build error on my laptop (armv7l) in running linux (slackware). And building kiwix-desktop-2.5.1 with error src/webview.h:5:10: fatal error: QWebEngineView: No such file or directory

[Rodartist]

I'm using a slackbuild script and I'm not totally familiar where this build is failing.
https://slackbuilds.org/repository/15.0/office/kiwix-desktop/?search=kiwix-desktop
https://slackbuilds.org/slackbuilds/15.0/office/kiwix-desktop/kiwix-desktop.SlackBuild

issuing qmake on kiwi-desktop-2.5.1 there are messages

/tmp/SBo/kiwix-desktop-2.5.1/kiwix-desktop.pro:10: Unknown test function: qtHaveModule              
/tmp/SBo/kiwix-desktop-2.5.1/kiwix-desktop.pro:111: Unknown test function: qtHaveModule             
/tmp/SBo/kiwix-desktop-2.5.1/kiwix-desktop.pro:168: Unknown test function: qtHaveModule             
/tmp/SBo/kiwix-desktop-2.5.1/kiwix-desktop.pro:184: Unknown test function: qtHaveModule             
Project MESSAGE: Warning: unknown QT: webenginewidgets                                              
Project MESSAGE: Warning: unknown QT: webchannel       

and the error when make install starts.

.... (still unpacking here)
/usr/lib/qt/bin/uic src/contentmanagerside.ui -o ui_contentmanagerside.h                            
/usr/lib/qt/bin/uic src/readinglistbar.ui -o ui_readinglistbar.h
/usr/lib/qt/bin/uic ui/localkiwixserver.ui -o ui_localkiwixserver.h
/usr/lib/qt/bin/uic ui/settings.ui -o ui_settings.h
ui/settings.ui: Warning: The name 'verticalLayout' (QVBoxLayout) is already in use, defaulting to 'v
erticalLayout1'.
/usr/lib/qt/bin/uic src/tableofcontentbar.ui -o ui_tableofcontentbar.h
....
g++ -c -pipe -std=c++17 -Werror -I/usr/include/p11-kit-1 -I/usr/local/include -O2 -Wall -W -D_REENTR
ANT -DVERSION=2.5.1 -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x060000 -DQT_NO_DEBUG -
DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/lib/qt/mkspecs/linux-g++ -I. -I/usr/li
b/qt/include/QtCore -I/usr/lib/qt/include/QtNetwork -I/usr/lib/qt/include/QtGui -I/usr/lib/qt/includ
e -Isubprojects/QtSingleApplication/src -I. -I. -o choiceitem.o src/choiceitem.cpp
In file included from src/tabbar.h:7,
                 from src/kiwixapp.h:6,
                 from src/choiceitem.cpp:5:
src/webview.h:5:10: fatal error: QWebEngineView: No such file or directory
    5 | #include <QWebEngineView>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:965: choiceitem.o] Error 1

My system has the QtWebEngineWidgets directory

/usr/include/qt5/QtWebEngineWidgets/
5.15.3                                QtWebEngineWidgetsVersion
QWebEngineCertificateError            qtwebenginewidgets-config.h
QWebEngineClientCertificateSelection  qtwebenginewidgetsglobal.h
QWebEngineContextMenuData             qtwebenginewidgetsversion.h
QWebEngineDownloadItem                qwebenginecertificateerror.h
QWebEngineFullScreenRequest           qwebengineclientcertificateselection.h
QWebEngineHistory                     qwebenginecontextmenudata.h
QWebEngineHistoryItem                 qwebenginedownloaditem.h
QWebEnginePage                        qwebenginefullscreenrequest.h
QWebEngineProfile                     qwebenginehistory.h
QWebEngineScript                      qwebenginepage.h
QWebEngineScriptCollection            qwebengineprofile.h
QWebEngineSettings                    qwebenginescript.h
QWebEngineView                        qwebenginescriptcollection.h
QtWebEngineWidgets                    qwebenginesettings.h
QtWebEngineWidgetsDepends             qwebengineview.h

Any files I could edit so the build pulls through so I can use kiwix-desktop?

thank you for your time!

Rod

edit:
looking https://qthub.com/static/doc/qt5/qmake/qmake-environment-reference.html

Trying to run qmake with addition flags...
In the slackbuild for kiwix-desktop: qmake PREFIX=/usr
and I find adding flags has no results. QT_INSTALL_PLUGINS - location of Qt plugins
QT_INSTALL_PLUGINS=/usr/include/qt5/QtWebEngineWidgets/ or PLUGINS=/usr/include/qt5/QtWebEngineWidgets/

[kelson42]

where is QWebEngineView.h on the filesystem?

[Rodartist]

Hi Kelson.
Here,
/usr/include/qt5/QtWebEngineWidgets/ which is in the issue I wrote.

although the file in the directory is
qwebengineview.h
and it is not in uppercase letters.

Creating a symlink $ sudo ln -s /usr/include/qt5/QtWebEngineWidgets/qwebengineview.h /usr/include/qt5/QtWebEngineWidgets/QWebEngineView.h has no effect.

here recent packages I have to try to get the compilation to go through.
kiwix-tools-bin-3.4.0-armv7l-2_SBo
Mustache-4.1-arm-1_SBo
pugixml-1.16-arm-1_SBo
libzim-9.7.0-arm-1_SBo
gtest-1.12.1-arm-2_SBo
python3-PyQtWebEngine-5.15.3-arm-1_SBo
both libkiwix-14.2.1-arm-1_SBo and libkiwix-14.1.1-arm-1_SBo
qt5-5.15.3_20211130_014c375b-arm-2