https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109898
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Sergei Trofimovich from comment #0) > --- gcc-12.2.0/gcc/Makefile.in 2022-08-19 10:09:52.280658631 +0200 > +++ gcc-12.2.0-new/gcc/Makefile.in 2023-05-04 14:35:44.401420184 +0200 > @@ -3781,6 +3781,11 @@ > fi; \ > fi > > +# We don't care about the order in which the info files are built, but > +# install-info doesn't support multiple parallel invocations writing to > +# the same `dir-file`, so we have to disable parallelism for that reason: > +.NOTPARALLEL: install-info Prerequisites of .NOTPARALLEL are ignored, so doesn't this un-parallelize building the entire gcc sub-dir?
