Issue to build Cmake based RTP Qt widget based application with Wind River workbench

Use Qt 5.15.16 for VxWorks 

Use ..\qt-everywhere-src-5.15.16\configure -commercial -confirm-license -release -static -platform win32-g++ -device vxworks-x86-clang -sysroot C:/WindRiver/workspace/qt5vsb -no-gcc-sysroot -hostprefix C:\WindRiver\workspace\qt5hoststatic -extprefix C:\WindRiver\workspace\qt5hoststatic -no-openssl -nomake tools -nomake examples -no-libjpeg -qpa eglfs -no-opengles3 -opengl es2 -skip qtwebengine -skip qtspeech -skip qtmultimedia -skip qtlocation -skip qtconnectivity -skip qt3d -skip qtgamepad -skip qtdeclarative -skip qtwayland -no-feature-sql -no-feature-sql-sqlite -no-feature-sql-sqlite2 -no-feature-sql-psql -no-feature-sql-mysql -no-feature-sql-tds -no-feature-sqlmodel -no-feature-network -no-feature-xml -no-feature-xml-schema -no-feature-concurrent -no-feature-harfbuzz -skip qtdoc -skip qttools -skip qttranslations -skip qtserialport -skip qtserialbus

to build and configure Qt statically for VxWorks x86 target

Afetr use attached project VxWorks RTP project using QtWidget APIs in Wind River Workbench 21.11 and try to build it

there is some issue at link stage due too to library orders in the link command line

with attached qt-everywhere-src-5.15.16\qtbase\mkspecs\devices\vxworks-x86-clang\qmake.conf  file it is working