Cluster: Justus [...]
numlib/gsl/2.5-gnu-4.8
numlib/gsl/2.5-intel-17.0

Cluster: bwUniCluster [...]
numlib/gsl/1.16-intel-14.0
numlib/gsl/2.2.1-gnu-4.8
numlib/gsl/2.2.1-intel-16.0 (default)

Cluster: MLS&WISO [...]
numlib/gsl/2.1-intel-15.0
numlib/gsl/2.2.1-intel-16.0
numlib/gsl/2.4-intel-17.0

Cluster: BinAC [...]
numlib/gsl/2.1