On Tue, 2012-04-24 at 17:33 +0100, Richard Purdie wrote: > On Tue, 2012-04-24 at 11:48 +0100, Phil Blundell wrote: > > On Tue, 2012-04-24 at 11:45 +0100, Richard Purdie wrote: > > > On Tue, 2012-04-24 at 10:42 +0100, Phil Blundell wrote: > > > > Yes, that is the intended behaviour. This is necessary to support > > > > dynamically installed language packs. > > > > > > What uses this out of interest? > > > > I'm not entirely sure to be honest. We used to use it quite heavily in > > Familiar but I have no idea whether Angstrom does the same. The systems > > I'm working on nowadays don't tend to require language packs so I > > haven't personally used that mechanism for a while. > > How did the system use this? I can imagine querying the list of > installed packages and then attempting installing xx-locale as a resuilt > but I'm not sure how this other provider helps? > > As far as I know, opkg doesn't directly support anything like this?
Ipkg did have (and I assume opkg still has, though I haven't checked) a "greedy depends" mechanism which works exactly like this. If it sees a line like: Recommends: xx-locale* then it will install all the packages which Provide: xx-locale and whose dependencies are already satisfied. The way we used this in Familiar was that the .ipk containing message catalogs for language CC and package PN would Provide: PN-locale, CC-translation, and would Depend: on PN and locale-base-CC. PN itself would Recommend: PN-locale*, and there was a language-pack-CC metapackage which would Depend: on locale-base-cc and Recommend: CC-translation*. So... - if you did "ipkg install language-pack-de", it would install locale-base-de (via the hard Depends) and then install PN-locale-de for each PN that was already installed (via the Recommends). - if you did "ipkg install frozen-bubble", it would install the program itself (obviously) and then install the message catalogs for all the locale-bases that were already installed. Likewise, if you subsequently removed locale-base-de or frozen-bubble then the dependency chain would cause all the corresponding message catalogs to get ripped out as well. Obviously this was about a decade ago so my recollection might not be 100% reliable. But I'm fairly sure that the basic gist of the above is correct. p. _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
