN_MPL2_ONLY
+-This will cause a compilation error to be generated if you #include any code that is
+-LGPL licensed.
++Some files contain third-party code under BSD or other MPL2-compatible licenses,
++whence the other COPYING.* files here.
+\ No newline at end of file
+diff --git a/Eigen/src/Core/util/NonMPL2.h b/Eigen/src/Core/util/NonMPL2.h
+deleted file mode 100644
+index 1af67cf18..000000000
+--- a/Eigen/src/Core/util/NonMPL2.h
++++ /dev/null
+@@ -1,3 +0,0 @@
+-#ifdef EIGEN_MPL2_ONLY
+-#error Including non-MPL2 code in EIGEN_MPL2_ONLY mode
+-#endif
+diff --git a/Eigen/src/IterativeLinearSolvers/IncompleteCholesky.h b/Eigen/src/IterativeLinearSolvers/IncompleteCholesky.h
+index 7803fd817..1a5d7faeb 100644
+--- a/Eigen/src/IterativeLinearSolvers/IncompleteCholesky.h
++++ b/Eigen/src/IterativeLinearSolvers/IncompleteCholesky.h
+@@ -24,8 +24,7 @@ namespace Eigen {
+   * \tparam Scalar the scalar type of the input matrices
+   * \tparam _UpLo The triangular part that will be used for the computations. It can be Lower
+     *               or Upper. Default is Lower.
+-  * \tparam _OrderingType The ordering method to use, either AMDOrdering<> or NaturalOrdering<>. Default is AMDOrdering<int>,
+-  *                       unless EIGEN_MPL2_ONLY is defined, in which case the default is NaturalOrdering<int>.
++  * \tparam _OrderingType The ordering method to use, either AMDOrdering<> or NaturalOrdering<>. Default is AMDOrdering<int>.
+   *
+   * \implsparsesolverconcept
+   *
+diff --git a/bench/tensors/eigen_sycl_bench.sh b/bench/tensors/eigen_sycl_bench.sh
+index 3f67b3d86..4cb8f7be4 100755
+--- a/bench/tensors/eigen_sycl_bench.sh
++++ b/bench/tensors/eigen_sycl_bench.sh
+@@ -10,7 +10,6 @@ benchmark_main.cc \
+ -march=native \
+ -O3 \
+ -DNDEBUG \
+--DEIGEN_MPL2_ONLY \
+ -DEIGEN_USE_SYCL=1 \
+ -DEIGEN_SYCL_LOCAL_MEM=1 \
+ -no-serial-memop \
+diff --git a/bench/tensors/eigen_sycl_bench_contract.sh b/bench/tensors/eigen_sycl_bench_contract.sh
+index 73fd6c4a0..3ab0138a1 100644
+--- a/bench/tensors/eigen_sycl_bench_contract.sh
++++ b/bench/tensors/eigen_sycl_bench_contract.sh
+@@ -1,7 +1,7 @@
+ rm -f tensor_contract_sycl_bench
+ : "${COMPUTECPP_PACKAGE_ROOT_DIR:?Need to set COMPUTECPP_PACKAGE_ROOT_DIR}"
+ echo "COMPUTECPP_PACKAGE_ROOT_DIR is set to: "$COMPUTECPP_PACKAGE_ROOT_DIR
+-${COMPUTECPP_PACKAGE_ROOT_DIR}/bin/compute++  tensor_contract_sycl_bench.cc -I ../../ -I ${COMPUTECPP_PACKAGE_ROOT_DIR}/include/ -std=c++11 -O3 -DNDEBUG -DEIGEN_MPL2_ONLY -DEIGEN_USE_SYCL=1 -no-serial-memop -mllvm -inline-threshold=10000 -fsycl-ih-last -sycl-driver -Xclang -cl-mad-enable -lOpenCL -lComputeCpp -lpthread -o tensor_contract_sycl_bench ${@:1}
++${COMPUTECPP_PACKAGE_ROOT_DIR}/bin/compute++  tensor_contract_sycl_bench.cc -I ../../ -I ${COMPUTECPP_PACKAGE_ROOT_DIR}/include/ -std=c++11 -O3 -DNDEBUG -DEIGEN_USE_SYCL=1 -no-serial-memop -mllvm -inline-threshold=10000 -fsycl-ih-last -sycl-driver -Xclang -cl-mad-enable -lOpenCL -lComputeCpp -lpthread -o tensor_contract_sycl_bench ${@:1}
+ export LD_LIBRARY_PATH=${COMPUTECPP_PACKAGE_ROOT_DIR}/lib:$LD_LIBRARY_PATH
+ ./tensor_contract_sycl_bench
+ 
+diff --git a/doc/PreprocessorDirectives.dox b/doc/PreprocessorDirectives.dox
+index 0f545b086..b7d59ccbc 100644
+--- a/doc/PreprocessorDirectives.dox
++++ b/doc/PreprocessorDirectives.dox
+@@ -92,9 +92,6 @@ run time. However, these assertions do cost time and can thus be turned off.
