https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53155
--- Comment #6 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #5) > Hmm, Did something change in make? It looks like make now splits -j from other flags in MFLAGS, -wkj becomes -kw -j, so the old filters probably work now...