Help: Note that COMPATIBLE_INTERFACE_ properties may be origin-debugged.

Link to other properties mentioned in the docs already.

Help/variable/CMAKE_DEBUG_TARGET_PROPERTIES.rst

@@ -5,7 +5,9 @@ Enables tracing output for target properties.
 
 This variable can be populated with a list of properties to generate
 debug output for when evaluating target properties.  Currently it can
-only be used when evaluating the INCLUDE_DIRECTORIES,
-COMPILE_DEFINITIONS, COMPILE_OPTIONS and AUTOUIC_OPTIONS target properties.
-In that case, it outputs a backtrace for each entry in the target property.
+only be used when evaluating the :prop_tgt:`INCLUDE_DIRECTORIES`,
+:prop_tgt:`COMPILE_DEFINITIONS`, :prop_tgt:`COMPILE_OPTIONS`, :prop_tgt:`AUTOUIC_OPTIONS`,
+:prop_tgt:`POSITION_INDEPENDENT_CODE` target properties and any other property
+listed in :prop_tgt:`COMPATIBLE_INTERFACE_STRING` and other ``COMPATIBLE_INTERFACE_``
+properties.  It outputs an origin for each entry in the target property.
 Default is unset.