Re: [GD-DEVEL] LibGD should not link against libX11

Helllo Jonas,

On 1/2/07, Jonas Smedegaard <[email protected]> wrote:

> > libXPM links against X11, gd has it as part of the libXpm CFLAGS.
>
> It is wrong to link against anything but what is actually needed.
> Blindly inheriting linking from dependent libraries causes problems when
> some day the linking of those dependent libraries change, perhaps in
> incompatible ways. Maybe no problem on rebuild-from-scratch systems like
> Gentoo, but for Debian it causes real problems.

It is required. For example, macros can make usage of the X11
function. Also, pkg-config pkg-config --libs --cflags xpmwill tell you
which CFLAGS to use:

pkg-config --libs --cflags xpm

As far as I remember, there is also a non X dependent Xpm library. Or
if it is really a problem, I can try to include the Xpm format, just
like wbmp. But I do not think it is correct to remove -lX11 unless Xpm
CFLAGS (the cflags you have to use to link against libxmp, not the
CFLAGS used to compile libxpm do) do not return it anymore.

Can someone confirm my explanation (or "proove" it wrong)? :)

> > By the way, have you asked for a CVS account? Then you can send me a
> > tar.gz of the libgd-debian CVS tree, it can be imported in
> > gd/gd-debian.
>
> I have requested a CVS account this morning, thanks to the the helpful
> hint of Nuno Lopes.
>
> There's no libgd-debian tree to import. And if so, it would probably be
> an SVN one :-)

I saw and confirmed it. We have to wait now :)

> Should I respond only to the list or also privately like here?

I prefer the list for all discussions. Sometimes I use direct mail for
non gd specific problem but in general GD discussions can and should
stand on the list. Security or critical issues can be discussed (or
should) off list or in the upcoming issues tracker.

Cheers,
--Pierre