Guide: Recommend -C for IDE presets instead of -D

Issue: #23083

Help/guide/ide-integration/index.rst

@@ -65,6 +65,12 @@ run:
 
   cmake -S /path/to/source -B /path/to/source/build -G Ninja
 
+In cases where a preset contains lots of cache variables, and passing all of
+them as ``-D`` flags would cause the command line length limit of the platform
+to be exceeded, the IDE should instead construct a temporary cache script and
+pass it with the ``-C`` flag. See :ref:`CMake Options` for details on how the
+``-C`` flag is used.
+
 While reading, parsing, and evaluating the contents of ``CMakePresets.json`` is
 straightforward, it is not trivial. In addition to the documentation, IDE
 vendors may also wish to refer to the CMake source code and test cases for a