Fix License, drop unnecessary dependencies

Fix License tag by adding missing license.
Drop unnecessary dependencies.

Resolves: #1967481

eigen3.spec

@@ -22,12 +22,18 @@
 %bcond_without qt
 %endif
 
+%bcond_with sparsehash
+%bcond_with suitesparse
+%bcond_with SuperLU
+%bcond_with scotch
+%bcond_with metis
+
 Name:           eigen3
 Version:        3.3.9
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        A lightweight C++ template library for vector and matrix math
 
-License:        MPLv2.0 and LGPLv2+ and BSD
+License:        MPLv2.0 and LGPLv2+ and BSD and Minpack
 URL:            http://eigen.tuxfamily.org/index.php?title=Main_Page
 Source0:        https://gitlab.com/libeigen/eigen/-/archive/%{version}/eigen-%{version}.tar.bz2
 
@@ -41,15 +47,15 @@ BuildRequires:  glew-devel
 BuildRequires:  gmp-devel
 BuildRequires:  gsl-devel
 BuildRequires:  mpfr-devel
-BuildRequires:  sparsehash-devel
-BuildRequires:  suitesparse-devel
+%{?with_sparsehash:BuildRequires:  sparsehash-devel}
+%{?with_suitesparse:BuildRequires:  suitesparse-devel}
 BuildRequires:  gcc-gfortran
-BuildRequires:  SuperLU-devel
+%{?with_SuperLU:BuildRequires:  SuperLU-devel}
 %if %{with qt}
 BuildRequires:  qt-devel
 %endif
-BuildRequires:  scotch-devel
-BuildRequires:  metis-devel
+%{?with_scotch:BuildRequires:  scotch-devel}
+%{?with_metis:BuildRequires:  metis-devel}
 
 BuildRequires:  cmake
 BuildRequires:  make
@@ -90,9 +96,9 @@ Developer documentation for Eigen.
 %cmake \
     -DINCLUDE_INSTALL_DIR=include/%{name} \
     -DBLAS_LIBRARIES="-l%{blaslib}" \
-    -DSUPERLU_INCLUDES=%{_includedir}/SuperLU \
-    -DSCOTCH_INCLUDES=%{_includedir} -DSCOTCH_LIBRARIES="scotch" \
-    -DMETIS_INCLUDES=%{_includedir} -DMETIS_LIBRARIES="metis" \
+    %{?with_SuperLU:-DSUPERLU_INCLUDES=%{_includedir}/SuperLU} \
+    %{?with_scotch:-DSCOTCH_INCLUDES=%{_includedir} -DSCOTCH_LIBRARIES="scotch"} \
+    %{?with_metis:-DMETIS_INCLUDES=%{_includedir} -DMETIS_LIBRARIES="metis"} \
     -DCMAKEPACKAGE_INSTALL_DIR=share/cmake/%{name}
 
 %cmake_build
@@ -114,7 +120,7 @@ rm -f %{_vpath_builddir}/doc/html/unsupported/installdox
 
 
 %files devel
-%license COPYING.README COPYING.BSD COPYING.MPL2 COPYING.LGPL
+%license COPYING.README COPYING.BSD COPYING.MPL2 COPYING.LGPL COPYING.MINPACK
 %{_includedir}/%{name}
 %{_datadir}/cmake/%{name}
 %{_datadir}/pkgconfig/%{name}.pc
@@ -124,6 +130,11 @@ rm -f %{_vpath_builddir}/doc/html/unsupported/installdox
 
 
 %changelog
+* Wed Jun 30 2021 Jiri Kucera <jkucera@redhat.com> - 3.3.9-6
+- Added missing Minpack license
+  Dropped unnecessary dependencies
+  Resolves: #1967481
+
 * Thu Apr 15 2021 Mohan Boddu <mboddu@redhat.com> - 3.3.9-5
 - Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937