Messages in this thread | | | Date | Thu, 10 Oct 2013 08:36:03 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 48/52] tools/perf/build: Exclude MAKEFLAGS from nested invocation |
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* Namhyung Kim <namhyung@kernel.org> wrote:
> On Tue, 8 Oct 2013 12:11:18 +0200, Ingo Molnar wrote: > > In case the user specifies MAKEFLAGS as an environment variable, > > or uses 'make -jN' explicitly, the options can conflict and result in: > > > > BUILD: Doing 'make -j8' parallel build > > make[1]: warning: -jN forced in submake: disabling jobserver mode. > > GEN common-cmds.h > > make[1]: *** write jobserver: Bad file descriptor. Stop. > > > > Make sure we invoke the main makefile in a pristine state. > > > > Users who want to do something non-standard can use the: > > > > make -f Makefile.perf > > > > method to invoke the makefile. > > Hmm... it'd be great if there's a way to detect -jN option and convert > it to the JOBS.
I looked hard but couldn't find any solution for that, GNU Make hides it. It seems to be possible on other Make platforms - so I suspect that will have to be a feature request to the GNU Make folks ...
Thanks,
Ingo
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