CMake: Update section on required CMake versions

Change-Id: I6c556cd3a2e8bdf87b3c7c6ef62a6af6bdbe7137
Reviewed-by: Alexey Edelev <[email protected]>
Reviewed-by: Craig Scott <[email protected]>
Reviewed-by: Alexandru Croitor <[email protected]>

cmake/README.md

@@ -9,7 +9,15 @@ https://wiki.qt.io/Building_Qt_6_from_Git
 * You need CMake 3.16.0 or later for most platforms (due to new AUTOMOC json feature).
 * You need CMake 3.17.0 to build Qt for iOS with the simulator_and_device feature.
 * You need CMake 3.17.0 + Ninja to build Qt in debug_and_release mode on Windows / Linux.
-* You need CMake 3.18.0 + Ninja to build Qt on macOS in debug_and_release mode when using frameworks.
+* You need CMake 3.18.0 + Ninja to build Qt on macOS in debug_and_release mode when using
+    frameworks.
+* You need CMake 3.18.0 in user projects that use a static Qt together with QML
+    (cmake_language EVAL is required for running the qmlimportscanner deferred finalizer)
+* You need CMake 3.19.0 in user projects to use automatic deferred finalizers
+    (automatic calling of qt_finalize_target)
+* You need CMake 3.21.0 in user projects that create user libraries that link against a static Qt
+    with a linker that is not capable to resolve circular dependencies between libraries
+    (GNU ld, MinGW ld)
 
 # Changes to Qt 5