/tmp folders and files dleteable?

Hi folks,

  Say I download from the SlackBuilds repository some app. I also download all the 
necessary things to build it with (app.SlackBuild, app.info, etc). I go through the motion 
of building it with ./app.SlackBuild and it puts the new app.tgz file in /tmp in root.

  I then install that app.tgz and I'm done. Now I want to clean up. So I go to /tmp and 
see app.tgz and a folder with all the files and folders it came with and was untarred to 
to build it.

  Can I delete this tarball and the folder or is the app now working *from* that folder 
now that it's installed?

  Hopefully I'm making sense, as I want to try out Icecat and the tarball alone is 500+ MB 
and to have a folder of it also now takes up 1 GB, then to have a built tgz of it will 
make a grand total of 1.5 GB - all redundant, at least it seems so to me, thus my asking 
this question.

  John



-- 
All that is necessary for the triumph of evil is that good men do nothing.  -Edmund Burke