+  - \b eigen_assert - macro with one argument that is used inside %Eigen for assertions. By default, it is
+    basically defined to be \c assert, which aborts the program if the assertion is violated. Redefine this
+    macro if you want to do something else, like throwing an exception.
+- - \b EIGEN_MPL2_ONLY - disable non MPL2 compatible features, or in other words disable the features which
+-   are still under the LGPL.
+-
+ 
+ \section TopicPreprocessorDirectivesPerformance Alignment, vectorization and performance tweaking
+ 
+diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
+index 5136f82aa..9f557743a 100644
+--- a/test/CMakeLists.txt
++++ b/test/CMakeLists.txt
+@@ -277,7 +277,6 @@ ei_add_test(special_numbers)
+ ei_add_test(rvalue_types)
+ ei_add_test(dense_storage)
+ ei_add_test(ctorleak)
+-ei_add_test(mpl2only)
+ ei_add_test(inplace_decomposition)
+ ei_add_test(half_float)
+ ei_add_test(bfloat16_float)
+diff --git a/test/mpl2only.cpp b/test/mpl2only.cpp
+deleted file mode 100644
+index 296350d08..000000000
+--- a/test/mpl2only.cpp
++++ /dev/null
+@@ -1,24 +0,0 @@
+-// This file is part of Eigen, a lightweight C++ template library
+-// for linear algebra.
+-//
+-// Copyright (C) 2015 Gael Guennebaud <gael.guennebaud@inria.fr>
+-//
+-// This Source Code Form is subject to the terms of the Mozilla
+-// Public License v. 2.0. If a copy of the MPL was not distributed
+-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+-
+-#ifndef EIGEN_MPL2_ONLY
+-#define EIGEN_MPL2_ONLY
+-#endif
+-#include <Eigen/Dense>
+-#include <Eigen/SparseCore>
+-#include <Eigen/SparseLU>
+-#include <Eigen/SparseQR>
+-#include <Eigen/Sparse>
+-#include <Eigen/IterativeLinearSolvers>
+-#include <Eigen/Eigen>
+-
+-int main()
+-{
+-  return 0;
+-}
+diff --git a/unsupported/Eigen/IterativeSolvers b/unsupported/Eigen/IterativeSolvers
+index a3f58d676..f045fb607 100644
+--- a/unsupported/Eigen/IterativeSolvers
++++ b/unsupported/Eigen/IterativeSolvers
+@@ -19,7 +19,6 @@
+   * \defgroup IterativeLinearSolvers_Module Iterative solvers module
+   * This module aims to provide various iterative linear and non linear solver algorithms.
