QGIS incompatible with QWT 6.0.0

[marisn]

QGIS r15378

Gentoo ~AMD64

equery l '*qwt*'
 * Searching for *qwt* ...
[IP-] [  ] dev-python/pyqwt-5.2.0:5
[IP-] [  ] x11-libs/qwt-6.0.0_rc5:5

[ 36%] Building CXX object src/app/CMakeFiles/qgis.dir/qgisapp.cpp.o                                          
In file included from /home/maris/soft/qgis_trunk/src/app/gps/qgsgpsinformationwidget.h:27:0,                 
                 from /home/maris/soft/qgis_trunk/src/app/qgisapp.cpp:121:
/home/maris/soft/qgis_trunk/src/app/gps/qwtpolar/qwt_polar_plot.h:14:33: fatal error: qwt_double_interval.h: No such file or directory
compilation terminated.

[volter]

I'll try to build with my external Qwtpolar in the evening.

I think you should report that to Qwtpolar upstream though.

[marisn]

Replying to volter:

I'll try to build with my external Qwtpolar in the evening.

I think you should report that to Qwtpolar upstream though.

This is the reason why You should not clone code. Qwtpolar is just fine, it's QGIS bundled clone out of sync.

Just fast googling reveals this file without any references to "qwt_double_interval.h": ​http://qwtpolar.svn.sourceforge.net/viewvc/qwtpolar/trunk/qwtpolar/src/qwt_polar_plot.h?revision=103&view=markup

[volter]

Now we only need to find packagers for Qwtpolar for all distris besides Fedora, as well as include it in the Windows installer. :)

It is prepared inside QGIS since r15215.

[volter]

Also the last released upstream version of Qwtpolar does not build with Qwt 6.0.

PyQwt as well won't build with Qwt 6.0.

Therefore I think this shouldn't be seen as a QGIS bug.

[marisn]

Replying to volter:

Also the last released upstream version of Qwtpolar does not build with Qwt 6.0.

PyQwt as well won't build with Qwt 6.0.

Therefore I think this shouldn't be seen as a QGIS bug.

Force with You is strong, but those are not the droids You are looking for.

• Qwt 6.0.0 is starting to appear on user machines;
• For some time there will be systems with Qwt 6.0 and 5.x around (depending on distro packaging policy);
• If 6.0 is unsupported, QGIS configure system (cmake) should detect incompatible version and refuse to do anything.

[volter]

​http://sourceforge.net/support/tracker.php?aid=3195924

See comment there!