Fink's good for something after all!
I do not like Fink. Every time I try it it bites me in the ass at some indeterminate date. But I finally found a use for it today.
No, I didn't install it. But in the source distribution you can find a newer libtool than what is provided by Apple... and it worked wonders in getting some open source packages to build and link the right way on Mac OS X.
So, if you have problems with libraries, try the config.* and ltconfig from Fink instead of Apple's.
That is all.