+   * It currently provides:
+-  *  - a constrained conjugate gradient
+   *  - a Householder GMRES implementation
+   *  - an IDR(s) implementation
+   *  - a DGMRES implementation
+@@ -33,11 +32,6 @@
+ 
+ #include "../../Eigen/src/Core/util/DisableStupidWarnings.h"
+ 
+-#ifndef EIGEN_MPL2_ONLY
+-#include "src/IterativeSolvers/IterationController.h"
+-#include "src/IterativeSolvers/ConstrainedConjGrad.h"
+-#endif
+-
+ #include "src/IterativeSolvers/IncompleteLU.h"
+ #include "src/IterativeSolvers/GMRES.h"
+ #include "src/IterativeSolvers/DGMRES.h"
+diff --git a/unsupported/Eigen/src/IterativeSolvers/ConstrainedConjGrad.h b/unsupported/Eigen/src/IterativeSolvers/ConstrainedConjGrad.h
+deleted file mode 100644
+index e7d70f39d..000000000
+--- a/unsupported/Eigen/src/IterativeSolvers/ConstrainedConjGrad.h
++++ /dev/null
+@@ -1,187 +0,0 @@
+-// This file is part of Eigen, a lightweight C++ template library
+-// for linear algebra.
+-//
+-// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
+-
+-/* NOTE The functions of this file have been adapted from the GMM++ library */
+-
+-//========================================================================
+-//
+-// Copyright (C) 2002-2007 Yves Renard
+-//
+-// This file is a part of GETFEM++
+-//
+-// Getfem++ is free software; you can redistribute it and/or modify
+-// it under the terms of the GNU Lesser General Public License as
+-// published by the Free Software Foundation; version 2.1 of the License.
+-//
+-// This program is distributed in the hope that it will be useful,
+-// but WITHOUT ANY WARRANTY; without even the implied warranty of
+-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-// GNU Lesser General Public License for more details.
+-// You should have received a copy of the GNU Lesser General Public
+-// License along with this program; if not, write to the Free Software
+-// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301,
+-// USA.
+-//
+-//========================================================================
+-
+-#include "../../../../Eigen/src/Core/util/NonMPL2.h"
+-
+-#ifndef EIGEN_CONSTRAINEDCG_H
+-#define EIGEN_CONSTRAINEDCG_H
+-
+-#include "../../../../Eigen/Core"
+-
+-namespace Eigen { 
+-
+-namespace internal {
+-
+-/** \ingroup IterativeLinearSolvers_Module
+-  * Compute the pseudo inverse of the non-square matrix C such that
+-  * \f$ CINV = (C * C^T)^{-1} * C \f$ based on a conjugate gradient method.
+-  *
+-  * This function is internally used by constrained_cg.
+-  */
+-template <typename CMatrix, typename CINVMatrix>
+-void pseudo_inverse(const CMatrix &C, CINVMatrix &CINV)
+-{
+-  // optimisable : copie de la ligne, precalcul de C * trans(C).
+-  typedef typename CMatrix::Scalar Scalar;
+-  typedef typename CMatrix::Index Index;
+-  // FIXME use sparse vectors ?
+-  typedef Matrix<Scalar,Dynamic,1> TmpVec;
+-
+-  Index rows = C.rows(), cols = C.cols();
+-
+-  TmpVec d(rows), e(rows), l(cols), p(rows), q(rows), r(rows);
+-  Scalar rho, rho_1, alpha;
+-  d.setZero();
+-
+-  typedef Triplet<double> T;
+-  std::vector<T> tripletList;
+-    
+-  for (Index i = 0; i < rows; ++i)
+-  {
+-    d[i] = 1.0;
+-    rho = 1.0;
+-    e.setZero();
+-    r = d;
+-    p = d;
+-
+-    while (rho >= 1e-38)
+-    { /* conjugate gradient to compute e             */
+-      /* which is the i-th row of inv(C * trans(C))  */
+-      l = C.transpose() * p;
+-      q = C * l;
+-      alpha = rho / p.dot(q);
+-      e +=  alpha * p;
