On Sun, 14 Apr 2024 at 01:24, Dmitry Goncharov <dgoncha...@users.sf.net> wrote: > > On Sat, Apr 13, 2024 at 12:41 AM Cedric Blancher > <cedric.blanc...@gmail.com> wrote: > > > > Good morning! > > > > Building bash HEAD on Cygwin 3.5.3 and Debian Linux 11 in make > > parallel mode issues a warning, which looks like a Makefile bug: > > $ make -h 16 > > ... > > make[1]: warning: -j16 forced in submake: resetting jobserver mode. > > ... > > Can this be fixed please? > > > It takes a certain makefile setting to cause this warning. > E.g. -j16 can be specified in the makefile on the recipe line like this > > $ ls > lib makefile > $ cat makefile > all:; $(MAKE) -C lib -j4 > $ cat lib/makefile > all:; > $ make -j2 > make -C lib -j4 > make[1]: warning: -j4 forced in submake: resetting jobserver mode. > make[1]: Entering directory > '/home/dgoncharov/src/gmake/test/jobserver_reset/lib' > make[1]: 'all' is up to date. > make[1]: Leaving directory > '/home/dgoncharov/src/gmake/test/jobserver_reset/lib' > $ > > Submake detects that it has its own -j switch and it no longer > participates in the parent make job server. > Instead, the submake will become a master of its own jobserver and run > up to 4 (in this example) jobs, and the parent make keep running its > own job server with up to 2 (in this example) jobs. > This can also be caused by settings in submake env. > See https://www.gnu.org/software/make/manual/html_node/Error-Messages.html. > > You can check what env the submake in question has and which recipe > runs it and see where this setting comes from.
We were only using make -j16 all at the bash base dir. That should NOT trigger this warning. Ced -- Cedric Blancher <cedric.blanc...@gmail.com> [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur
