Currently, site access is not configured. To install cinelerra-gg, download the slackware package build cin_5.1*.txz here. Then use
installpkg /path/cin_5.1*.txz
Remove it with:
removepkg cin
See README.pkgs
For the 32bit edition of Slackware here.
Look for a file with the syntax cinelerra-5.1-slk32-14.2-i686-DATE.txz. Extract it and run the binary "cin".
For the 64bit edition of Slackware here.
Look for a file with the syntax cinelerra-5.1-slk64-14.2-x86_64-DATE.txz. Extract it and run the binary "cin".
If you want to build Cinelerra-GG from scratch, a SlackBuild is available on our GIT repository in "blds/cin.SlackBuild".