Xref:	news2.mv.net comp.os.msdos.djgpp:2734
From:	malcolm AT manawatu DOT gen DOT nz (Malcolm Taylor)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: dir.h problem
Date:	Mon, 15 Apr 1996 09:26:15 GMT
Organization:	Grafik Software
Lines:	35
Message-ID:	<4kt899$njn@news.manawatu.gen.nz>
References:	<199604121413 DOT KAA20749 AT delorie DOT com>
Reply-To:	malcolm AT manawatu DOT gen DOT nz
NNTP-Posting-Host:	malcolm.manawatu.gen.nz
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Nick Burton <nmr AT doc DOT ntu DOT ac DOT uk> wrote:

>Please I realy, realy need help with this one as an applicaltion
>I wrote for DJGPP 2.6.3 dosent work because of this error, when
>I compile it under 2.7.2, and it must now be compiled under this!

>        struct ffblk f;
>        int done = findfirst("*.tga",&f,FA_ARCH|FA_RDONLY);

This is a known bug in the gcc2.7.2 sources. When compiling with C++
structures with the packed attribute on their members don't get packed
properly. One solution is to compile the code that requires findfirst
and findnext in C (I have used this soln). However a better solution
is to edit the dir.h file (I think, the one with struct ffblk) and
add:

#ifdef __cplusplus
#pragma pack(1)
#endif

struct ffblk ...
    ...

#ifdef __cplusplus
#pragma pack(0)
#endif

Which will fix the problem (if there is an error in the above then
feel free to correct me :)
Whenever gcc 2.7.3 comes out this problem will no longer exist.

Malcolm

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