On Thu, Oct 21, 2010 at 2:58 PM, Grant <emailgr...@gmail.com> wrote: > I just upgraded from gcc-4.4.3-r2 to gcc-4.4.4-r2 and I'm wondering if > I really need to rebuild everything as it says in the guide: > > http://www.gentoo.org/doc/en/gcc-upgrading.xml > > If not, when is it necessary?
As that guide says: "Generally speaking, upgrades to bug fix releases, like from 3.3.5 to 3.3.6, should be quite safe -- just emerge new version, switch your system to use it and rebuild the only affected package, libtool." The "General Upgrade Instructions" are more for major version changes. I don't think 4.4.3 to 4.4.4 is considered an upgrade in this sense, just a minor update. I think even on larger upgrade, like 4.3 to 4.4, it's only necessary to rebuild everything if libstdc++.so's major version number has changed. @preserved-rebuild will hopefully give some assistance in that case anyway (if you're using a version of portage that has it).
