Hello, On a machine with CentOS-5.6, I need libvorbis >= 1.2, so I have recompiled and packaged libvorbis. But I get the following error : $ rpm -U /usr/src/redhat/RPMS/x86_64/libvorbis-1.2.3-phn.1.x86_64.rpm /usr/src/redhat/RPMS/x86_64/libvorbis-devel-1.2.3-phn.1.x86_64.rpm package libvorbis-1.1.2-3.el5_4.4.x86_64 (which is newer than libvorbis-1.2.3-phn.1.x86_64) is already installed package libvorbis-devel-1.1.2-3.el5_4.4.x86_64 (which is newer than libvorbis-devel-1.2.3-phn.1.x86_64) is already installed Who knows how to make rpm understand than 1.2.3 is newer than 1.1.2 ? I have tried : %define name libvorbis Name: %{name} Provides: %{name} = %{version}-%{release} Obsoletes: %{name} < %{version}-%{release} and the same thing for %{name}-devel, but without any success. "Yum update" also fails, with the following error : Examining /usr/src/redhat/RPMS/x86_64/libvorbis-1.2.3-phn.1.x86_64.rpm: libvorbis-1.2.3-phn.1.x86_64 /usr/src/redhat/RPMS/x86_64/libvorbis-1.2.3-phn.1.x86_64.rpm: does not update installed package. Examining /usr/src/redhat/RPMS/x86_64/libvorbis-devel-1.2.3-phn.1.x86_64.rpm: libvorbis-devel-1.2.3-phn.1.x86_64 /usr/src/redhat/RPMS/x86_64/libvorbis-devel-1.2.3-phn.1.x86_64.rpm: does not update installed package. No Packages marked for Update Can someone help me ? Thanks, -- Philippe