In addition, packages for many Linux distributions are independently maintained in various locations. See
http://qgis.org/download.php for the latest information on package locations.
Packages for most of the software/libraries discussed below can be found for almost all Linux distributions. While it is possible to mix compiling from source and installing packages to meet the requirements for QGIS, sometimes this becomes tricky. Following the steps below will generally ensure a successful installation. If you are using SuSE 9.1, the LinGIS distribution ftp://ftp.lingis.org is a good choice for installing QGIS and its dependencies.