File baselibs.conf of Package arpack-ng
libarpack2 libparpack2-openmpi arpack-ng-devel requires -arpack-ng-<targettype> requires "libarpack2-<targettype> = <version>" parpack-openmpi-devel requires -parpack-openmpi-<targettype> requires "libparpack2-openmpi-<targettype> = <version>"