https://fedoraproject.org/wiki/Archive:Tools/RPM/VersionComparison?rd=Tools/RPM/VersionComparison
http://rpm5.org/docs/api/dependencies.html
http://www.rpm.org/max-rpm-snapshot/s1-rpm-depend-manual-dependencies.html
原文：http://www.cnblogs.com/xuxm2007/p/5585894.html