The new versions of portage now default to automatically unmerging older versions of a package when things are upgraded. This behavior is not necessarily appropriate when installing new kernel sources, though. The old sources shouldn't be removed until the kernel they built is no longer being used. A somewhat more challenging issue is that packages which depend on the kernel, like alsa or the NVidia drivers, don't need to be re-emerged when the kernel sources are updated, but rather when a new kernel is acually built.
what kernels are you experiencing this problem with ? it wouldnt be a problem if they were SLOT-ed correctly
*adds slot to kernels
hmm... maybe... I don't like this, cuz this can cause a person's kernel source dir to grow unmanagebly huge really really fast lost linux-2.4.20-lolo-r1_pre5 # du -s /usr/src 2466230 /usr/src And that is with portage auto-cleaning things... Meh, i guess we just have to trust users to rm -rf /usr/src/linux-blah when they are done with it...
ok, done.
I renamed the variable to README_GENTOO_SUFFIX to make it less generic.