Hey Alberto, You will probably run into more errors down the road with such old gcc version. I think minimal requirements for llvm these days is gcc4.6 where more c++11 features are supported.
I've been building julia for scientific linux 6.2 (centOS) for quite some time and what worked so far for me is just to build it with recent gcc 4.8.2 The easiest way to get set it up is to download devtoolset and build Julia in devtoolset envionment. http://people.centos.org/tru/devtools-2/ http://linux.web.cern.ch/linux/devtoolset/ Hope it helps, Kuba
