QCachegrind is a program which is like KCachegrind and is included in the kcachegrind source code directory, but doesn't depend on any KDE stuff. It's not installed by default. Also, I'm not entirely sure how complete it is, but it does seem to have a similar size (in terms of lines of code, at least) to kcachegrind. Reproducible: Always
Question - why? :) I don't really see the point in installing something upstream clearly doesn't want to. Sorry, that's a no go.
Because I don't want to have to deal with KDE's dependency bloat. Other bugs which would mitigate the issue (such as bug 330817) are not being fixed, so this is a good way to sidestep the issue. Although there is a README in the qcachegrind directory saying that it is mostly example code, a cursory look at the SVN log and source code suggests to me that it is pretty complete. In addition, it gets first-class treatment in the main README file for the whole package, and simple compilation instructions are given. If you want to discourage people installing it, you can mask the USE flag. If you don't want to deal with this right now, feel free. But don't close it just to make your bug list shorter.
At this time being this feature request *is* invalid. When it's officially available in buildsystem (not just in outdated README files), we will gladly make it available here. So why don't you reopen this bug *when* qcachegrind is actually available?