List Archive: gentoo-dev
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Pacho Ramos wrote:
> Also hit this problem today while trying to bump bluez and noticed we
> are using elog messages to tell people to manually install
> net-dialup/ppp if they want ppp working with bluez.
> I am unsure about the disadvantages of simply using, for example,
> "ppp" USE flag to do that.
I guess the point is that it is not really a dependency. bluez works
fine without ppp, it does not need to be rebuilt to use ppp later,
and ppp is only needed when user wants to use both together.
I think it fits to emerge them separately. It seems reasonable not to
USE for other packages which are merely possible to combine, but
which don't make for a strict dependency.
> 1. We rely in people reading the message to get package working ok.
I dunno if a USE flag is much better? Both require the user to inform
herself in the same way ("when do I need USE=ppp for bluez" vs. "when
do I need to emerge ppp") and take action in the same context (set
USE=ppp for bluez vs. emerge ppp after bluez)..
> 2. If user emerges ppp, it will be recorded in world file and, then, if
> in the future he removes bluez, emerge --depclean want clean no longer
> needed ppp and then, people end up with a lot of packages they needed
> to manually emerge some year but that they problem no longer need at
Disk is pretty cheap. If the package is never being used and the user
doesn't care to remove it then the package doesn't do any harm IMO,
and as mentioned I think it's difficult for the package manager to
know what the user has installed on the system but no longer needs..