From: Ingo Molnar <mingo@kernel.org>
Date: Fri, 4 Oct 2013 09:11:32 +0000 (+0200)
Subject: tools/perf/build: Exclude MAKEFLAGS from nested invocation
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~41^2~28^2~113
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=684f434cc05a122938b75e055d7d799f1dd58d55;p=pandora-kernel.git

tools/perf/build: Exclude MAKEFLAGS from nested invocation

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.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-uen6hzTvkqqngqwjma9yoEgw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

Reading git-diff-tree failed