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Date: Sat, 28 Jan 2023 22:04:38 +0200
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From: "Eli Zaretskii (eliz AT gnu DOT org) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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Subject: Re: DXE3 with std::vector
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> Date: Sat, 28 Jan 2023 19:12:06 +0100
> From: "J.W. Jagersma (jwjagersma AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
> 
> > No, in a native installation libgcc and libstdc++ are in a directory
> > different from libc.  We just didn't support linking against those two
> > libraries because AFAIU it was never needed by anyone, definitely in
> > the case of libstdc++.
> 
> On my end, libc and libstdc++ are in %DJDIR%\lib\.  But I see libgcc is in
> %DJDIR%\lib\gcc\djgpp\12\.

libgcc should be in a version-specific directory under either lib/gcc
or lib/gcc-lib.   libstdc++ is normally also in that subdirectory, I
don't know why you have it in lib.  It is version-specific, so cannot
be in the general lib directory.

> It is probably possible to configure gcc/libstdc++ to place these in any
> arbitrary location.  I think it's best if dxe3gen and makefile writers have no
> knowledge of a user's particular configuration, and simply leave it to gcc to
> figure it out.

Yes, that's true.  No argument there.  I'm just saying that if someone
has some unusual (read: crazy) non-standard configuration, where
libraries can be found via these two environment variables, we
shouldn't break those unusual configurations.