How does rpm resolve library dependencies?

I think this is limitation or bug in current rpm/rpmbuild versions. I reported this issue so I think in a way question is answered:

https://bugzilla.novell.com/show_bug.cgi?id=697943

You always have to install wx rpms in pairs — one with real library, the other package which simply says "the library was installed".

• libwx_baseu_net-2_8-0-wxcontainer-2.8.12-3.1.x86_64
• libwx_baseu_net-2_8-0-compat-lib-wxcontainer-2.8.12-3.1.x86_64

Without the second rpm, the package manager and/or dependent application would not know that the corresponding wx library is present at all.