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Date:   Tue, 27 Mar 2018 14:04:54 +0800
From:   "Jin, Yao" <yao.jin@...ux.intel.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v1 2/3] perf version: Print the status of compiled-in
 libraries



On 3/27/2018 1:58 PM, Ingo Molnar wrote:
> 
> * Jin Yao <yao.jin@...ux.intel.com> wrote:
> 
>> +#ifdef HAVE_DWARF_SUPPORT
>> +#ifdef HAVE_DWARF_GETLOCATIONS
>> +#ifdef NO_GLIBC
>> +#ifdef HAVE_GTK2_SUPPORT
>> +#ifdef HAVE_LIBAUDIT_SUPPORT
>> +#ifdef HAVE_LIBBFD_SUPPORT
>> +#ifdef HAVE_LIBELF_SUPPORT
>> +#ifdef HAVE_LIBNUMA_SUPPORT
>> +#ifdef NO_LIBPERL
>> +#ifdef NO_LIBPYTHON
>> +#ifdef HAVE_SLANG_SUPPORT
>> +#ifdef HAVE_LIBCRYPTO_SUPPORT
>> +#ifdef HAVE_LIBUNWIND_SUPPORT
>> +#ifdef HAVE_DWARF_SUPPORT
>> +#ifdef HAVE_ZLIB_SUPPORT
>> +#ifdef HAVE_LZMA_SUPPORT
>> +#ifdef HAVE_AUXTRACE_SUPPORT
>> +#ifdef HAVE_LIBBPF_SUPPORT
> 
> BTW., it would be nice at this point to fix those 3 outliers that have a negation
> in their library support status macro:
> 
>> +#ifdef NO_GLIBC
>> +#ifdef NO_LIBPERL
>> +#ifdef NO_LIBPYTHON
> 
> ... and invert them back to the HAVE_* side of the logic:
> 
>> +#ifdef HAVE_GLIBC
>> +#ifdef HAVE_LIBPERL
>> +#ifdef HAVE_LIBPYTHON
> 
> That should make all related code more consistent and more readable.
> 
> Thanks,
> 
> 	Ingo
> 

Yes, it's better, thanks!
I will try to convert them to the HAVE_*.

Thanks
Jin Yao