On Debian and Ubuntu systems, the
needed packages to install are perl-tk, pdl, gcc,
libc6-dev
(On Ubuntu you need to enable the 'universe' package
distribution in the file
/etc/apt/sources.list
.)
We also recommend to install octaga vrml viewer from
http://www.octaga.com/download_octaga.html.
Additionally, MPICH, OpenMP (gcc-4.2 or icc or pgcc), openssh, Octave/Gnuplot, HDF and NeXus libraries may be installed, to enhance McStas clustering method and data formats.