Re: [gentoo-user] Tracing use flags - how to?

[Alan McKinnon <alan.mckinnon@gmail.com>]

Apparently, though unproven, at 09:18 on Thursday 28 October 2010, Helmut 
Jarausch did opine thusly:

> Hi,
> 
> this might well we a FAQ but I couldn't find it.
> 
> In the process of upgrading to xorg-server-1.8.2 I'd like to remove
> the 'hal' use flag.
> I have removed it in /etc/make.conf and added 'udev' instead.

That will remove it globally from the entire system, which might not be what 
you want. IIRC k3b needs hal for instance to work correctly.

> The xorg-server definitely doesn't have this use flag set in
> /etc/portage/package.use
> 
> Still, emerge -vp x11-base/xorg-server shows that it is going to use
> the 'hal' but not the 'udev' flag.
> 
> How to find out where this comes from.

I usually read the ebuilds and grep directly through files to find this kind 
of stuff :-) I find it easier than remembering commands.

The xorg-server ebuild says:
IUSE_SERVERS="dmx kdrive xorg"
IUSE="${IUSE_SERVERS} doc hal ipv6 minimal nptl tslib +udev"

So it uses all those flags, and "udev" is on by default unless you explicitly 
say otherwise somewhere.


> I haven't found anything in 'use.mask' in my profile
> default/linux/amd64/10.0/desktop

Post the USE section from emerge --info, the output from 
emerge -vp x11-base/xorg-server.
the output from 
grep -r udev /etc/portage/*
grep -r hal /etc/portage/*

and let's take it from there.

Finding stuff in profiles is tricky, you have to search upwards through the 
directories, not downwards.




-- 
alan dot mckinnon at gmail dot com