+-      r += -alpha * q;
+-      rho_1 = rho;
+-      rho = r.dot(r);
+-      p = (rho/rho_1) * p + r;
+-    }
+-
+-    l = C.transpose() * e; // l is the i-th row of CINV
+-    // FIXME add a generic "prune/filter" expression for both dense and sparse object to sparse
+-    for (Index j=0; j<l.size(); ++j)
+-      if (l[j]<1e-15)
+-       tripletList.push_back(T(i,j,l(j)));
+-
+-       
+-    d[i] = 0.0;
+-  }
+-  CINV.setFromTriplets(tripletList.begin(), tripletList.end());
+-}
+-
+-
+-
+-/** \ingroup IterativeLinearSolvers_Module
+-  * Constrained conjugate gradient
+-  *
+-  * Computes the minimum of \f$ 1/2((Ax).x) - bx \f$ under the constraint \f$ Cx \le f \f$
+-  */
+-template<typename TMatrix, typename CMatrix,
+-         typename VectorX, typename VectorB, typename VectorF>
+-void constrained_cg(const TMatrix& A, const CMatrix& C, VectorX& x,
+-                       const VectorB& b, const VectorF& f, IterationController &iter)
+-{
+-  using std::sqrt;
+-  typedef typename TMatrix::Scalar Scalar;
+-  typedef typename TMatrix::Index Index;
+-  typedef Matrix<Scalar,Dynamic,1>  TmpVec;
+-
+-  Scalar rho = 1.0, rho_1, lambda, gamma;
+-  Index xSize = x.size();
+-  TmpVec  p(xSize), q(xSize), q2(xSize),
+-          r(xSize), old_z(xSize), z(xSize),
+-          memox(xSize);
+-  std::vector<bool> satured(C.rows());
+-  p.setZero();
+-  iter.setRhsNorm(sqrt(b.dot(b))); // gael vect_sp(PS, b, b)
+-  if (iter.rhsNorm() == 0.0) iter.setRhsNorm(1.0);
+-
+-  SparseMatrix<Scalar,RowMajor> CINV(C.rows(), C.cols());
+-  pseudo_inverse(C, CINV);
+-
+-  while(true)
+-  {
+-    // computation of residual
+-    old_z = z;
+-    memox = x;
+-    r = b;
+-    r += A * -x;
+-    z = r;
+-    bool transition = false;
+-    for (Index i = 0; i < C.rows(); ++i)
+-    {
+-      Scalar al = C.row(i).dot(x) - f.coeff(i);
+-      if (al >= -1.0E-15)
+-      {
+-        if (!satured[i])
+-        {
+-          satured[i] = true;
+-          transition = true;
+-        }
+-        Scalar bb = CINV.row(i).dot(z);
+-        if (bb > 0.0)
+-          // FIXME: we should allow that: z += -bb * C.row(i);
+-          for (typename CMatrix::InnerIterator it(C,i); it; ++it)
+-            z.coeffRef(it.index()) -= bb*it.value();
+-      }
+-      else
+-        satured[i] = false;
+-    }
+-
+-    // descent direction
+-    rho_1 = rho;
+-    rho = r.dot(z);
+-
+-    if (iter.finished(rho)) break;
+-    if (transition || iter.first()) gamma = 0.0;
+-    else gamma = (std::max)(0.0, (rho - old_z.dot(z)) / rho_1);
+-    p = z + gamma*p;
+-
+-    ++iter;
+-    // one dimensionnal optimization
+-    q = A * p;
+-    lambda = rho / q.dot(p);
+-    for (Index i = 0; i < C.rows(); ++i)
+-    {
+-      if (!satured[i])
+-      {
+-        Scalar bb = C.row(i).dot(p) - f[i];
+-        if (bb > 0.0)
+-          lambda = (std::min)(lambda, (f.coeff(i)-C.row(i).dot(x)) / bb);
+-      }
+-    }
+-    x += lambda * p;
+-    memox -= x;
+-  }
+-}
+-
+-} // end namespace internal
+-
+-} // end namespace Eigen
+-
+-#endif // EIGEN_CONSTRAINEDCG_H
+diff --git a/unsupported/Eigen/src/IterativeSolvers/IterationController.h b/unsupported/Eigen/src/IterativeSolvers/IterationController.h
+deleted file mode 100644
+index a116e09e2..000000000
+--- a/unsupported/Eigen/src/IterativeSolvers/IterationController.h
++++ /dev/null
+@@ -1,154 +0,0 @@
+-// This file is part of Eigen, a lightweight C++ template library
+-// for linear algebra.
