On Mon, Mar 24, 2014 at 15:10:25 -0300, Lisandro Damián Nicanor Pérez Meyer wrote:
> Hi! I'm trying to find a solution for the FTBFS of qantenna on arm* [0][1] > that fits the best to everyone. This issue seems to be very similar to a > older > thread "including both GL/gl.h and cogl/cogl.h fails on armel and armhf" [2], > but I failed to see how that was resolved. > As far as I can tell, http://patch-tracker.debian.org/patch/series/view/toonloop/2.2.0-1/0004-fix_arm.patch should have solved it. > The FTBFSs are due to conflicting declarations for GLdouble, GLsizeiptr and > GLintptr. > > Basically the problem might boild down to the fact that Qt5 is built using > es2 > instead of the "desktop" opengl which, to the best of my knowledge, it's > standard OpenGL 2.0. > > These are the possible solutions I think could be taken: > > a) Switch Qt5 to use "desktop" OpenGL on arm*. I have tested this on > harris.d.o and works OK. As a pro, it means that other apps will not have > porting issues like this. As a con, it might mean that all the OpenGL stuff > will be done by software though, am I correct? > Sounds about right. > b) (supossing it's possible) provide es2 versions of mesa-common-dev, libglu1- > mesa-dev et al. and build against that on arm* > > d) (also supossing it's possible) do not consider the FTBFS not RC (or allow > it's transition even if it's RC) until a better fix could be done. > > Please note that I did not include "porting the app" because, as I understand > it, there is no es2-enabled GLU available, or at least on Debian. > > I'm inclined for option a, but maybe you can provide alternative solutions. > As > a fallback (if it's possible at all) I would take option d, but that might be > needed for other apps in the no-so-distant future, when we will start to see > massive porting from Qt4 to Qt5. > I'd very much like to avoid b. The GLU spec (http://www.opengl.org/registry/doc/glu1.3.pdf) seems very much tied to old OpenGL. I didn't think GLU was still a thing used by any modern toolkit/app, though, so I'm surprised "you get to choose between GLU and Qt5" is a problem. Cheers, Julien
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