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I'd like to remove a package from my Gentoo system. The --unmerge option will remove the package without any consideration, and --depclean will remove the package only if there is no package installed on the system which depends on the to-be-removed package.

How can I make it remove the package and all reverse depended packages?

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First find out what the reverse dependencies are and then remove them.

Finding out what they are can be done usingequery from gentoolkit. Starting it in the depends (d) mode will find the direct dependencies and the --indirect (-D) flag will recursively look at their reverse dependencies.

You can get a copy/pasteable list of all these packages (source package not be printed there) using:

equery d -D octave | sed 's/^ *\([^ ]*\)-[0-9].*/\1/' | sort -u |  tr '\n' ' '

Note that his will only look at installed packages. If you have have already removed packages, you may have to rebuild missing dependencies (using some variation of emerge @world) before equery finds the reverse dependencies "behind" them.

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