[gentoo-dev] [patch] preconfig to allow user configuration before compilation

[Kristian Benoit]

This patch provide a new feature (preconfig).

With this feature on, emerging an ebuild with an optional src_preconfig
function will unpack, preconfig, compile, ... on emerge. But with
preconfig off, it would do as usual and bypass the src_preconfig.
src_preconfig is for interactive configuration at before src_compile
like packages where you must "make menuconfig".

A couple things could still be done:

- emerge could unpack every packages that define a src_preconfig,
preconfig those packages then follow up with compile on those packages
and normal emerge on other packages.

- As some people dont want interactive configuration or as much hidden
as possible, I thought of removing preconfig if set in make.conf but
only keep it if set in environment variable.

Hope it can help :)

I'm also sending a patch to busybox, try it ! :)

Kristian