qtaccessibility should not be a plugin

I am trying to update OpenSCAD from qt4 to qt5 using the mingw mxe cross build. I am having problems enabling the accessibility 'plugin' for static builds. Googling the interwebs, it appears that static plugin problems are quite common when trying to build QT programs.

Internationalization is not a 'plugin', because that would be inordinately complicated for people to use it. Accessibility should be the same way. It shouldn't take any extra time to enable Accessibility or get the build system working with it. I would note, for example, that the OpenSCAD menus dont even work under a screenreader unless this plugin is installled... could you imagine if Chinese menus didnt work unless there was a plugin?

Accessibility should have the same first-class status in the library as internationalization, for the simple reason that separate is not equal.

don@serebryanya:~/527/openscad/mingw64$ x86_64-w64-mingw32-g++ Wl,-s -Wl,-subsystem,windows -mthreads -o release/openscad.exe object_script.openscad.Release -lmingw32 -lqtmain -L/home/don/openscad_deps/mxe-w64/usr/x86_64-w64-mingw32/lib -lgmp -lmpfr -lCGAL -lopencsg -lglew32s -lboost_thread_win32-mt -lboost_program_options-mt -lboost_filesystem-mt -lboost_system-mt -lboost_regex-mt -lboost_chrono-mt -lglib-2.0 -lintl -liconv -lpcre mingw-cross-env/lib/libglew32s.a mingw-cross-env/lib/libglut.a mingw-cross-env/lib/libopengl32.a mingw-cross-env/lib/libGLEW.a mingw-cross-env/lib/libglu32.a mingw-cross-env/lib/libopencsg.a mingw-cross-env/lib/libmpfr.a mingw-cross-env/lib/libgmp.a mingw-cross-env/lib/libCGAL.a mingw-cross-env/lib/libintl.a mingw-cross-env/lib/libiconv.a -Wl,-stack,8388608 -L/home/don/openscad_deps/mxe-w64/usr/x86_64-w64-mingw32/qt5/lib -lQt5OpenGL -L/home/don/openscad_deps/mxe-w64/usr/x86_64-w64-mingw32/qt5/plugins/accessible -lqtaccessiblewidgets -lQt5Widgets -L/home/don/openscad_deps/mxe-w64/usr/x86_64-w64-mingw32/qt5/plugins/platforms -lqwindows -lwinspool -lshlwapi -lfreetype -lbz2 -lpng16 -lQt5PlatformSupport -lQt5Gui -lcomdlg32 -loleaut32 -limm32 -lwinmm -lglu32 -lopengl32 -lgdi32 -ljpeg -lpng -lQt5Core -lole32 -luuid -lws2_32 -ladvapi32 -lshell32 -luser32 -lkernel32 -lz -lsicuin -lsicuuc -lsicudt -lpcre16 -lqtaccessiblewidgets objects/openscad_win32_res.o
./objects/openscad.o:openscad.cc.text.startup+0xaf): undefined reference to `qt_static_plugin_qtaccessiblewidgets()'
collect2: error: ld returned 1 exit status