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Date:   Wed, 12 Sep 2018 16:01:07 -0300
From:   Arnaldo Carvalho de Melo <acme@redhat.com>
To:     Alexander Sverdlin <alexander.sverdlin@nokia.com>
Cc:     linux-kernel@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH] tools: Remove conflicting BITS_PER_LONG define
Message-ID: <20180912190107.GA5502@redhat.com>
References: <20180912170232.25258-1-alexander.sverdlin@nokia.com>
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Em Wed, Sep 12, 2018 at 07:02:32PM +0200, Alexander Sverdlin escreveu:
>   CC       .../tools/objtool/builtin-check.o
>   ...
> In file included from .../tools/arch/x86/include/uapi/asm/bitsperlong.h:11:0,
>                  from .../tools/include/asm-generic/bitops/__ffs.h:6,
>                  from .../tools/include/asm-generic/bitops.h:16,
>                  from .../tools/include/linux/bitops.h:35,
>                  from .../tools/include/linux/hashtable.h:13,
>                  from elf.h:24,
>                  from check.h:22,
>                  from builtin-check.c:30:
> .../tools/include/asm-generic/bitsperlong.h:8:0: error: "BITS_PER_LONG" redefined [-Werror]
>  #define BITS_PER_LONG (__CHAR_BIT__ * __SIZEOF_LONG__)
> 
> Include <asm/bitsperlong.h> instead as other headers do.

Please try test building all tools in tools/

This broke make -C tools/perf/

- Arnaldo