On 7 July 2015 at 16:26, Rai, Raj (CSSA) wrote: > Hi Wakely > > Thank you very much for your response. Looks straight forward but looks not able to download prerequisites .Any work around to overcome from this ?Do it needs port opening or adding to hosts file will work or need to enable ftp ? It looks like you're on a machine without internet access, you'll have to figure that out yourself, that's not a GCC problem. The download_prerequisites script is very simple, you can read it yourself and see what it does, then retrieve the files and unpack them by hand. It's still much simpler than installing gmp, mpfr etc by hand.