On Sat, 27 Jan 2024 at 07:53, Richard Duivenvoorde via QGIS-Developer
<qgis-developer@lists.osgeo.org> wrote:
>
> Ok, installed qwt by downloading deb file from testing...
>
> configure: ok
> generate: ok
>
> compiling: stopped at
> build/python/gui/gui.sip: line 11: column 9: 'QtCore/QtCoremod.sip' could not 
> be found
> seems to be able to fix this using the fix from Thomas from
> https://github.com/qgis/QGIS/issues/54184#issuecomment-1795204001
> (NOTE: had to do this for my own build in Trixie too!)
>
> compile again: stop at:
>
> [423/2971] Building CXX object 
> src/core/CMakeFiles/qgis_core.dir/qgsvariantutils.cpp.o
> FAILED: src/core/CMakeFiles/qgis_core.dir/qgsvariantutils.cpp.o
> ...
> home/richard/git/qgisqt6/src/core/qgsvariantutils.cpp: In static member 
> function ‘static QVariant::Type 
> QgsVariantUtils::metaTypeToVariantType(QMetaType::Type)’:
> /home/richard/git/qgisqt6/src/core/qgsvariantutils.cpp:489:21: error: 
> ‘Float16’ is not a member of ‘QMetaType’
>    489 |     case QMetaType::Float16:
>        |                     ^~~~~~~
> [440/2971] Building CXX object 
> src/core/CMakeFiles/qgis_core.dir/qgsvectorfilewriter.cpp.o
>
> Anybody a hint?

Looks like you'll need https://github.com/qgis/QGIS/pull/56033 too.
Try removing that line for now.

