https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84402
--- Comment #43 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Eric Gallager from comment #42) > Is this just about parallelism bottlenecks for the main build target (e.g. > just `make` or `make all`), or does it apply to other Makefile targets, too? > (e.g. the testsuite via `make check`, or docs via `make pdf` or something) Well, it was intended to cover only the main build, which pdf can be seen as part of. On the other hand, `make check` should belong to a different PR if you have troubles with it.