[gentoo-user] openssl upgrade may miss some needed rebuilds

[walt]

Today's upgrade of openssl to 1.0.2g-r1 may cause some necessary
rebuilds to fail due to missing symbol errors.

Example:  libcurl was broken and caused the rebuilds of virtualbox and
git to fail until I forced a rebuild of curl.  Any installed package
that is actually linked against openssl will be affected by this,
notably curl or wget, which may prevent portage from fetching source
files.

I suggest using quickpkg to back up openssl before the upgrade in case
you need to recover urgently in the middle of the update.