Gentoo's Bugzilla –
Attachment 327292 Details for
Bug 439498net-libs/opal-3.10.8 - make[1]: *** No rule to make target `.../work/opal-3.10.8/lib_linux_x86_64/obj/java_swig_wrapper.o', needed by `.../work/opal-3.10.8/lib_linux_x86_64/libopal_s.a'. Stop.