(Windows/mingw64) Can't link static binary

[autofire372]

I am at my wit's end. I am trying to build mGBA as a static binary on Windows via mingw64. I have installed qt5-static, and installed ffmpeg 4.2.3 from source. I then invoke the following cmake command:

cmake -DCMAKE_EXE_LINKER_FLAGS=-static -DUSE_MINIZIP=OFF -DZLIB_LIBRARY_RELEASE=/mingw64/lib/libz.a -DEPOXY_LIBRARIES=/mingw64/lib/libepoxy.a -DPNG_LIBRARY_RELEASE=/mingw64/lib/libpng.a -DSQLite3_LIBRARY=/mingw64/lib/libsqlite3.a -DQt5Core_DIR=/mingw/qt5-static/lib/cmake/Qt5Core -DQt5Gui_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5Gui -DQt5LinguistTools_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5LinguistTools -DQt5Multimedia_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5Multimedia -DQt5Network_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5Network -DQt5OpenGL_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5OpenGL -DQt5Widgets_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5Widgets -DQt5_DIR:PATH=/mingw64/qt5-static/lib/cmake/Qt5 -DQTPCRE:FILEPATH=/mingw64/qt5-static/lib/libqtpcre2.a -DBUILD_STATIC=ON -DBUILD_SHARED=OFF .. -G "MSYS Makefiles"

The SDL binary builds fine (though it refuses to run outside minGW), but the Qt binary trips at the finish line:

C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lqwindows C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lqwindows collect2.exe: error: ld returned 1 exit status make[2]: *** [qt/CMakeFiles/mgba-qt.dir/build.make:1755: qt/mGBA.exe] Error 1 make[1]: *** [CMakeFiles/Makefile2:513: qt/CMakeFiles/mgba-qt.dir/all] Error 2 make: *** [Makefile:172: all] Error 2

I can't use Docker as I am on Windows 10 Home. What am I doing wrong?

[endrift]

uh, wow that's a lot of flags. Usually I'd just do -DCMAKE_PREFIX_PATH=/mingw/qt5-static instead of that mess.

[autofire372]

Condensed it down to the following:

cmake -DCMAKE_EXE_LINKER_FLAGS=-static -DCMAKE_PREFIX_PATH=/mingw64/qt5-static -DUSE_MINIZIP=OFF -DBUILD_STATIC=ON -DBUILD_SHARED=OFF .. -G "MSYS Makefiles"

The SDL build now runs outside of mingw, but I still get the cannot find -lqwindows error when linking the qt build.

EDIT: I just tried again from a fresh mingw64 setup and still got the same exact errors at link time:

[100%] Linking CXX executable mGBA.exe C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lqwindows C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lqwindows collect2.exe: error: ld returned 1 exit status make[2]: *** [qt/CMakeFiles/mgba-qt.dir/build.make:1753: qt/mGBA.exe] Error 1 make[1]: *** [CMakeFiles/Makefile2:513: qt/CMakeFiles/mgba-qt.dir/all] Error 2 make: *** [Makefile:172: all] Error 2

[Dimensional]

You could install a version of Docker that uses virtualbox instead, and get pretty much the same results. https://docs.docker.com/toolbox/toolbox_install_windows/ There might be a few bugs when using even the latest version of Docker Toolbox, so try going a version or two older, but will be useful since you can't install Hyper-V in Windows 10 Home. Some of the issue pages on their github page explain which version will work if you have issues.

…

On 5/30/2020 7:02 PM, autofire372 wrote: Condensed it down to the following: |cmake -DCMAKE_EXE_LINKER_FLAGS=-static -DCMAKE_PREFIX_PATH=/mingw64/qt5-static -DUSE_MINIZIP=OFF -DBUILD_STATIC=ON -DBUILD_SHARED=OFF .. -G "MSYS Makefiles"| I still get the |cannot fine -lqwindows| error atthe qt build's link time. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1769 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABGLLYJHNALS4KDX7LBQZDLRUGNBFANCNFSM4NO4U5LQ>.

[autofire372]

You could install a version of Docker that uses virtualbox instead, and get pretty much the same results. https://docs.docker.com/toolbox/toolbox_install_windows/ There might be a few bugs when using even the latest version of Docker Toolbox, so try going a version or two older, but will be useful since you can't install Hyper-V in Windows 10 Home. Some of the issue pages on their github page explain which version will work if you have issues.
…
On 5/30/2020 7:02 PM, autofire372 wrote: Condensed it down to the following: |cmake -DCMAKE_EXE_LINKER_FLAGS=-static -DCMAKE_PREFIX_PATH=/mingw64/qt5-static -DUSE_MINIZIP=OFF -DBUILD_STATIC=ON -DBUILD_SHARED=OFF .. -G "MSYS Makefiles"| I still get the |cannot fine -lqwindows| error atthe qt build's link time. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1769 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABGLLYJHNALS4KDX7LBQZDLRUGNBFANCNFSM4NO4U5LQ.

You actually can install Hyper-V (and Docker Desktop) on Windows 10 Home, but Docker still won't let you run Windows container images unless you upgrade to Pro.

[endrift]

Can you see if changing qwindows to Qt5::QWindowsIntegrationPlugin on line 292 of src/platform/qt/CMakeLists.txt fixes this?

[autofire372]

Unfortunately, that just resulted in a bunch of undefined references to things like __imp__ZN10QArrayData10deallocateEPS_yy and __imp__ZN14QSystemLibrary4loadEPKwb.

[endrift]

I managed to reproduce this, after a lot of fighting with my Windows VM. I'll have a fix tonight. Unfortuantely several of the libraries that it depends on still aren't static so you'll need to package a few DLLs (e.g. SDL) but it's way fewer than before.