+-//
+-// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
+-
+-/* NOTE The class IterationController has been adapted from the iteration
+- *      class of the GMM++ and ITL libraries.
+- */
+-
+-//=======================================================================
+-// Copyright (C) 1997-2001
+-// Authors: Andrew Lumsdaine <lums@osl.iu.edu> 
+-//          Lie-Quan Lee     <llee@osl.iu.edu>
+-//
+-// This file is part of the Iterative Template Library
+-//
+-// You should have received a copy of the License Agreement for the
+-// Iterative Template Library along with the software;  see the
+-// file LICENSE.  
+-//
+-// Permission to modify the code and to distribute modified code is
+-// granted, provided the text of this NOTICE is retained, a notice that
+-// the code was modified is included with the above COPYRIGHT NOTICE and
+-// with the COPYRIGHT NOTICE in the LICENSE file, and that the LICENSE
+-// file is distributed with the modified code.
+-//
+-// LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.
+-// By way of example, but not limitation, Licensor MAKES NO
+-// REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
+-// PARTICULAR PURPOSE OR THAT THE USE OF THE LICENSED SOFTWARE COMPONENTS
+-// OR DOCUMENTATION WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS, TRADEMARKS
+-// OR OTHER RIGHTS.
+-//=======================================================================
+-
+-//========================================================================
+-//
+-// Copyright (C) 2002-2007 Yves Renard
+-//
+-// This file is a part of GETFEM++
+-//
+-// Getfem++ is free software; you can redistribute it and/or modify
+-// it under the terms of the GNU Lesser General Public License as
+-// published by the Free Software Foundation; version 2.1 of the License.
+-//
+-// This program is distributed in the hope that it will be useful,
+-// but WITHOUT ANY WARRANTY; without even the implied warranty of
+-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-// GNU Lesser General Public License for more details.
+-// You should have received a copy of the GNU Lesser General Public
+-// License along with this program; if not, write to the Free Software
+-// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301,
+-// USA.
+-//
+-//========================================================================
+-
+-#include "../../../../Eigen/src/Core/util/NonMPL2.h"
+-
+-#ifndef EIGEN_ITERATION_CONTROLLER_H
+-#define EIGEN_ITERATION_CONTROLLER_H
+-
+-namespace Eigen { 
+-
+-/** \ingroup IterativeLinearSolvers_Module
+-  * \class IterationController
+-  *
+-  * \brief Controls the iterations of the iterative solvers
+-  *
+-  * This class has been adapted from the iteration class of GMM++ and ITL libraries.
+-  *
+-  */
+-class IterationController
+-{
+-  protected :
+-    double m_rhsn;        ///< Right hand side norm
+-    size_t m_maxiter;     ///< Max. number of iterations
+-    int m_noise;          ///< if noise > 0 iterations are printed
+-    double m_resmax;      ///< maximum residual
+-    double m_resminreach, m_resadd;
+-    size_t m_nit;         ///< iteration number
+-    double m_res;         ///< last computed residual
+-    bool m_written;
+-    void (*m_callback)(const IterationController&);
+-  public :
+-
+-    void init()
+-    {
+-      m_nit = 0; m_res = 0.0; m_written = false;
+-      m_resminreach = 1E50; m_resadd = 0.0;
+-      m_callback = 0;
+-    }
+-
+-    IterationController(double r = 1.0E-8, int noi = 0, size_t mit = size_t(-1))