Nyall

>
> Regards,
>
> Richard Duivenvoorde
>
>
> On 1/26/24 10:05, Richard Duivenvoorde via QGIS-Developer wrote:
> > Whow! Cool!
> >
> > Thanks to all peeps/sponsors making this happen!
> >
> > Eager to try to build. Is
> > https://lists.osgeo.org/pipermail/qgis-developer/2022-August/065012.html
> > more or less the status of dependencies you also have to get/build yourself 
> > on Debian?
> >
> > Ok searched and tried to configure.
> >
> > Following seem to be OK:
> >
> > - qca  (I see libqca-qt6-dev/testing 2.3.8-1 in Debian testing)
> > - qtkeychain  (I see qtkeychain-qt6-dev/testing 0.14.2-1 in Debian testing)
> > - QScintilla  (I see libqscintilla2-qt6-dev/testing,now 2.14.1+dfsg-1 in 
> > Debian testing)
> >
> > - qwt  (cannot find qt6 mention in Debian testing)
> >
> > So: need to compile QWT myself?
> > Like mentioned in dev list mail from 2022?
> >
> >
> > For debianista's willing to try:
> > - on Debian testing, on which I also compile QGIS-qt5, I (via trial and 
> > error) installed:
> >
> > sudo apt install libqca-qt6-dev qtkeychain-qt6-dev libqscintilla2-qt6-dev 
> > qt6-serialport-dev qt6-svg-dev qt6-positioning-dev libqt6core5compat6 
> > qt6-5compat-dev python3-pyqt6 python3-pyqt6.qsci pyqt6-dev-tools 
> > python3-pyqt6.qtmultimedia qml6-module-qtmultimedia qt6-multimedia-dev 
> > qt6-tools-dev
> >
> > mkdir build;cd build;ccmake -GNinja -DBUILD_TESTING=FALSE 
> > -DENABLE_TESTS=OFF -DWITH_SERVER=FALSE -DWITH_3D=FALSE 
> > -DCMAKE_INSTALL_PREFIX=~/bin/qgis_/qt6/debug -DWITH_QWTPOLAR=OFF 
> > -DCMAKE_BUILD_TYPE=Debug -DWITH_GRASS=FALSE -DBUILD_WITH_QT6=TRUE 
> > -DWITH_OAUTH2_PLUGIN=FALSE -DWITH_WITH_SERVER_PLUGINS=OFF 
> > -DWITH_STAGED_PLUGINS=OFF -DWITH_PDAL=OFF -DWITH_QTWEBKIT=OFF ..
> >
> > Then configuring goes without errors.
> > But on generating, I get
> >
> >   CMake Error: The following variables are used in this project, but they 
> > are set to NOTFOUND.
> >   Please set them or make sure they are set and tested correctly in the 
> > CMake files:
> >   QWT_LIBRARY
> >       linked by target "qgis_gui" in directory 
> > /home/richard/git/qgisqt6/src/gui
> >       linked by target "qgis_app" in directory 
> > /home/richard/git/qgisqt6/src/app
> >   Generating done (0.5s)
> >
> > So probably need to get QWT compiled for qt6?
> > Found https://packages.debian.org/experimental/libqwt-qt6-6.2 but dare not 
> > to pull that into my testing machine?
> >
> >
> > Anyway, Thanks all!
> >
> > Regards,
> >
> > Richard Duivenvoorde
> >
> >
> > For debianista's willing to try:
> > - on Debian testing, on which I also compile QGIS-qt5, I (via trial and 
> > error) installed:
> >
> > sudo apt install libqca-qt6-dev qtkeychain-qt6-dev libqscintilla2-qt6-dev 
> > qt6-serialport-dev qt6-svg-dev qt6-positioning-dev libqt6core5compat6 
> > qt6-5compat-dev python3-pyqt6 python3-pyqt6.qsci pyqt6-dev-tools 
> > python3-pyqt6.qtmultimedia qml6-module-qtmultimedia qt6-multimedia-dev 
> > Qt6UiToolsConfig.cmake
> >
> > mkdir build;cd build;ccmake -GNinja -DBUILD_TESTING=FALSE 
> > -DENABLE_TESTS=OFF -DWITH_SERVER=FALSE -DWITH_3D=FALSE 
> > -DCMAKE_INSTALL_PREFIX=~/bin/qgis_/qt6/debug -DWITH_QWTPOLAR=OFF 
> > -DCMAKE_BUILD_TYPE=Debug -DWITH_GRASS=FALSE -DBUILD_WITH_QT6=TRUE 
> > -DWITH_OAUTH2_PLUGIN=FALSE -DWITH_WITH_SERVER_PLUGINS=OFF 
> > -DWITH_STAGED_PLUGINS=OFF -DWITH_PDAL=OFF -DWITH_QTWEBKIT=OFF ..
> >
> >
> >
> > On 1/25/24 22:58, Nyall Dawson via QGIS-Developer wrote:
> >> Hi list,
> >>
> >> With some excellent work recently completed by Julien, we're now at a 
> >> stage where there's no *major* roadblocks preventing plugins from 
> >> functioning under the Qt6 builds!
> >>
> >> In fact, the first plugin has already been ported to be compatible with 
> >> these (First Aid Plugin) -- see 
> >> https://github.com/wonder-sk/qgis-first-aid-plugin/commits/master/ 
> >> <https://github.com/wonder-sk/qgis-first-aid-plugin/commits/master/> .
> >>
> >> I think we're now at a stage where wider testing of the Qt6 builds and 
> >> feedback via bug reports are valuable. A couple of notes:
> >>
> >> - We're up to roughly 2/3rd of the existing Python tests passing on Qt 6 
> >> builds. That's obviously not everything, so we aren't finished with this 
> >> work yet 😁
> >>
> >> - There's a script available in the repo for automatically upgrading QGIS 
> >> plugins/scripts to Qt 6 compatibility WITHOUT BREAKING compatibility with 
> >> older releases/qt5 based releases. It's here: 
> >> https://github.com/qgis/QGIS/blob/master/scripts/pyqt5_to_pyqt6/pyqt5_to_pyqt6.py
> >>  
> >> <https://github.com/qgis/QGIS/blob/master/scripts/pyqt5_to_pyqt6/pyqt5_to_pyqt6.py>
> >>
> >> - After running the script, you'll also need to add "supportsQt6=yes" to 
> >> your plugins metadata configuration. Otherwise the Qt6 builds will just 
> >> ignore your plugin and will refuse to load it. See eg 
> >> https://github.com/wonder-sk/qgis-first-aid-plugin/commit/3687be7d9e026c59c9b775caaf5ee18cf8639886
> >>  
> >> <https://github.com/wonder-sk/qgis-first-aid-plugin/commit/3687be7d9e026c59c9b775caaf5ee18cf8639886>
> >>
> >> - You'll need to compile your own Qt 6 build. There's no nightlies or any 
> >> prepackaged versions available.
> >>
> >> - There are still some known issues with enum handling, but please open 
> >> bug reports when you encounter these!
> >>
> >> - The plugin manager is currently broken in the Qt6 builds. Use a Qt5 
> >> build to enable plugins
> >> 🤣
> >>
> >> Again, to reiterate, there's NO plans for moving to QGIS 4.0 on the 
> >> horizon. The plan is to allow plugins to add Qt6 support without breaking 
> >> any compatibility with Qt5/older releases, so that the effort required by 
> >> plugin authors is extremely minimal. And with any luck, the 
> >> pyqt5_to_pyqt6.py script will do 99% of the work for you. Qt 6 builds of 
> >> QGIS 3.x will become available at some stage in a "preview release" 
> >> capacity, and likely some platforms will move to Qt6 only releases when 
> >> necessary for that platform (eg MacOS, wayland only linux systems). Read 
> >> more about the plan at 
> >> https://github.com/qgis/QGIS-Enhancement-Proposals/issues/198 
> >> <https://github.com/qgis/QGIS-Enhancement-Proposals/issues/198>
> >>
> >> This work has ONLY been possible thanks to funding from qgis.org 
> >> <http://qgis.org>, ie it's possible only because of the users and 
> >> organisations sponsoring QGIS!
> >>
> >> Nyall
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> QGIS-Developer mailing list
> >> QGIS-Developer@lists.osgeo.org
> >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> >
> > _______________________________________________
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