Gentoo Archives: gentoo-dev

From: "Andreas K. Huettel" <dilfridge@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] Opportunities to use slot operators
Date: Sun, 14 Apr 2013 17:11:29
In Reply to: [gentoo-dev] Opportunities to use slot operators by Rich Freeman
1 Am Sonntag, 14. April 2013, 15:09:13 schrieb Rich Freeman:
2 > For whoever is interested I tossed together a script to identify
3 > packages that would immediately benefit from slot operator
4 > dependencies but which are not doing so.
5 >
6 > The list can be found at:
7 >
8 >
10 Please be careful with this... and think before you add the subslot
11 dependency. Whether it makes sense depends a lot on the handling and on the
12 maintainer of the package that you depend on.
14 Examples (yes I learned...):
16 1) Perl stuff
17 I *suspect* all KDE ebuilds depend on perl by default because the packages
18 have to be able to run perl scripts. However, unless they install perl modules
19 or link to libperl, there is absolutely no need to add a subslot dependency.
21 2) Poppler
22 Poppler provides several libraries, and I set the subslot equal the major
23 soversion of the one that is varied most frequently (libpoppler).
24 If your application links to that, you should use a subslot dep.
25 If your application links to another library, you can use a subslot dep, but
26 it will lead to some unneeded rebuilds.
27 If your application only uses the commandline tools installed by app-
28 text/poppler[utils], then there's no need to rebuild.
30 Actually I would like to recommend that we document the reason and recommended
31 handling for the subslot somewhere for each package (unless it's trivial). For
32 example, we could place something like the above text into dev-lang/perl or
33 app-text/poppler metadata.xml.
35 --
37 Andreas K. Huettel
38 Gentoo Linux developer
39 dilfridge@g.o


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