+-      : m_rhsn(1.0), m_maxiter(mit), m_noise(noi), m_resmax(r) { init(); }
+-
+-    void operator ++(int) { m_nit++; m_written = false; m_resadd += m_res; }
+-    void operator ++() { (*this)++; }
+-
+-    bool first() { return m_nit == 0; }
+-
+-    /* get/set the "noisyness" (verbosity) of the solvers */
+-    int noiseLevel() const { return m_noise; }
+-    void setNoiseLevel(int n) { m_noise = n; }
+-    void reduceNoiseLevel() { if (m_noise > 0) m_noise--; }
+-
+-    double maxResidual() const { return m_resmax; }
+-    void setMaxResidual(double r) { m_resmax = r; }
+-
+-    double residual() const { return m_res; }
+-
+-    /* change the user-definable callback, called after each iteration */
+-    void setCallback(void (*t)(const IterationController&))
+-    {
+-      m_callback = t;
+-    }
+-
+-    size_t iteration() const { return m_nit; }
+-    void setIteration(size_t i) { m_nit = i; }
+-
+-    size_t maxIterarions() const { return m_maxiter; }
+-    void setMaxIterations(size_t i) { m_maxiter = i; }
+-
+-    double rhsNorm() const { return m_rhsn; }
+-    void setRhsNorm(double r) { m_rhsn = r; }
+-
+-    bool converged() const { return m_res <= m_rhsn * m_resmax; }
+-    bool converged(double nr)
+-    {
+-      using std::abs;
+-      m_res = abs(nr); 
+-      m_resminreach = (std::min)(m_resminreach, m_res);
+-      return converged();
+-    }
+-    template<typename VectorType> bool converged(const VectorType &v)
+-    { return converged(v.squaredNorm()); }
+-
+-    bool finished(double nr)
+-    {
+-      if (m_callback) m_callback(*this);
+-      if (m_noise > 0 && !m_written)
+-      {
+-        converged(nr);
+-        m_written = true;
+-      }
+-      return (m_nit >= m_maxiter || converged(nr));
+-    }
+-    template <typename VectorType>
+-    bool finished(const MatrixBase<VectorType> &v)
+-    { return finished(double(v.squaredNorm())); }
+-
+-};
+-
+-} // end namespace Eigen
+-
+-#endif // EIGEN_ITERATION_CONTROLLER_H
diff --git a/meta-oe/recipes-support/libeigen/libeigen_3.4.0.bb b/meta-oe/recipes-support/libeigen/libeigen_3.4.0.bb
index 72044427dd..998a396af1 100644
--- a/meta-oe/recipes-support/libeigen/libeigen_3.4.0.bb
+++ b/meta-oe/recipes-support/libeigen/libeigen_3.4.0.bb
@@ -1,15 +1,20 @@
 DESCRIPTION = "Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms."
 HOMEPAGE = "http://eigen.tuxfamily.org/"
-LICENSE = "MPL-2.0 & Apache-2.0 & BSD-3-Clause & GPL-2.0-only & LGPL-2.1-only & MINPACK"
+LICENSE = "MPL-2.0 & Apache-2.0 & BSD-3-Clause & GPL-2.0-only & Minpack"
+# The GPL code is only used for benchmark tests and does not affect what is installed.
+LICENSE:${PN} = "MPL-2.0 & Apache-2.0 & BSD-3-Clause & Minpack"
+LICENSE:${PN}-dbg = "MPL-2.0 & Apache-2.0 & BSD-3-Clause & Minpack"
+LICENSE:${PN}-dev = "MPL-2.0 & Apache-2.0 & BSD-3-Clause & Minpack"
 LIC_FILES_CHKSUM = "file://COPYING.MPL2;md5=815ca599c9df247a0c7f619bab123dad \
+                    file://COPYING.APACHE;md5=8de23b8e93c63005353056b2475e9aa5 \
                     file://COPYING.BSD;md5=2dd0510ee95e59ca28834b875bc96596 \
                     file://COPYING.GPL;md5=d32239bcb673463ab874e80d47fae504 \
-                    file://COPYING.LGPL;md5=4fbd65380cdd255951079008b364516c \
                     file://COPYING.MINPACK;md5=71d91b0f75ce79a75d3108a72bef8116 \
 "
 
 SRC_URI = "git://gitlab.com/libeigen/eigen.git;protocol=http;branch=3.4 \
     file://0001-Default-eigen_packet_wrapper-constructor.patch \
+    file://0002-Remove-LGPL-Code-and-references.patch \
 "
 
 SRCREV = "3147391d946bb4b6c68edd901f2add6ac1f31f8c"