Re: libstdc++

[Ralf Wildenhues]

Hi Ethan,

* Ethan A Burns wrote on Thu, Oct 27, 2005 at 06:14:16PM CEST:
>
>       Sorry, I did not realize I didn't have the list CCed.

No problem at all.  The reminder is also to avoid unpleasant surprises
on your side.  ;-)

> I removed the sdl-config -libs from the configure script with the same
> results.

OK.  It /could/ be that this may actually break things, but it looks
like it doesn't.  (The underlying issue here is that `sdl-config -libs'
just should not output the /usr/lib part, the fact that you are using it
in general is quite alright.)

> I also ran the debug command that you requested the output should be
> attached as a .bz2.

Thanks.  It confirms my suspicion:  The file
  /usr/lib/libSDL.la
contains a reference to
  //usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.5-20050130/libstdc++.la

and surely /home/eaburns/emf-0.9_1/src/libemf.la does, too, because it
links against the former and thus picked it up.

As I don't know gentoo too well, I'm not certain about who is the
culprit here.  I *believe* libSDL does not contain C++ code, so it
should not have been linked against libstdc++, consequently
/usr/lib/libSDL.la should not reference it.  Did you compile the
installed libSDL yourself?  If not, I guess it would be best if you
filed a bug with the corresponding gentoo package, so it can be fixed
upstream.

If libSDL instead *does* contain C++ code, then instead there probably
should be a (developer) package dependency on the C++ library, I guess.
(I really don't know how gentoo does this stuff, so I'm extrapolating
Debian here, hand-wavingly :)

As a workaround, you could remove the libstdc++ part (not the rest!) in
the dependency_libs line from /usr/lib/libSDL.la, then relink your
package (be sure to recreate /home/eaburns/emf-0.9_1/src/libemf.la as
well!).  Then everything should work, given that libstdc++ really isn't
needed.

Finally, if I may add a completely unrelated hint: there already exists
a package libEMF[1], which may or may not be related to your package.
If it's not, it may prove beneficial to both if they had distinct names.
:-)

Cheers,
Ralf

[1] See http://libemf.sf.net/.  No, I don't have any affiliation with
it, I just happen to have used it before.