https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109951
--- Comment #7 from Thomas Schwinge <tschwinge at gcc dot gnu.org> --- (In reply to Iain Sandoe from comment #4) > I am also somewhat puzzled by what conditions I need to take advantage of > the parallel running? > Darwin has /usr/bin/getconf and AFAICT the number of cpus is reported OK > both at runtime and during config, but it seems to be determined to run a > single process. Answered in <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66005#c18> -- sorry, forgot to put you in CC.