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Date: Tue, 14 Oct 2014 21:13:45 -0600
From: Jens Axboe <axboe@kernel.dk>
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Subject: Re: BUG - Cannot build fio on redhat 5
References: <CAMA-6iaCvppOLvBOP6K2+Gt-BEo5x_m_BXvq8xs8K8ezgt132w@mail.gmail.com> <543D907B.3080005@kernel.dk>
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To: Tim Delaney <2timdelaney@gmail.com>, fio@vger.kernel.org, Stephen Cameron <stephenmcameron@gmail.com>
List-ID: <fio@vger.kernel.org>

On 2014-10-14 15:07, Jens Axboe wrote:
> On 10/14/2014 01:58 PM, Tim Delaney wrote:
>> Trying to make fio on redhat 5.9 results in:
>>
>>      lex: unknown flag '-'.  For usage, try
>>              lex --help
>>      make: *** [lex.yy.c] Error 1
>>
>> Changeset "c9fa1c8d (Stephen M. Cameron  2014-10-06 17:58:32 -0500
>> 270)" introduced the lex '--header-file' option, but that option is
>> not valid on redhat 5.
>>
>> Makefile diff...
>>
>>       ifdef CONFIG_ARITHMETIC
>>       lex.yy.c: exp/expression-parser.l
>>      -       $(QUIET_LEX)$(LEX) exp/expression-parser.l
>>      +       $(QUIET_LEX)$(LEX) --header-file=lexer.h exp/expression-parser.l
>
> Stephen, ideas on how to work around this? Would be nice if we could
> make-do without the lexer.h generation. Unfortunately I don't have a
> RHEL5 here.
>
> Tim, what does lex --version and flex --version say?

I think it should work now, for both OSX and Linux without warning, and 
without needing --header-file.

Tim, can you double check if it works for you if you pull -git?

-- 
Jens Axboe