Re: [gentoo-user] How to comletely remove some package?

[Zac Medico <zmedico@gmail.com>]

Mark Knecht wrote:
> Generally speaking, something like:
> 
> 1) emerge -Cp package
> 2) emerge -pv --deep --update --newuse world
> 3) emerge -pv --depclean
> 4) revdep-rebuild -p
> 
> This should get rid of a package and any dependencies that are no longer needed.
> 
> NOTE: There have been some discussions about needing to do one or more
> of these steps multiple times. Hopefully my answer will spur someone
> with knowledge of that to point out if and when that is required.
> 
> Cheers,
> Mark
> 

At build time, some packages will link against unwanted libraries.  Even though the unwanted library may not be strictly required, the ebuild may not support a way to disable it with use flags.  For this reason, it's a good idea to add another step to your sequence:

1.5) emerge -av depclean

Some libraries that seem to actually link against the installed version at build time.  This results in broken dynamic links when the installed version is replaced with the freshly built one.  In these situations, a simple workaround is to unmerge the installed version before rebuilding it.

Zac
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