Re: [gentoo-dev] add built_with_use_die() to eutils.eclass ?

[Marius Mauch <genone@gentoo.org>]

On Mon, 23 Apr 2007 23:45:48 +0200
dju` <dju@gentoo.org> wrote:

>         eerror "Your ${package} package has been built without"
>         eerror "${func} support, please enable the '${use_flag}' USE flag and"
>         eerror "re-emerge ${package}."
>         elog "You can enable this USE flag either globally in /etc/make.conf,"
>         elog "or just for specific packages in /etc/portage/package.use."
>         die "${package} missing ${func} support"

A little detail about elog: You should not use different elog functions
(eerror, elog, ewarn, ...) within the same message as they may appear
out of order in the final log (e.g. the elog lines might appear before
the eerror lines). This is because messages of the same loglevel and in
the same phase are grouped together. It's an implementation detail that
might be changed in future versions, but for now you'll have to live
with it.

Also I don't see much use in explaining how to enable a use flag inside
ebuilds, at most there should be a pointer to the real documentation
IMO.

Marius
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