Building mongodb drivers for qt6.5

A K A S H

Hello,

I have a working application on Qt 5.15 that I am trying to port over to Qt 6.5, but I am unsuccessful in figuring out how to configure cmake for minGW Qt 6.5.

C Driver-----------------------------------------------------------------------------------------------
in CMakeLists.txt I have added the following lines

set(CMAKE_C_COMPILER "C:/Qt/Tools/mingw1120_64/bin/gcc.exe")
set(CMAKE_CXX_COMPILER "C:/Qt/Tools/mingw1120_64/bin/g++.exe")

To make the C Driver i use this command

C:/Qt/Tools/CMake_64/bin/cmake.exe .. -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release -DBUILD_VERSION="1.23.4" -DENABLE_AUTOMATIC_INIT_AND_CLEANUP=OFF -DENABLE_EXTRA_ALIGNMENT=0 -DCMAKE_INSTALL_PREFIX=C:/Users/mycomputer/Desktop/BuildingSpot/install

Followed by

C:/Qt/Tools/CMake_64/bin/cmake.exe --build . --target install

Cxx driver------------------------------------------------------------------------------------------------
in CMakeLists.txt I have added the following lines

set(CMAKE_C_COMPILER "C:/Qt/Tools/mingw1120_64/bin/gcc.exe")
set(CMAKE_CXX_COMPILER "C:/Qt/Tools/mingw1120_64/bin/g++.exe")

And i tried 2 ways of making the cxx driver, one with boost

C:/Qt/Tools/CMake_64/bin/cmake.exe .. -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release -DBSONCXX_POLY_USE_BOOST=1 -DBUILD_VERSION="3.7.1" -DBOOSTROOT=C:/boost/boost_1_82_0 -DCMAKE_PREFIX_PATH=C:/Users/mycomputer/Desktop/BuildingSpot/install -DCMAKE_INSTALL_PREFIX=C:/Users/mycomputer/Desktop/BuildingSpot/install2

and one without boost

C:/Qt/Tools/CMake_64/bin/cmake.exe .. -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release -DBUILD_VERSION="3.7.1" -DCMAKE_CXX_STANDARD=17 -DCMAKE_PREFIX_PATH=C:/Users/mycomputer/Desktop/BuildingSpot/install -DCMAKE_INSTALL_PREFIX=C:/Users/mycomputer/Desktop/BuildingSpot/install2

Followed by

C:/Qt/Tools/CMake_64/bin/cmake.exe --build . --target install

Compiling Qt application-------------------------------------------------------------------------------
For the Qt application

on Qt 5.15 with the old drivers (mongocxx 3.4 made for minGW 7.3) I can access mongodb with no issues
on Qt 6.5 with the old drivers (mongocxx 3.4 made for minGW 7.3) I can use most of mongodb's functionality, but it is unable to read doubles from mongodb

I tried building mongocxx 3.6 and 3.7 using the above method, and trying out a pre-compiled MongoCXX 3.5.1 for GCC 10.1 from online, and all three of them result in the same error message after configuring Qt creator.

Here are the includes from my project file that may be relevant

CONFIG += c++17
#mongoDB
INCLUDEPATH += $$PWD/../../MongoDB/Windows/mongocxx371/include/mongocxx/v_noabi \
               $$PWD/../../MongoDB/Windows/mongocxx371/include/bsoncxx/v_noabi \
               $$PWD/../../MongoDB/WindowsBoost

win32: LIBS += -L$$PWD/../../MongoDB/Windows/mongocxx371/lib/ -lmongocxx -lbsoncxx

INCLUDEPATH += $$PWD/../../MongoDB/Windows/mongocxx371/include
DEPENDPATH += $$PWD/../../MongoDB/Windows/mongocxx371/include

INCLUDEPATH += $$PWD/../../MongoDB/Windows/mongocxx371/lib
DEPENDPATH += $$PWD/../../MongoDB/Windows/mongocxx371/lib

INCLUDEPATH += $$PWD/../../MongoDB/Windows/mongocxx371/bin

Am I making some kind of mistake in the way i configure cmake for qt 6.5?