diff --git a/Make_relative_path_variables_of_type_STRING.patch b/Make_relative_path_variables_of_type_STRING.patch
new file mode 100644
index 0000000000000000000000000000000000000000..43e0af6863bbb5705123540bc8e425abfecc10bd
--- /dev/null
+++ b/Make_relative_path_variables_of_type_STRING.patch
@@ -0,0 +1,42 @@
+From 1b080fdcb96455cdfa0f955cc7f24f7e51da0639 Mon Sep 17 00:00:00 2001
+From: Alexander Grund <github@grundis.de>
+Date: Mon, 28 Sep 2020 16:39:48 +0000
+Subject: [PATCH] Make relative path variables of type STRING
+
+When the type is PATH an absolute path is expected and user-defined
+values are converted into absolute paths relative to the current directory.
+
+Fixes #1990
+
+(cherry picked from commit a967fadb21c17622c6cdec13ad9c827054624eb4)
+---
+ CMakeLists.txt | 13 +++++++++----
+ 1 file changed, 9 insertions(+), 4 deletions(-)
+
+--- a/CMakeLists.txt	2021-08-19 04:41:58.000000000 +0800
++++ b/CMakeLists.txt	2022-06-14 11:24:31.569759300 +0800
+@@ -427,20 +427,20 @@
+ 
+ if(EIGEN_INCLUDE_INSTALL_DIR AND NOT INCLUDE_INSTALL_DIR)
+   set(INCLUDE_INSTALL_DIR ${EIGEN_INCLUDE_INSTALL_DIR}
+-      CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where Eigen header files are installed")
++      CACHE STRING "The directory relative to CMAKE_INSTALL_PREFIX where Eigen header files are installed")
+ else()
+   set(INCLUDE_INSTALL_DIR
+       "${CMAKE_INSTALL_INCLUDEDIR}/eigen3"
+-      CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where Eigen header files are installed"
++      CACHE STRING "The directory relative to CMAKE_INSTALL_PREFIX where Eigen header files are installed"
+       )
+ endif()
+ set(CMAKEPACKAGE_INSTALL_DIR
+     "${CMAKE_INSTALL_DATADIR}/eigen3/cmake"
+-    CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where Eigen3Config.cmake is installed"
++    CACHE STRING "The directory relative to CMAKE_INSTALL_PREFIX where Eigen3Config.cmake is installed"
+     )
+ set(PKGCONFIG_INSTALL_DIR
+     "${CMAKE_INSTALL_DATADIR}/pkgconfig"
+-    CACHE PATH "The directory relative to CMAKE_INSTALL_PREFIX where eigen3.pc is installed"
++    CACHE STRING "The directory relative to CMAKE_INSTALL_PREFIX where eigen3.pc is installed"
+     )
+ 
+ foreach(var INCLUDE_INSTALL_DIR CMAKEPACKAGE_INSTALL_DIR PKGCONFIG_INSTALL_DIR)
diff --git a/eigen-3.4.0.tar.bz2 b/eigen-3.4.0.tar.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..b182c40516f8e83806d718868df1284007a35a6e
Binary files /dev/null and b/eigen-3.4.0.tar.bz2 differ
diff --git a/eigen3.spec b/eigen3.spec
new file mode 100644
index 0000000000000000000000000000000000000000..3b48b47cd510157dc7cf07b001111a98bfcaffc0
--- /dev/null
+++ b/eigen3.spec
@@ -0,0 +1,107 @@
+# The (empty) main package is arch, to have the package built and tests run
+# on all arches, but the actual result package is the noarch -devel subpackge.
+# Debuginfo packages are disabled to prevent rpmbuild from generating an empty
+# debuginfo package for the empty main package.
+%global debug_package %{nil}
+
+
+%global blaslib openblas
+
+Name:           eigen3
+Version:        3.4.0
+Release:        1
+Summary:        A lightweight C++ template library for vector and matrix math
+
+License:        MPLv2.0 and LGPLv2+ and BSD
+URL:            http://eigen.tuxfamily.org/index.php?title=Main_Page
+Source0:        https://gitlab.com/libeigen/eigen/-/archive/%{version}/eigen-%{version}.tar.bz2
+Patch01:        Make_relative_path_variables_of_type_STRING.patch
+
+BuildRequires:  %{blaslib}-devel
+BuildRequires:  fftw-devel
+BuildRequires:  glew-devel
+BuildRequires:  gmp-devel
+BuildRequires:  gsl-devel
+BuildRequires:  mpfr-devel
+BuildRequires:  sparsehash-devel
+BuildRequires:  suitesparse-devel
+BuildRequires:  gcc-gfortran
+BuildRequires:  SuperLU-devel
+BuildRequires:  qt-devel
+BuildRequires:  scotch-devel
+BuildRequires:  metis-devel
+
+BuildRequires:  cmake
+BuildRequires:  make
+BuildRequires:  gcc-c++
+BuildRequires:  doxygen
+BuildRequires:  graphviz
+BuildRequires:  tex(latex)
+
+%description
+%{summary}.
+
+
+%package devel
+Summary:        A lightweight C++ template library for vector and matrix math
+BuildArch:      noarch
+# -devel subpkg only atm, compat with other distros
+Provides:       %{name} = %{version}-%{release}
+# not *strictly* a -static pkg, but the results are the same
+Provides:       %{name}-static = %{version}-%{release}
+
+%description devel
+%{summary}.
+
+%package doc
+Summary:        Developer documentation for Eigen
+Requires:       %{name}-devel = %{version}-%{release}
+BuildArch:      noarch
+
+%description doc
+Developer documentation for Eigen.
+
+
+%prep
+%autosetup -p1 -n eigen-%{version}
+
+
+%build
+%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" \
+    -DCMAKEPACKAGE_INSTALL_DIR=share/cmake/%{name}
+
+%cmake_build
+%cmake_build --target doc
+
+rm -f doc/html/installdox
+rm -f doc/html/unsupported/installdox
+
+
+%install
+cd build
+%cmake_install
+
+
+%check
+export EIGEN_SEED=100
+export EIGEN_REPEAT=1
+ctest -V
+
+%files devel
+%license COPYING.README COPYING.BSD COPYING.MPL2 COPYING.LGPL
+%{_includedir}/%{name}
+%{_datadir}/cmake/%{name}
+%{_datadir}/pkgconfig/%{name}.pc
+
+%files doc
+%doc build/doc/html
+
+
+%changelog
+* Wed Jun 15 2022 lvxiaoqian <xiaoqian@nj.iscas.ac.cn> - 3.4.0-1
+- Initial package