On Wed, 12 Aug 2015 20:00:42 +0200
Ulrich Mueller <u...@gentoo.org> wrote:
> >>>>> On Wed, 12 Aug 2015, Ciaran McCreesh wrote:
>
> >> pkg_pretend() {
> >> if use qt4; then
> >> required_use -qt5
> >> else
> >> required_use qt5
> >> fi
> >> }
>
> > And how would the PM understand that -qt5 is conditional upon qt4?
> > Such knowledge is required if it's supposed to auto-resolve stuff...
>
> Right, the above was too simple (and wrong). It should have been:
>
> pkg_pretend() {
> use qt4 && use qt5 && required_use -qt5
> use qt4 || use qt5 || required_use qt4
> }
what is the difference ?
pkg_pretend still needs to be executed to guess what useflags are
enabled or not, which information is needed before dependency
calculation
or are we talking about moving pkg_pretend into dependency calculation?
