CMake linker error with Linux Static Libraries

Hi!

I’ve built static libraries of Qt6(6.0.3) from Source on Ubuntu 20.04 with the following command:

../qt5/configure -release -static  -prefix ../staticlibs -nomake examples -nomake tests -nomake tools -platform linux-clang

 ** 

During build of a sample project using the generated libs, I get the following error:

“/usr/bin/ld: /home/twadmin/qt6/staticlibs/lib/libQt6OpenGL.a(qopenglshaderprogram.cpp.o): in function `QOpenGLShaderProgramPrivate::linkBinary()':

qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x2c): undefined reference to `QOpenGLProgramBinaryCache::ProgramDesc::cacheKey() const'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x31): undefined reference to `lcOpenGLProgramDiskCache()'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x44): undefined reference to `lcOpenGLProgramDiskCache()'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x50): undefined reference to `lcOpenGLProgramDiskCache()'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0xd8): undefined reference to `QOpenGLProgramBinaryCache::load(QByteArray const&, unsigned int)'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0xdf): undefined reference to `lcOpenGLProgramDiskCache()'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0xf5): undefined reference to `lcOpenGLProgramDiskCache()'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x131): undefined reference to `lcOpenGLProgramDiskCache()'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x1d8): undefined reference to `QOpenGLProgramBinaryCache::save(QByteArray const&, unsigned int)'

/usr/bin/ld: qopenglshaderprogram.cpp.text._ZN27QOpenGLShaderProgramPrivate10linkBinaryEv+0x22c): undefined reference to `QOpenGLProgramBinaryCache::QOpenGLProgramBinaryCache()'

/usr/bin/ld: /home/twadmin/qt6/staticlibs/lib/libQt6OpenGL.a(qopenglshaderprogram.cpp.o): in function `QOpenGLProgramBinarySupportCheck* QOpenGLMultiGroupSharedResource::value<QOpenGLProgramBinarySupportCheck>(QOpenGLContext*)':

qopenglshaderprogram.cpp.text._ZN31QOpenGLMultiGroupSharedResource5valueI32QOpenGLProgramBinarySupportCheckEEPT_P14QOpenGLContext[_ZN31QOpenGLMultiGroupSharedResource5valueI32QOpenGLProgramBinarySupportCheckEEPT_P14QOpenGLContext]+0x14f): undefined reference to `QOpenGLProgramBinarySupportCheck::QOpenGLProgramBinarySupportCheck(QOpenGLContext*)'

clang: error: linker command failed with exit code 1 (use -v to see invocation)

make[2]: *** [CMakeFiles/Testproj.dir/build.make:407: Testproj] Error 1

make[1]: *** [CMakeFiles/Makefile2:77: CMakeFiles/Testproj.dir/all] Error 2

make: *** [Makefile:84: all] Error 2”

Attaching a sample project for reference.