Hi, Effectively, the version of gcc does not matter for this kind of problem. I tried to compile in another machine with (gcc version 4.0.1 ) and I got the same errors. @Stefan : What do you mean by your point <the file lacks include guards > and how can I resolve it Thanks for your help, Abdel.

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Message: 15 Date: Thu, 12 Apr 2007 11:47:26 +0200 From: Martin Wille <mw8329@yahoo.com.au> Subject: Re: [boost] Compatibility Linux windows To: boost@lists.boost.org Message-ID: <461E002E.1070306@yahoo.com.au> Content-Type: text/plain; charset=UTF-8; format=flowed

elviin wrote:

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What is gcc -v saying?

How does that matter? Stefan already pointed out that the file lacks include guards (it does so in 1.33, too). This is a problem in stringtok.hpp and does not depend on the version of gcc.

That this error didn't become apparent und VC++ might have been caused by some compiler settings (precompiled headers, maybe?).

Regards, m

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-- Eng. (Ph.D. Candidate) LARIM Ecole Polythechnique de Montreal