RPM: add TDM/TDE alternatives in YAST2 for opensuse >= 15.0

redhat/main/tdebase/tdebase-14.0.0.spec

@@ -2293,6 +2293,10 @@ if [ -r "%{_sysconfdir}/init.d/xdm.tde" ]; then
   cat "%{_sysconfdir}/init.d/xdm.tde" >"%{_sysconfdir}/init.d/xdm"
 fi
 
+# openSUSE 15.0 alternatives
+%if 0%{?suse_version} >= 1500
+update-alternatives --install /usr/lib/X11/displaymanagers/default-displaymanager default-displaymanager /usr/lib/X11/displaymanagers/tdm 30 || :
+%endif
 
 %posttrans -n trinity-tdm
 # Make sure that TDM configuration files are now under '/etc/trinity/tdm'
@@ -2306,6 +2310,11 @@ fi
 %make_session
 %endif
 
+# openSUSE 15.0 alternatives
+%if 0%{?suse_version} >= 1500
+update-alternatives --remove default-displaymanager /usr/lib/X11/displaymanagers/tdm || :
+%endif
+
 ##########
 
 %package -n trinity-tdm-devel
@@ -2903,11 +2912,21 @@ TDE will start, but many good defaults will not be set.
 fndSession
 %endif
 
+# openSUSE 15.0 alternatives
+%if 0%{?suse_version} >= 1500
+update-alternatives --install /usr/share/xsessions/default.desktop default-xsession.desktop /usr/share/xsessions/tde.desktop 30 || :
+%endif
+
 %postun -n trinity-ksmserver
 %if 0%{?mdkversion} || 0%{?mgaversion}
 fndSession
 %endif
 
+# openSUSE 15.0 alternatives
+%if 0%{?suse_version} >= 1500
+update-alternatives --remove default-xsession.desktop /usr/share/xsessions/tde.desktop || :
+%endif
+
 ##########
 
 %package -n trinity-ksplash