Re: [PATCH V3] perf: Fix parallel build

From: Namhyung Kim
Date: Thu Sep 20 2012 - 22:36:05 EST


On Thu, 20 Sep 2012 21:31:44 -0500, Eric Sandeen wrote:
> Parallel builds of perf were failing for me on a 32p box, with:
>
> * new build flags or prefix
> util/pmu.l:7:23: error: pmu-bison.h: No such file or directory
>
> ...
>
> make: *** [util/pmu-flex.o] Error 1
> make: *** Waiting for unfinished jobs....
>
> This can pretty quickly be seen by adding a sleep in front of
> the bison calls in tools/perf/Makefile and running make -j4 on a
> smaller box i.e.:
>
> sleep 10; $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c
>
> Adding the following dependencies fixes it for me.
>
> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>

Reviewed-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Thanks for fixing this!
Namhyung
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