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Subject: Re: [PATCH v3] dxe3gen: invoke ld/as via gcc
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On 2023-01-29 22:17, Ozkan Sezer (sezeroz AT gmail DOT com) [via djgpp AT delorie DOT com] wrote:
>>>>  If so, what do you suggest to do with
>>>> libstdc++, which AFAIU was the original motivation for the change?
>>>
>>> Aren't all gcc-provided versioned libraries residing in the same dir?
>>> My patch just relies on that.
>>
>> It is probably possible to configure different directories for libstdc++
>> and libgcc.  The native gpp*b.zip packages on ftp seem to do that.
> 
> I took gcc1030b.zip and its companion gpp1030b.zip as an example: libgcc
> is under <base>/lib/gcc/djgpp/10, whereas libssp and libstdc++ are under
> <base>/lib, and my version handles both.
> 
>> But another benefit of using gcc to invoke the linker, is that additional
>> default library paths can be added via the specs file.  For example, with
>> my toolchain packages for Debian, linking via gcc will search:
>>
>> /usr/i386-pc-msdosdjgpp/local/lib     (libraries compiled by user)
>> /usr/lib/gcc/i386-pc-msdosdjgpp/x.x.x (gcc / libstdc++ libraries)
>> /usr/i386-pc-msdosdjgpp/lib           (libraries installed via package manager)
> 
> Yes, that's an advantage.
> 
>> And of course, users will no longer need to set any environment vars to
>> run dxe3gen.  It will just work "out of the box".  That wasn't the initial
>> goal, but I think it's a welcome side-effect.
> 
> Yes, that's another advantage.
> 
> The only downside to your patch is that older gcc versions have a problem
> handling -T on their command line, which is why I had gone back.  I don't
> have a solution for that, buit I honestly haven't tried very much.
> 
> Eli, DJ: What do you guys think?

Consider also: gcc 2.95 is in the deleted/ directory on ftp.  To me, that would
indicate that it's no longer supported, and that code in cvs does not
necessarily need to be compatible with it.