Everything builds, but my application crashes.

To clarify:

CS (built with GCC10.1) + Application (built with GCC7.5.0) is fine

CS (built with GCC10.1) + Application (built with GCC10.1) crashes.

It crashes here:

"ldd MyApp" and "ldd platforms/CsGuiXcb1.7.so" show no missing dependencies - which does not conclude that the dependencies that are found are compatible... comparing "ldd builtWithGCC7.5/MyApp" vs "ldd builtWithGCC10.1/MyApp" shows that GCC10.1 leaves a lot more dependencies in.Callstack wrote:std::_Deque_iterator<QString8, QString8 const&, QString8 const*>::_Deque_iterator stl_deque.h:169

std::deque<QString8, std::allocator<QString8> >::_M_range_insert_aux<std::_Deque_iterator<QString8, QString8 const&, QString8 const*> > deque.tcc:600

QApplicationPrivate::createPlatformIntegration() 0x00007ffff540b1bd

QApplicationPrivate::createEventDispatcher() 0x00007ffff540c948

QCoreApplicationPrivate::init() 0x00007ffff39357dd

QApplicationPrivate::init() 0x00007ffff540ef1c

QApplication::QApplication(int&, char**, int) 0x00007ffff54106ad

main main.cpp:408

__libc_start_main 0x00007ffff1ad3b97

_start 0x000000000042594a

vsldd builtWithGCC7.5/MyApp wrote:linux-vdso.so.1

libCsGui1.7.so

libCsCore1.7.so

libstdc++.so.6

libm.so.6

libgcc_s.so.1

libc.so.6

libudev.so.1

libpthread.so.0

libCsOpenGL1.7.so

libCsSvg1.7.so

libOpenGL.so.0

libz.so.1

/lib64/ld-linux-x86-64.so.2

libdl.so.2

librt.so.1

libGLdispatch.so.0

overall GCC10.1 addsldd builtWithGCC10.1/MyApp wrote:linux-vdso.so.1

libCsOpenGL1.7.so

libCsSvg1.7.so

libCsGui1.7.so

libCsCore1.7.so

libz.so.1

libdl.so.2

libpthread.so.0

libOpenGL.so.0

libGLX.so.0

libGLU.so.1

libstdc++.so.6

libm.so.6

libgcc_s.so.1

libc.so.6

libudev.so.1

/lib64/ld-linux-x86-64.so.2

libGLdispatch.so.0

libX11.so.6

libGL.so.1

librt.so.1

libxcb.so.1

libXau.so.6

libXdmcp.so.6

Makes no sense to melibGLX.so.0

libGLU.so.1

libX11.so.6

libGL.so.1

libxcb.so.1

libXau.so.6

libXdmcp.so.6

If anyone knows what to look for in particular, i am all ears.