link_upstream += mkdir -p $$(@D);
link_upstream += ln -fs `echo $$(@D)/ | sed 's_[^/]*//*_../_g'`/$$< $$@
$(call link_upstream,org/xwt/mips/%.java,upstream/org.ibex.nestedvm/src,.download_org.ibex.nestedvm)
link_upstream += mkdir -p $$(@D);
link_upstream += ln -fs `echo $$(@D)/ | sed 's_[^/]*//*_../_g'`/$$< $$@
$(call link_upstream,org/xwt/mips/%.java,upstream/org.ibex.nestedvm/src,.download_org.ibex.nestedvm)