Re: [gentoo-dev] when to use a function and an implementation use flag.

["Petteri Räty" <betelgeuse@gentoo.org>]

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On 03/24/2010 08:30 PM, Peter Hjalmarsson wrote:

> For qemu-kvm the problem is that there is only one implementation (i.e.
> gnutls), and if I want to have ssl support I have to enable gnutls for
> this package.

In this case the ebuild should have only ssl use flag.

> When I wrote a bug about this I got a rather short reply from maintainer
> about pointing me to the policy about this.

Where did he point you to?

> So I have a question:
> Is there no policy about this?

The policy is that USE="ssl" controls whether to enable ssl support in
general. Then the specific use flags like gnutls and openssl control
what implementation to use if the package supports multiple.

USE="ssl" --> should always give you ssl support

> If there is could someone please point me towards it and also it in that
> case may be time to update the gentoo development guide.
> 
> [1]
> http://devmanual.gentoo.org/general-concepts/use-flags/index.html#conflicting-use-flags
> 

If you read the example code you see what I said is already done in the
example code.

Opened a bug for qemu-kvm:
http://bugs.gentoo.org/show_bug.cgi?id=311627

Opened a bug for repoman:
http://bugs.gentoo.org/show_bug.cgi?id=311629

Regards,
Petteri



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