Autogen: Add (CMAKE_)AUTOGEN_ORIGIN_DEPENDS documentation

2 files changed, 35 insertions, 3 deletions

diff --git a/Help/prop_tgt/AUTOGEN_ORIGIN_DEPENDS.rst b/Help/prop_tgt/AUTOGEN_ORIGIN_DEPENDS.rst
new file mode 100644
index 0000000..f61089a
--- /dev/null
+++ b/Help/prop_tgt/AUTOGEN_ORIGIN_DEPENDS.rst
@@ -0,0 +1,26 @@
+AUTOGEN_ORIGIN_DEPENDS
+----------------------
+
+Switch for forwarding origin target dependencies to the corresponding
+``_autogen`` target.
+
+Targets which have their :prop_tgt:`AUTOMOC` or :prop_tgt:`AUTOUIC` property
+``ON`` have a corresponding ``_autogen`` target which is used to auto generate
+``moc`` and ``uic`` files.  As this ``_autogen`` target is created at
+generate-time, it is not possible to define dependencies of it,
+such as to create inputs for the ``moc`` or ``uic`` executable.
+
+The dependencies of the ``_autogen`` target are composed from
+
+- the origin target dependencies
+  (by default enabled via :prop_tgt:`AUTOGEN_ORIGIN_DEPENDS`)
+- user defined dependencies from :prop_tgt:`AUTOGEN_TARGET_DEPENDS`
+
+:prop_tgt:`AUTOGEN_ORIGIN_DEPENDS` decides whether the origin target
+dependencies should be forwarded to the ``_autogen`` target or not.
+
+By default :prop_tgt:`AUTOGEN_ORIGIN_DEPENDS` is initialized from
+:variable:`CMAKE_AUTOGEN_ORIGIN_DEPENDS` which is ``ON`` by default.
+
+See the :manual:`cmake-qt(7)` manual for more information on using CMake
+with Qt.
diff --git a/Help/prop_tgt/AUTOGEN_TARGET_DEPENDS.rst b/Help/prop_tgt/AUTOGEN_TARGET_DEPENDS.rst
index 7d3dfd1..84c2bfe 100644
--- a/Help/prop_tgt/AUTOGEN_TARGET_DEPENDS.rst
+++ b/Help/prop_tgt/AUTOGEN_TARGET_DEPENDS.rst
@@ -9,9 +9,15 @@ Targets which have their :prop_tgt:`AUTOMOC` or :prop_tgt:`AUTOUIC` property
 generate-time, it is not possible to define dependencies of it,
 such as to create inputs for the ``moc`` or ``uic`` executable.
 
-The :prop_tgt:`AUTOGEN_TARGET_DEPENDS` target property can be set instead to a
-list of dependencies of the ``_autogen`` target.  Dependencies can be target
-names or file names.
+The dependencies of the ``_autogen`` target are composed from
+
+- the origin target dependencies
+  (by default enabled via :prop_tgt:`AUTOGEN_ORIGIN_DEPENDS`)
+- user defined dependencies from :prop_tgt:`AUTOGEN_TARGET_DEPENDS`
+
+The :prop_tgt:`AUTOGEN_TARGET_DEPENDS` target property can be set to a
+list of additional dependencies for the ``_autogen`` target.  Dependencies
+can be target names or file names.
 
 See the :manual:`cmake-qt(7)` manual for more information on using CMake
 with Qt.