On Wed, Nov 28, 2012 at 4:01 PM, Jeff Lake <admin at michiganwxsystem.com> wrote: > had the same problem on my centOS 6 box qwt seems to be available in CentOS 6.3: [mbaudier at mostar ~]$ sudo yum list qwt Installed Packages qwt.x86_64 5.1.1-4.1.el6 @base But on RHEL6, maybe one needs to activate the 'optional' channel (required by EPEL and thus ELGIS)