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Date: Thu, 19 Jul 2001 10:21:30 -0400
To: Steve Lhomme <steve DOT lhomme AT free DOT fr>, cygwin AT cygwin DOT com
From: "Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
Subject: Re: Question on assert.h
In-Reply-To: <995534942.3b56a85eed508@imp.free.fr>
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At 05:29 AM 7/19/2001, Steve Lhomme wrote:
>I'm using Cygwin to compile some MinGW32 stuff. And I have some assert() calls 
>in my code. But if I understand correctly when I use the -mno-cygwin --
>target=i386-mingw32 option I get the follwing include path :
>
>GNU CPP version 2.95.3-4 (cygwin special) (80386, BSD syntax)
>#include "..." search starts here:
>#include <...> search starts here:
>  .
>  /usr/include/g++-3
>  /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-4/include
>  /usr/include
>  /usr/include/w32api
>End of search list.
>The following default directories have been omitted from the search path:
>End of omitted list.
>
>The problem is that there is an assert.h in /usr/include and one 
>in /usr/include/w32api
>The one from /usr/include has something like #define assert(x) __assert(...
>The one from /usr/include/w32api has something like #define assert(x) _assert
>(...
>
>And on the link, I get the following error :
>AEncodeProperties.o: In function `AEncodeProperties::GetChannelModeString(int) 
>const':
>/cygdrive/e/users/slhomme/lame/out_lame/AEncodeProperties.cpp:332: undefined 
>reference to `__assert'
>
>I think it should look for _assert and not __assert.
>So how can I deal with that ??? 



First, figure out which assert you want, the one from /usr/include 
or the one from /usr/include/w32api.  Then, figure out which library
has the assert definition that does with the macro you chose.  If
the library is not libcygwin.a, include it in your link line.
Presto, you're done! :-)

BTW, this doesn't appear to be a Cygwin specific problem per-se.




Larry Hall                              lhall AT rfk DOT com
RFK Partners, Inc.                      http://www.rfk.com
118 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX
                                        (508) 560-1285 - cell phone


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