Set up Qtcreator for cross-compiling Linux host to Windows 10 and 11 targets
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Hi,
I am trying to set up Qtcreator to facilitate Windows development using a Linux, i.e. Ubuntu 22.04 or Ubuntu 24.04 host. I do have Qt6 development environment (Qtcreator etc...) set up and working on my Windows 10 target, but the compilation and linking steps are painfully slow on Windows and I think (from past experience) would be much faster on Linux due to Linux's faster file IO (as I am told).
I have tried downloading the Qt 6.9 source code and have installed mingw-w64 cross-compiler for Win32 Win64.
I followed the procedure of:
https://medium.com/@vladadgad/cross-compile-qt-for-windows-on-linux-platform-57e4b71ed1aa
However, I get the following fatal error:Building CXX object CMakeFiles/cmTC_5bc10.dir/src.cxx.o
/usr/bin/c++ -DHAVE_ntddmodm -fPIE -std=gnu++17 -o CMakeFiles/cmTC_5bc10.dir/src.cxx.o -c /opt/Qtsource/qt5/CMakeFiles/CMakeTmp/src.cxx
/opt/Qtsource/qt5/CMakeFiles/CMakeTmp/src.cxx:2:10: fatal error: windows.h: No such file or directory
2 | #include <windows.h>
| ^~~~~~~~~~~
compilation terminated.It appears that the cross-compiler cannot find windows.h but locate finds it in:
/usr/share/mingw-w64/include/windows.h
Any ideas welcome and thanks,
Phil -
/usr/bin/c++is the local compiler on Linux, not the cross-compiler, which on my system isx86_64-w64-mingw32-g++.
That means, something in the configure step went wrong or the toolchain hasn't been installed correctly.
See here for more info: https://doc.qt.io/qtvstools/qtvstools-how-to-cross-compile.html
