On 02 Jun 2015 23:07, Michael Palimaka wrote:
> On 02/06/15 21:38, Mike Frysinger wrote:
> > On 02 Jun 2015 20:47, Michael Palimaka wrote:
> >> On 02/06/15 17:04, Michał Górny wrote:
> >>> Dnia 2015-06-02, o godz. 03:58:35
> >>> "Michael Sterrett (mr_bones_)" <mr_bon...@gentoo.org> napisał(a):
> >>>> -DEPEND="readline? ( sys-libs/readline )
> >>>> +DEPEND="readline? ( sys-libs/readline:0 )
> >>>
> >>> This should be actually := (or :0=) for both deps since gnugo links to
> >>> them. This also applies to your remaining 'warning silencing' commits.
> >>
> >> Why? Blindly adding the subslot dep is a bad idea.
> > 
> > in this particular case, the subslot usage is what we want since we're 
> > compiling+linking against it.  using readline:0 vs readline is still an 
> > improvement though.
> > 
> > we also want a subslot on ncurses since we compile+link against it.
> > 
> > i think it's pretty uncommon to use readline in a package and not want a 
> > subslot.  your package would have to be doing something uncommon like
> > dlopening it since the only thing readline provides is a library ...
> 
> Neither readline nor ncurses define an explicit subslot, so I don't know
> what their future meaning might be.

their meaning would be the reasonable one -- to track the SONAME.  while it 
hasn't been deployed yet (due to those packages being on EAPI=4), i don't know 
what other value you'd expect it to be.  they've both broken their SONAMEs in 
the past.  readline in particular has been every major version (4.x, 5.x, 6.x).
-mike

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