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Date: Sat, 28 Jan 2023 19:23:02 +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 18:01:44 +0100
> From: "J.W. Jagersma (jwjagersma AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
> 
> > 
> > I don't really like this "solution", it just makes it the user's problem.
> > 
> > How likely is it that someone uses the latest version of dxe3gen, but is
> > somehow stuck with such an ancient (nearly 25 years old) version of gcc?  At
> > some point you'll just have to say, for gcc < X, use dxe3gen Y.
> > 
> > For DXE_LD_LIBRARY_PATH, that can be added easily as -L dir, and won't break
> > anything.  But not having this set should not be an error.
> > 
> > For DJDIR, there is only one valid place it can point to, and gcc already knows
> > where to find it.  I don't think a native gcc even works without DJDIR set.  So
> > it doesn't make sense to also parse it in dxe3gen.
> 
> Also, with removing DXE_LD_LIBRARY_PATH, the concern was that it could break
> existing makefiles.  But now the accepted solution is... to break existing
> makefiles?  That logic is hard to follow.

If you can propose a patch that caters to your use case without
breaking the "traditional" one, please do, and let's take it from
there.

GCC 2.95 is not a blocking problem, from my POV.  But I don't want to
lose support for DJDIR and DXE_LD_LIBRARY_PATH, because someone could
have set them in their build procedures for some reason, and have them
point to some strange places that neither me nor you can imagine.

Are there any fundamental problems that would preclude invoking GCC
instead of ld (so that your case is supported), but still have the -L
switch added to the GCC command line, whose argument is derived from
DXE_LD_LIBRARY_PATH or from DJDIR if those are set?  IOW, can we have
the code work as you wanted when these two variables aren't set, but
add the additional -L switch when they are?