cross compile with mingw

[iltommi]

I'm trying to cross compile using mingw and I get an error when compiling

[  3%] Building CXX object CMakeFiles/PythonQt.dir/src/PythonQt.cpp.obj
/usr/bin/i686-w64-mingw32-g++  -DPYTHONQT_EXPORTS -DPYTHONQT_SUPPORT_NAME_PROPERTY -DPYTHONQT_USE_RELEASE_PYTHON_FALLBACK -DPYTHONQT_WRAP_Qtcore -DPYTHONQT_WRAP_Qtgui -DPYTHONQT_WRAP_Qtnetwork -DPYTHONQT_WRAP_Qtopengl -DPYTHONQT_WRAP_Qtqml -DPYTHONQT_WRAP_Qtquick -DPYTHONQT_WRAP_Qtsql -DPYTHONQT_WRAP_Qtsvg -DPYTHONQT_WRAP_Qtuitools -DPYTHONQT_WRAP_Qtxml -DQT_CORE_LIB -DQT_GUI_LIB -DQT_MULTIMEDIA_LIB -DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_PRINTSUPPORT_LIB -DQT_QML_LIB -DQT_QUICKWIDGETS_LIB -DQT_QUICK_LIB -DQT_SQL_LIB -DQT_SVG_LIB -DQT_UITOOLS_LIB -DQT_WIDGETS_LIB -DQT_XML_LIB @CMakeFiles/PythonQt.dir/includes_CXX.rsp -std=gnu++11 -o CMakeFiles/PythonQt.dir/src/PythonQt.cpp.obj -c /mnt/local/src/neutrinoMaster/PythonQt/src/PythonQt.cpp
/mnt/local/src/neutrinoMaster/PythonQt/src/PythonQt.cpp:1951:10: fatal error: private/qmetaobjectbuilder_p.h: No such file or directory
 #include <private/qmetaobjectbuilder_p.h>
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/PythonQt.dir/build.make:164: CMakeFiles/PythonQt.dir/src/PythonQt.cpp.obj] Error 1
make[2]: Leaving directory '/mnt/local/src/neutrinoMaster/PythonQt/cross'
make[1]: *** [CMakeFiles/Makefile2:68: CMakeFiles/PythonQt.dir/all] Error 2
make[1]: Leaving directory '/mnt/local/src/neutrinoMaster/PythonQt/cross'
make: *** [Makefile:130: all] Error 2

I bet you already run into this since : https://github.com/commontk/PythonQt/blob/patched-8/CMakeLists.txt#L154

but in my case the variable ${Qt5Core_PRIVATE_INCLUDE_DIRS} is empty

qmetaobjectbuilder_p.h is located here:

/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore/5.9.3/QtCore/private/qmetaobjectbuilder_p.h

[jcfr]

trying to cross compile using mingw

You could look at the dockcross/windows-x64 image, it also provides a toolchain file.

PS: Currently in an airport, I can not download the docker image to experiment.

but in my case the variable ${Qt5Core_PRIVATE_INCLUDE_DIRS} is empty

That said, you could try to explicitly set the variable configuring with -DQt5Core_PRIVATE_INCLUDE_DIRS:PATH=/usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore/5.9.3/QtCore

[iltommi]

I did set up something similar with docker https://hub.docker.com/r/iltommi/neutrino-docker-cross
for my project (which compiles my pythonqt fork)

it's fedora based (which has a lot of pre-built mingw packages)

[iltommi]

ok I understand that you included more recent input from sourceforge mai tree.

I got your tree compiled with

mingw32-cmake .. -DQt5_DIR=/usr/i686-w64-mingw32/sys-root/mingw/lib/cmake/Qt5 -DPythonQt_Wrap_QtAll=TRUE -DCMAKE_CXX_FLAGS='-isystem /usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore/5.9.3/QtCore -isystem /usr/i686-w64-mingw32/sys-root/mingw/include/qt5/QtCore/5.9.3'

thanks a lot!