> -----Original Message----- > From: development-bounces+kai.koehne=digia....@qt-project.org > [mailto:development-bounces+kai.koehne=digia....@qt-project.org] On > Behalf Of Samuel Rødal > Sent: Monday, October 22, 2012 2:10 PM > To: development@qt-project.org > Subject: Re: [Development] xcb-icccm dependency in Qt 5/libxcb > > On 10/22/2012 01:53 PM, Koehne Kai wrote: > > Hi, > > > > In Qt 5 we're relying on libxcb instead of the aging xlib. One drawback is > that it limits the portability of Qt binaries on Linux (AFAIK xcb isn't part > of > any LSB). But it turns out the real dealbreaker when trying to have a > somewhat portable Qt binary on Linux is libxcb-icccu: E.g. I can't run a Qt > compiled on Ubuntu 11.10 on my OpenSUSE 12.1 because of this > dependency, and the LSB appchecker even says it's not available on any > platform known to him. > > s/libxcb-icccu/libxcb-icccm ?
Hu, sorry, that happens if you hurry up sending a mail ... I of course meant libxcb-icccm. > > Now I don't have a real understanding of icu, and couldn't really figure out > what libxcb-icccm does. I learnt it's an acronym for "Inter-Client > Communication Convention" , but how crucial is it? Would it be feasible to > make icccm optional for the icu platform plugin (preferably by configure > switch)? > > What does ICU have to do with icccm? Nothing, yet another "typo" :( We have also an ICU dependency, but that has been discussed before and AFAIK you've to just ship ICU with Qt. > In any case, it's probably possible to make the xcb plugin have an optional > dependency on libxcb-icccm, but it might leave the xcb plugin a lot less > usable on desktop platforms. > > I guess there are two other options: > > 1) include libxcb-icccm in qtbase/src/3rdparty, build it into the xcb plugin? > 2) make the xcb plugin not use the convenience that libxcb-icccm provides, > instead using lower level xcb calls to achieve the same thing > > Not sure which would be preferable. The latter seems cleaner but would > have to duplicate some of the effort that went into libxcb-icccm. It's really > annoying that libxcb-icccm hasn't kept a stable ABI between releases. Maybe I'm wrong, but I think the issue is that Ubuntu 11.10 (which we use as reference platform, among Ubuntu 12.04) just features a lib-icccm which is 'too new' (0.4), while my OpenSUSE 11.10 only has 0.1. So they might be binary compatible, or not, I don't know... Anyway, the lsb report makes me thing that it's not only OpenSUSE that will have problems. Regards Kai > -- > Samuel > _______________________________________________ > Development mailing list > Development@qt-project.org > http://lists.qt-project.org/mailman/listinfo/development _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
