On 27-09-2011, at 09:15, Berend Hasselman wrote: > > > I am using Lion 10.7.1 and Xcode 4.1. gfortran from gfortran-lion-5666-3.pkg which installs gfortran into /usr/bin. And R 2..13.1 (2011-07-08). Blas library is linked to libRblas.dylib I meant linked to libRblas.0.dylib Berend