Oh, by the way, we'll need to adapt Find{Qca,QWT,etc}.cmake to behave
nicely on systems where both qt5 and qt6 libraries are installed. Atm it'll
randomly pick one or the other.We can make use of BUILD_WITH_QT6 there. On Sat, Aug 20, 2022, 15:22 Mathieu Pellerin <nirvn.a...@gmail.com> wrote: > Richard, > > FYI, I've been able to compile QGIS against Qt6 (6.2.4) on Ubuntu 22.04. > Few notes: > - We're lucky, Ubuntu 22.04 has a Qt6 keychain package, you should use > this one, that reduces the nb of libs to compile to 3 > - As Matthias suggested, I'd install the libraries > - The QCA_INCLUDE_DIR has to point to the QtCrypto directory (e.g. on my > machine, I set the installed include path to > /usr/include/x86_64-linux-gnu/qt6/Qca-qt6/QtCrypto/ -- it might work from > the directory you built qca within, but I suspect the path would have to be > something like /home/richard/git/qca/qca-master/include/QtCrypto/) > > On the bindings front, while Ubuntu 22.04 doesn't have a pyqt6 package, > upcoming Ubuntu 22.10 will ship one ( > https://packages.ubuntu.com/kinetic/pyqt6-dev). With a bit of chance, > Ubuntu will have updated to 6.3.X come October. > > Nyall, you rock BTW, it's pretty cool to see QGIS running against Qt6 > locally. > > Mathieu > > On Thu, Aug 18, 2022 at 4:43 PM Richard Duivenvoorde via QGIS-Developer < > qgis-developer@lists.osgeo.org> wrote: > >> Cool! Thanks Nyall! >> >> Off course this is a challenge for Debianista's :-) >> >> Just tried on Debian testing, actually your 4 zip's/dependecies compiling >> went very well. >> (did not INSTALL anything, just compiled) >> >> But then I get stuck on QGIS itself (looks like it is trying to compile >> the ossl plugin again, or qca is not finding the plugin so?) >> (note: I disabled some AUTH stuff because... something errored, and I >> thought to try without) >> >> # build QGIS qt6 (had build all other stuff in /home/richard/git/qca) >> mkdir build >> cd build >> ccmake -DBUILD_WITH_QT6=ON -DWITH_BINDINGS=OFF \ >> -DQCA_INCLUDE_DIR=/home/richard/git/qca/qca-master \ >> -DQCA_LIBRARY=/home/richard/git/qca/qca-master/lib/libqca-qt6.so.2.3.4 \ >> -DQSCINTILLA_INCLUDE_DIR=/home/richard/git/qca/QScintilla_src-2.13.3/src/ >> \ >> -DQSCINTILLA_LIBRARY=/home/richard/git/qca/QScintilla_src-2.13.3/src/libqscintilla2_qt6.so.15.1.1 >> \ >> -DQTKEYCHAIN_INCLUDE_DIR=/home/richard/git/qca/qtkeychain-master \ >> -DQTKEYCHAIN_LIBRARY=/home/richard/git/qca/qtkeychain-master/libqt6keychain.so.0.13.99 >> \ >> -DQWT_INCLUDE_DIR=/home/richard/git/qca/qwt-6.2.0/src \ >> -DQWT_LIBRARY=/home/richard/git/qca/qwt-6.2.0/lib/libqwt.so.6.2.0 \ >> -DWITH_OAUTH2_PLUGIN=OFF \ >> -DWITH_AUTH=OFF \ >> .. >> >> QCA OpenSSL plugin C++ check compile output: >> Change Dir: /home/richard/git/qgisqt6/build/CMakeFiles/CMakeTmp >> >> Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_c5530/fast && >> /usr/bin/gmake -f CMakeFiles/cmTC_c5530.dir/build.make >> CMakeFiles/cmTC_c5530.dir/build >> gmake[1]: Entering directory >> '/home/richard/git/qgisqt6/build/CMakeFiles/CMakeTmp' >> Building CXX object CMakeFiles/cmTC_c5530.dir/qcaossl.cpp.o >> /usr/bin/c++ -I/usr/include/x86_64-linux-gnu/qt5 >> -I/usr/include/x86_64-linux-gnu/qt5/QtCore >> -I/usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ >> -I/home/richard/git/qca/qca-master -fPIC -std=gnu++11 -o >> CMakeFiles/cmTC_c5530.dir/qcaossl.cpp.o >> -c /home/richard/git/qgisqt6/build/CMakeFiles/CMakeTmp/qcaossl.cpp >> /home/richard/git/qgisqt6/build/CMakeFiles/CMakeTmp/qcaossl.cpp:2:16: >> fatal error: QtCrypto: No such file or directory >> 2 | #include <QtCrypto> >> | ^~~~~~~~~~ >> compilation terminated. >> gmake[1]: *** [CMakeFiles/cmTC_c5530.dir/build.make:78: >> CMakeFiles/cmTC_c5530.dir/qcaossl.cpp.o] Error 1 >> gmake[1]: Leaving directory >> '/home/richard/git/qgisqt6/build/CMakeFiles/CMakeTmp' >> gmake: *** [Makefile:127: cmTC_c5530/fast] Error 2 >> >> CMake Error at cmake/QCAMacros.cmake:76 (message): >> QCA OpenSSL plugin not found (run-time/unit-test dependency) >> Call Stack (most recent call first): >> CMakeLists.txt:526 (FIND_QCAOSSL_PLUGIN_CPP) >> >> Configuring incomplete, errors occurred! >> >> Anyone a hint? >> >> Regards, >> >> Richard Duivenvoorde >> >> >> If others want to try, some more notes: >> >> # log on Debian Testing dd 18th aug 2022 >> >> # get all zips from Nyalls qt6 mail: >> >> # qca >> unzip qca-master.zip >> cd qca-master/ >> # I did >> ccmake . >> # and checked BUILD_WITH_QT6=ON >> # and (after issues with the ossl plugin) set WITH_ossl_PLUGIN=yes >> make >> >> # qtkeychain >> # unzip and go into dir: >> # needed to do: >> unzip qtkeychain-master.zip >> cd qtkeychain-master/ >> sudo