Building Qt OPC UA wrapper for open62541 on Windows 10 using MinGW
Base Requirements(tested on):OS: Windows 10
Qt: Qt Creator 17.0.1/Qt 6.7.3 (MinGW 11.2.0 64-bit)
Python: Python 3.13 (needed for compiling open62541)
Note:
As of 9/26/2025, Qt 6.9.2 (MinGW 13.1.0 64-bit) is not able to build open62541
Set environment variables, open cmd.exe
call C:\Qt\6.7.3\mingw_64\bin\qtenv2.bat
set path=C:\Qt\Tools\CMake_64\bin;%path%
mkdir c:\g
cd c:\g
git clone https://github.com/open62541/open62541.git
cd open62541
git checkout v1.4.13
mkdir build && cd build
cmake .. -G "MinGW Makefiles" -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX="C:/open62541-install"
mingw32-make
mingw32-make install
cd c:\g
git clone https://code.qt.io/qt/qtopcua.git
cd qtopcua
git checkout v6.7.3
mkdir build
cd build
qt-cmake .. ^
-G "MinGW Makefiles" ^
-DINPUT_open62541=system ^
-DCMAKE_PREFIX_PATH="C:/open62541-install" ^
-DCMAKE_INSTALL_PREFIX="C:/Qt/6.7.3/mingw_64"
mingw32-make
mingw32-make install
