QT6 qtbase build fails claiming symlinks are present

Hi,

CMakeLists.txt in qtbase attempts to look for symlinks and halts if they are found. See the lines:

 get_filename_component(build_dir_absolute "${CMAKE_BINARY_DIR}" ABSOLUTE)
 get_filename_component(build_dir_realpath "${CMAKE_BINARY_DIR}" REALPATH)
 if(NOT build_dir_absolute STREQUAL build_dir_realpath)
 message(FATAL_ERROR "The build path \"${CMAKE_BINARY_DIR}\" contains symlinks. \
 ...

The problem is that one path can contain 'Qt' and one can contain 'qt'. For example my build failed because one was

/Users/myname/Qt/6.2.2/Src

and the other

/Users/myname/qt/6.2.2/Src

In my situation there are no symlinks present and I had to rename my qt directory to Qt to make the build work; using

mv qt Qt

I don't know why one path would have Qt when the real path was qt, but the renaming worked. A quick search on the Qt Forum shows at least one other user having problems with this symlink check.

Can I suggest making the test case-insensitive OR maybe changing path references (in the build system) to always use qt instead of Qt.

 I'm a commercial licensee downloading source through the online installer and then building from source (with some patches applied).