Mike Andrew wrote:
>
> On Wednesday 04 July 2001 04:46, David A. Bandel wrote:
>
> > > > libz I understand. lz I do not.
> >
> > Part of your LDFLAGS. -I/usr/include or -lz. The -I is for includes
> > (header files) and the -l is for libraries. To get the library's real
> > name, you strip off the lib part. So for libpcap, it's -lpcap, and for
> > libz it's -lz. BTW, this is a compression library. But just saying lz
> > is someone getting lazy.
>
> It's the lazy bit that threw me. On a reasonable hunch that they really were
> talking about libz I created a symlink for it. That alone throws out another
> can of worms the libxx.so.1.2.99 -> 1.2 -> 1 -> ? pyramid we currently have
> in accessing 'a' library of some sort.
>
> Turns out that RH don't have a libz.so as such. (or more correctly, the rpm
> for it doesn't have one). Someone here gave an interesting opinion about the
> silly state of -devel libraries and their non-sensical existence. I'm hoping
> eventually that the version of a library will be contained as a signature to
> each function within the library rather than spaghetti we have now.
>
I have found in a number of instances, a library, say libssl.so.0.9.6.
This is supposed to have several links to it, specifically, libssl.so.0
and libssl.so. When these don't exist, sometimes things like builds
break. I picked on openssl specifically, because they do something
really silly -- the libssl.so isn't a symlink at all (as it should be)
but a complete copy. Ditto for libssl.so.0. Talk about a waste of hard
disk realty. Do that for all your libraries and you really will have
trouble (running out of disk space), but even worse, when
libssl.so.0.9.6 upgrades and libssl.so.0 and libssl.so are out of sync,
you'll see all kinds of bizarre behavior including segfaults.
Another one to look out for is not having a link libcurses.a (should
point to libncurses.a).
Ciao,
David A. Bandel
--
Focus on the dream, not the competition.
-- Nemesis Racing Team motto
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