My questions is being asked before I create a problem so if this needs to be moved to another section of the forum Mods please go ahead

I am about to install Conky but I want Lua support.
I am looking at keeping Salix "clean" so I was looking at installing it through the Salix tools.
The "pre-problem question is":
Can I install it through Gslapt or Sourcery with LUA support? If so how?
The instructions at Slackbuilds says the following:
The key being runing the script like LUA=yesTo enable lua scripting engine support, you will need lua, imlib2, and
tolua++, and run this script like this: LUA=yes ./conky.SlackBuild
If I can't, can I just use installpkg the Slack way?
Thanks in advance for the responses!