New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/32328#issuecomment-893088922

Comment:
```
g++ -c -O2 -fPIC -g -pipe -Wall -Wextra -Wno-missing-field-initializers -Wno-trigraphs -fdiagnostics-show-option -Wlogical-op -Wno-variadic-macros -frtti -fno-exceptions -Wno-long-long -fshort-wchar -fno-strict-aliasing -fvisibility=hidden -DVBOX_HAVE_VISIBILITY_HIDDEN -DRT_USE_VISIBILITY_DEFAULT -fvisibility-inlines-hidden -Wno-multistatement-macros -Wno-ignored-qualifiers  -std=c++11   -Wno-deprecated-declarations -fPIC -Wno-deprecated-copy -g -pipe -Wall -Wextra -Wno-missing-field-initializers -Wno-trigraphs -fdiagnostics-show-option -Wlogical-op -Wno-variadic-macros -frtti -fno-exceptions -Wno-long-long -fshort-wchar -fno-strict-aliasing -fvisibility=hidden -DVBOX_HAVE_VISIBILITY_HIDDEN -DRT_USE_VISIBILITY_DEFAULT -fvisibility-inlines-hidden -Wno-multistatement-macros -Wno-ignored-qualifiers  -std=c++11   -Wno-deprecated-declarations -fPIC -m64 -I/builddir/VirtualBox-6.1.26/src/VBox/Frontends/VirtualBox/include -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/bin/sdk/bindings/xpcom/include -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/bin/sdk/bindings/xpcom/include/xpcom -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/bin/sdk/bindings/xpcom/include/string -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/bin/sdk/bindings/xpcom/include/xpcom -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/bin/sdk/bindings/xpcom/include/nsprpub -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/bin/sdk/bindings/xpcom/include/ipcd -I/usr/include/qt5/QtGui/QtOpenGL -I/usr/include/qt5/QtGui -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/obj/VBoxOGL2D/qtmoc -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release/obj/VBoxOGL2D/qtuic -I/builddir/VirtualBox-6.1.26/include -I/builddir/VirtualBox-6.1.26/out/linux.amd64/release -DVBOX -DVBOX_OSE -DVBOX_WITH_64_BITS_GUESTS -DRT_OS_LINUX -D_FILE_OFFSET_BITS=64 -DRT_ARCH_AMD64 -D__AMD64__ -DVBOX_WITH_DEBUGGER -DVBOX_WITH_HARDENING -DRTPATH_APP_PRIVATE=\"/usr/share/virtualbox\" -DRTPATH_APP_PRIVATE_ARCH=\"/usr/lib/virtualbox\" -DRTPATH_SHARED_LIBS=\"/usr/lib/virtualbox\" -DRTPATH_APP_DOCS=\"\" -DPIC -DIN_RING3 -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -DHAVE_CONFIG_H -DHC_ARCH_BITS=64 -DGC_ARCH_BITS=64 -DVBOX_WITH_XPCOM -DVBOX_WITH_XPCOM_NAMESPACE_CLEANUP -DPIC -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -DHAVE_CONFIG_H -DVBOX_WITH_VIDEOHWACCEL -DVBOX_GUI_USE_QGL -DQT_OPENGL_LIB -D_REENTRANT -Wp,-MD,/builddir/VirtualBox-6.1.26/out/linux.amd64/release/obj/VBoxOGL2D/src/VBoxGLSupportInfo.o.dep -Wp,-MT,/builddir/VirtualBox-6.1.26/out/linux.amd64/release/obj/VBoxOGL2D/src/VBoxGLSupportInfo.o -Wp,-MP -o /builddir/VirtualBox-6.1.26/out/linux.amd64/release/obj/VBoxOGL2D/src/VBoxGLSupportInfo.o  /builddir/VirtualBox-6.1.26/src/VBox/Frontends/VirtualBox/src/VBoxGLSupportInfo.cpp
/builddir/VirtualBox-6.1.26/src/VBox/Frontends/VirtualBox/src/VBoxGLSupportInfo.cpp:22:10: fatal error: QGLWidget: No such file or directory
   22 | #include <QGLWidget>
      |          ^~~~~~~~~~~
compilation terminated.
kmk: *** [/builddir/VirtualBox-6.1.26/kBuild/footer-pass2-compiling-targets.kmk:277: /builddir/VirtualBox-6.1.26/out/linux.amd64/release/obj/VBoxOGL2D/src/VBoxGLSupportInfo.o] Error 1
kmk: *** Waiting for unfinished jobs....
```

I figure the include can be changed to `<qt5/QtOpenGL/QGLWidget>`.