Solved Qt 5.7.0 qtwayland build error with gcc6
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I am trying to build 5.7.0 in linux with gcc 6.1.0. The module qtwayland is failing. If I skip this module, everything else builds. There are multiple errors about something "not being declared in this scope". Here is the first error:
In file included from /home/paul/mnt/sources/build-qt/qtbase/include/QtCore/qglobal.h:1:0, from ../../include/QtWaylandCompositor/../../../../../../src_mnt/sources/qt5/qtwayland/src/compositor/global/qwaylandexport.h:40, from ../../include/QtWaylandCompositor/qwaylandexport.h:1, from ../../include/QtWaylandCompositor/../../../../../../src_mnt/sources/qt5/qtwayland/src/compositor/global/qwaylandcompositorextension.h:40, from ../../include/QtWaylandCompositor/qwaylandcompositorextension.h:1, from ../../include/QtWaylandCompositor/QWaylandCompositorExtension:1, from /home/paul/src_mnt/sources/qt5/qtwayland/src/compositor/extensions/qwaylandtextinput.h:40, from /home/paul/src_mnt/sources/qt5/qtwayland/src/compositor/extensions/qwaylandtextinput.cpp:37: /home/paul/src_mnt/sources/qt5/qtwayland/src/compositor/extensions/qwaylandtextinput.cpp: In member function 'void QWaylandTextInputPrivate::sendKeyEvent(QKeyEvent*)': /home/paul/src_mnt/sources/qt5/qtwayland/src/compositor/extensions/qwaylandtextinput.cpp:218:35: error: 'QWaylandXkb' was not declared in this scope foreach (xkb_keysym_t keysym, QWaylandXkb::toKeysym(event)) {
Here are my build commands:
export CXXFLAGS=-fno-delete-null-pointer-checks && <path_to_git_source>/configure -prefix /opt/qt5 \ -sysconfdir /etc/xdg \ -confirm-license \ -opensource \ -dbus-linked \ -openssl-linked \ -system-harfbuzz \ -system-sqlite \ -nomake examples \ -no-rpath \ -optimized-qmake \ -skip qtwebengine && make
Any ideas on how to fix?
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Ok, I got this figured out. I thought it might be an issue with gcc6, so I tried on a different system with gcc5, which was successful. I compared the config.summary files from the 2 builds and saw that the unsuccessful build was attempting to use a bundled version of libxkbcommon. I installed libxkbcommon-0.6.1 on the gcc6 system and re-built. This time it was successful.
Paul
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@Paul-H. i got the same error , and installed libxkbcommon-0.6.1,but the same error is also ~
these days , i compiled qt5 for a lot time , but eventuily disappointed~