QtMqtt build

PePoM

I am trying to use QTMQTT in my project. I have successfully built a library, but problems occur when I try to include it in my project or run provided examples. I am using Qt 5.15.2 MinQW 64 on a windows machine.

Steps taken:

Download matching lib
C:\qtmqtt-5.15.2> C:\Qt\5.15.2\mingw81_64\bin\qmake -r
Make
Make install

C:\qtmqtt-5.15.2>make install
cd src\ && ( if not exist Makefile C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -o Makefile C:\qtmqtt-5.15.2\src\src.pro ) && C:/ProgramData/chocolatey/lib/make/tools/install/bin/make.exe -f Makefile install
make[1]: Entering directory 'C:/qtmqtt-5.15.2/src'
cd mqtt\ && ( if not exist Makefile C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -o Makefile C:\qtmqtt-5.15.2\src\mqtt\mqtt.pro ) && C:/ProgramData/chocolatey/lib/make/tools/install/bin/make.exe -f Makefile install
make[2]: Entering directory 'C:/qtmqtt-5.15.2/src/mqtt'
C:/ProgramData/chocolatey/lib/make/tools/install/bin/make.exe -f Makefile.Release install
make[3]: Entering directory 'C:/qtmqtt-5.15.2/src/mqtt'
copy /y ..\..\lib\Qt5Mqtt.dll C:\Qt\5.15.2\mingw81_64\bin\Qt5Mqtt.dll
        1 file(s) copied.
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install qinstall C:\qtmqtt-5.15.2\lib\Qt5Mqtt.dll.debug C:\Qt\5.15.2\mingw81_64\lib\Qt5Mqtt.dll.debug
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install sed  -e "s,C:/qtmqtt-5.15.2/lib,$$[QT_INSTALL_LIBS],g" -e "s,C:\\\\qtmqtt-5.15.2\\\\lib,$$[QT_INSTALL_LIBS],gi" -e "s,C:/Qt/5.15.2/mingw81_64/lib,$$[QT_INSTALL_LIBS],g" -e "s,C:\\\\Qt\\\\5.15.2\\\\mingw81_64\\\\lib,$$[QT_INSTALL_LIBS],gi" ..\..\lib\Qt5Mqtt.prl > C:\Qt\5.15.2\mingw81_64\lib\Qt5Mqtt.prl
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install sed  -e "s,C:/qtmqtt-5.15.2/lib,C:/Qt/5.15.2/mingw81_64/lib,g" -e "s,C:\\\\qtmqtt-5.15.2\\\\lib,C:\\\\Qt\\\\5.15.2\\\\mingw81_64\\\\lib,gi" ..\..\lib\pkgconfig\Qt5Mqtt.pc > C:\Qt\5.15.2\mingw81_64\lib\pkgconfig\Qt5Mqtt.pc
copy /y ..\..\lib\libQt5Mqtt.a C:\Qt\5.15.2\mingw81_64\lib\libQt5Mqtt.a
        1 file(s) copied.
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install qinstall C:\qtmqtt-5.15.2\include\QtMqtt\QtMqttDepends C:\Qt\5.15.2\mingw81_64\include\QtMqtt\QtMqttDepends
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install qinstall C:\qtmqtt-5.15.2\mkspecs\modules-inst\qt_lib_mqtt.pri C:\Qt\5.15.2\mingw81_64\mkspecs\modules\qt_lib_mqtt.pri
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install qinstall C:\qtmqtt-5.15.2\mkspecs\modules-inst\qt_lib_mqtt_private.pri C:\Qt\5.15.2\mingw81_64\mkspecs\modules\qt_lib_mqtt_private.pri
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install qinstall C:\qtmqtt-5.15.2\lib\cmake\Qt5Mqtt\Qt5MqttConfig.cmake C:\Qt\5.15.2\mingw81_64\lib\cmake\Qt5Mqtt\Qt5MqttConfig.cmake
C:\Qt\5.15.2\mingw81_64\bin\qmake.exe -install qinstall C:\qtmqtt-5.15.2\lib\cmake\Qt5Mqtt\Qt5MqttConfigVersion.cmake C:\Qt\5.15.2\mingw81_64\lib\cmake\Qt5Mqtt\Qt5MqttConfigVersion.cmake
make[3]: Leaving directory 'C:/qtmqtt-5.15.2/src/mqtt'
make[2]: Leaving directory 'C:/qtmqtt-5.15.2/src/mqtt'
make[1]: Leaving directory 'C:/qtmqtt-5.15.2/src'

I assume that installation is successful, but when I try to #include <QMqttClient> or <QtMqtt/QMqttClient> in a project I have an error "file not found" (I added QT += mqtt to pro file). When inspecting a folder, it appears that there is only one file, which is <QtMqtt/QtMqttDepends> nothing else. Did I miss any important step when building qtmqtt?.

jsulm

@PePoM I don't know why there are no other header files, but you could copy those manually from source folder to C:\Qt\5.15.2\mingw81_64\include\QtMqtt

PePoM

Do You mean .h from cloned repo?

EDIT: I'll elaborate, building and linking 3rd party libs is confusing me(still noob at that part). I cloned qtmqtt repo then build it using "make". Now i have cloned repo polder E:/qtmqtt-5.15.2 and build folder

Cloned repo contains headers(first image), build directory does not. When I explore Qt built in libraries I can see that every .h file has a corresponding file without extension (example QTCharts)

Shouldn't I have a similar file structure in my built folder?

SGaist

Hi,

Might be a silly question but did you checkout the 5.15.2 branch before building ?

PePoM

SGaist pointed me into the right direction. Simply downloading branch from github (even that it says 5.15.2) and running "make" does not work. Quick solution if someone has the same problem:
make sure perl is instaled

git clone https://github.com/qt/qtmqtt
cd "to cloned repo"
git checkout -b qtmatt-5.x.x
git branch // make sure branch exists
git clone https://github.com/qt/qtmqtt.git && git checkout v5.x.x

Then you can "make" "make install". And now you should have all necessary files

SGaist

The default branch when you clone Qt is the dev branch which is for Qt 6 currently.