Re: [PATCH 48/52] tools/perf/build: Exclude MAKEFLAGS from nested invocation

[Namhyung Kim]

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.

Thanks,
Namhyung
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