[SOLVED] Which package has kompmgr?

[cubancigar11]

I have installed kde-3.5. Today I wanted to test the transucency. But some program named kompmgr is missing. It seems it comes with kwin. I have already installed kwin but I am still unable to find the program. Please help... I don't want to emerge the whole kde again as suggested by this post.
EDIT:
It would be great if some one with running transluceny give the output of: $ equery b kompmgr

[reaver]

do you have xcompmgr installed?

[kerstman]

Output of equery b kompgr gives:

[cubancigar11]

Installing kwin (and kicker too) with USE flag=xcomposite did the trick. It worked without installing xcompmgr