!3 devel包空目录，依赖eigen编译的包无法找到头文件

From: @reganhe_xx
Reviewed-by: @hubble_zhu
Signed-off-by: @hubble_zhu

eigen3.spec

@@ -2,7 +2,7 @@
 
 Name:           eigen3
 Version:        3.3.8
-Release:        1%{?dist}
+Release:        2
 Summary:        A lightweight C++ template library for vector and matrix math
 
 License:        MPLv2.0 and LGPLv2+ and BSD
@@ -35,17 +35,18 @@ Provides:       %{name}-static = %{version}-%{release}
 %build
 
 %install
-install -p -d Eigen %{buildroot}/%{_includedir}/%{name}
-
-%files
-%license COPYING.README COPYING.BSD COPYING.MPL2 COPYING.LGPL
-%{_includedir}/%{name}
+install -d -p -m 0755 %{buildroot}%{_includedir}/%{name}
+cp -r Eigen unsupported %{buildroot}%{_includedir}/%{name}/
 
 %files devel
 %license COPYING.README COPYING.BSD COPYING.MPL2 COPYING.LGPL
+%defattr(0644, root, root, 0755)
 %{_includedir}/%{name}
 
 %changelog
+* Sat Mar 27 2021 herengui <herengui@uniontech.com> - 3.3.8-2
+- fix empty include directory issue
+
 * Tue Dec 1 2020 hubble_zhu<hubble_zhu@qq.com> - 3.3.8-1
 - package init