Re: [gentoo-user] Best way to rebuild all system

[Chris van der Pennen]

On Wed, 2003-02-05 at 09:38, Bruno Lustosa wrote:

Hello, folks. I just found out about some better optimization options
for /etc/make.conf, but I have already configured most of the system.
What's the best way to rebuild all packages?
I tried the manpage and the --help for emerge, but couldn't find an
option for doing so. There's an action named 'regen', but it isn't
mentioned anywhere in the manpage or in the help screen.
If I do, for example, 'emerge -p vim', it shows me an 'R' flag for it,
and if I take out the -p, it grabs the source I already have, configures
and then starts building (with new make.conf options).
What would be the quick way to do it to the whole system?

From man emerge:

--emptytree (-e)
              Virtually tweaks the tree of installed packages to only  contain
              glibc; this is great to use together with --pretend. This allows
              developers to get a complete overview of the complete dependency
              tree  of  a package, and it enables complete trees to be rebuilt
              using the latest libraries.

Chris

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