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Subject: Re: [PATCH v3] dxe3gen: invoke ld/as via gcc
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On 2023-01-29 16:20, Ozkan Sezer (sezeroz AT gmail DOT com) [via djgpp AT delorie DOT com] wrote:
>>>>> How about the following suggestion?
>>>>
>>>> Is this really needed?  IOW, can it really happen that the compiler
>>>> fails to find libgcc unless explicitly told to look in the right
>>>> directory?
>>>
>>> gcc can, but ld can not: my suggested patch is not on top of JW's patch
>>> it is against cvs where we invoke ld, not gcc. (Remember that the whole
>>> purpose of JW's patch is that dxe3gen can find libgcc automatically w/o
>>> any user effort..)
>>
>> So it's an alternative patch?
> 
> Yes
> 
>>  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.

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)

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.