libdb-4_8
 obsoletes "libdb-<targettype> < <version>"
 provides "libdb-<targettype> = <version>"
libdb-4_8-devel
 requires -libdb-<targettype>
 requires "libdb-4_8-<targettype> = <version>"
 conflicts "libdb-4-<targettype>"
 provides "libdb-4-<targettype>"