File baselibs.conf of Package alsa
libasound2 obsoletes "alsa-<targettype>" provides "alsa-<targettype>" recommends "alsa-oss-<targettype>" alsa-devel requires -alsa-<targettype> requires "libasound2-<targettype> = <version>" libatopology2 alsa-topology-devel requires "libatopology2-<targettype> = <version>"