This issue is not related to the code itself but with the download page on the website :
http://icculus.org/gtkradiant/downloads.html
( I couldn't find a better way to contact you, sorry ! )
The download links of "GtkRadiant 1.6.4 for Linux 64-bit" (and 32 bit) seems to be broken.
It looked like a redirection from amazon because they changed their domain/subdomain name structure, so I tried to guess what it could be now and I figured out that instead of this broken link :
Hello guys !
This issue is not related to the code itself but with the download page on the website : http://icculus.org/gtkradiant/downloads.html ( I couldn't find a better way to contact you, sorry ! )
The download links of "GtkRadiant 1.6.4 for Linux 64-bit" (and 32 bit) seems to be broken.
It looked like a redirection from amazon because they changed their domain/subdomain name structure, so I tried to guess what it could be now and I figured out that instead of this broken link :
http://www.amazonaws.com/GtkRadiant/GtkRadiant-1.6.4-Linux-x86_64-20131213.tar.gz
The link should be :
http://s3.amazonaws.com/GtkRadiant/GtkRadiant-1.6.4-Linux-x86_64-20131213.tar.gz
Hope it helps ! :)