apt install libsecret-1-dev >> cmake -DBUILD_WITH_QT6=ON . >> make >> >> # qwt-6.2 >> # unzip >> cd qwt-6.2.0 >> qmake6 -DWITH_PLUGIN=yes qwt.pro >> make >> >> # QScintilla_src-2.13.3 >> cd QScintilla_src-2.13.3 >> cd src >> qmake6 qscintilla.pro >> make >> >> >> On 8/18/22 06:46, Nyall Dawson via QGIS-Developer wrote: >> > Hi list, >> > >> > There's been a couple of questions regarding this lately, so I'd like >> > to send through an update on the current status. While I was rather >> > pessimistic when replying to these questions, I'm happy to report that >> > the port to Qt 6 is actually progressing MUCH faster than I'd >> > anticipated! >> > >> > Thanks to the QGIS.org grant, I've spent the last couple of weeks >> > working on this and we're now at a stage where QGIS builds and is >> > (mostly) usable on Qt 6!! >> > >> > Right now this is where we're stand: >> > >> > - The core, gui and app libraries all build and run under Qt 6. >> > - The 3d library builds and the tests all pass, but I just get a hang >> > when I try to actually use a 3d view in the app >> > - There's an open PR adding Qt 6 support for server ( >> > https://github.com/qgis/QGIS/pull/49823 ) >> > - Python is not supported, there's some blockers there to resolve first* >> > - Almost all the c++ tests are passing, and there's a bunch of open >> > PRs which resolve some issues to get a few more passing >> > - The CI infrastructure now includes the c++ tests for QGIS core, gui, >> > app and 3d under Qt 6 (with server tests enabled in the PR waiting >> > review). >> > >> > Unfortunately without Python support we can't run the bulk of the test >> > suite yet, so the current stability of the Qt 6 builds is a bit of an >> > unknown. At least in my tests things *seem* to work well, in that I >> > can load projects, navigate maps, work with print layouts and other >> > common tasks. I certainly wouldn't recommend it for any kind of >> > professional use, but it's at a stage where I'd welcome end-user >> > testing and bug reports! >> > >> > Getting a build is somewhat tricky at the moment. I've been using >> > Fedora 36 for this. You can get the required dependencies from this >> > command: >> https://github.com/qgis/QGIS/blob/master/.docker/qgis3-qt6-build-deps.dockerfile#L6 >> > >> > You also need to compile by hand: >> > - qca, from https://github.com/KDE/qca/archive/refs/heads/master.zip >> > (make sure to set the -DQT6=ON cmake flag) >> > - qtkeychain, from >> > >> https://github.com/frankosterfeld/qtkeychain/archive/refs/heads/master.zip >> > . Set the -DBUILD_WITH_QT6=ON cmake flag >> > - qwt-6.2 from >> https://sourceforge.net/projects/qwt/files/qwt/6.2.0/qwt-6.2.0.zip/download >> > . This is an ugly one to compile -- you need to use qmake6 and hack >> > around some random build failures >> > - QScintilla 2.13.3 from >> > >> https://www.riverbankcomputing.com/static/Downloads/QScintilla/2.13.3/QScintilla_src-2.13.3.zip >> > . Again, use qmake6 to compile to get the qt 6 libraries. >> > >> > (there's potentially some useful tips on compiling these in the docker >> > file used for the Github workflow at >> > >> https://github.com/qgis/QGIS/blob/master/.docker/qgis3-qt6-build-deps.dockerfile >> > ) >> > >> > When you're building QGIS, make sure to set the cmake options >> > -DBUILD_WITH_QT6=ON -DWITH_BINDINGS=OFF . Likely you also need to set >> > QCA_INCLUDE_DIR, QCA_LIBRARY, QSCINTILLA_INCLUDE_DIR, >> > QSCINTILLA_LIBRARY, QTKEYCHAIN_INCLUDE_DIR, QTKEYCHAIN_LIBRARY, >> > QWT_INCLUDE_DIR and QWT_LIBRARY to point to the correct Qt 6 versions >> > of these libraries. >> > >> > Nyall >> > >> > * regarding Python support: Currently Fedora doesn't have packages for >> > PyQt6, which prevents enabling the Python bindings on Qt 6 builds. >> > There's an open request for packaging this but no movement yet. I'd >> > suggest that potentially QGIS.org could sponsor Sandro Mani to do this >> > packaging (also Qt 6 packages for the qca/keychain/qscintilla/qwt >> > libraries), given his experience in packaging all the other geo >> > libraries under Fedora... >> > >> > While there's been discussion and research into potentially moving to >> > Python for Qt instead of PyQt, that's a longer-term project and can't >> > be completed until QGIS 4.0. So for our short/medium term requirements >> > we need PyQt6 to move forward with the remaining Qt6 work... >> > _______________________________________________ >> > 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 >> >> _______________________________________________ >> 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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