update spec file to handle EL selinux reqs

nextcloud-client.spec

@@ -17,6 +17,12 @@ Source1:        com.nextcloud.desktopclient.nextcloud.metainfo.xml
 # https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/3BVLBS4B3XHJEXFVGD7RK2ZMXZG6JQZT/
 Patch0: xcb_%{version}.patch
 
+
+%if 0%{?rhel}
+BuildRequires:  rpmautospec-rpm-macros
+BuildRequires:  policycoreutils
+%endif
+
 BuildRequires:  check
 BuildRequires:  chrpath
 BuildRequires:  cmake
@@ -186,6 +192,15 @@ rm -rf %{buildroot}%{_datadir}/nemo-python/
 rm -rf %{buildroot}%{_datadir}/caja-python/
 %endif
 
+%post
+%if 0%{?rhel}
+setsebool -P selinuxuser_execmod=on
+%endif
+
+%postun
+%if 0%{?rhel}
+setsebool -P selinuxuser_execmod=off
+%endif
 
 %check
 appstream-util validate-relax --nonet %{buildroot}%{_datadir}/metainfo/com.nextcloud.desktopclient.nextcloud.metainfo.xml