RPM: enable xsession file on Mageia 6

redhat/main/tdebase/tdebase-14.0.0.spec

@@ -2175,7 +2175,7 @@ already. Most users won't need this.
 %if 0%{?fedora} >= 18 || 0%{?rhel} >= 7
 /usr/lib/systemd/system/tdm.service
 %endif
-%if 0%{?rhel} || 0%{?fedora} || 0%{?suse_version}
+%if 0%{?rhel} || 0%{?fedora} || 0%{?suse_version} || 0%{?mgaversion} >= 6
 %{_datadir}/xsessions/tde.desktop
 %endif
 
@@ -3358,7 +3358,7 @@ fi
 # Adds a GDM/KDM/XDM session called 'TDE'
 
 # Under RHEL/Fedora/Suse, static 'xsessions' files go to '/usr/share/xsessions'.
-%if 0%{?rhel} || 0%{?fedora} || 0%{?suse_version}
+%if 0%{?rhel} || 0%{?fedora} || 0%{?suse_version} || 0%{?mgaversion} >= 6
 %__install -D -m 644 \
 	"%{?buildroot}%{tdm_datadir}/sessions/tde.desktop" \
 	"%{?buildroot}%{_datadir}/xsessions/tde.desktop"