cmTargetPropertyComputer: whitelist 'MANUALLY_ADDED_DEPENDENCIES'.

Help/manual/cmake-buildsystem.7.rst

@@ -978,6 +978,7 @@ are:
 * Built-in properties matching ``COMPATIBLE_INTERFACE_*``
 * ``EXPORT_NAME``
 * ``IMPORTED``
+* ``MANUALLY_ADDED_DEPENDENCIES``
 * ``NAME``
 * Properties matching ``IMPORTED_LIBNAME_*``
 * Properties matching ``MAP_IMPORTED_CONFIG_*``

Source/cmTargetPropertyComputer.cxx

@@ -65,6 +65,7 @@ bool cmTargetPropertyComputer::WhiteListedInterfaceProperty(
     builtIns.insert("EXPORT_NAME");
     builtIns.insert("IMPORTED");
     builtIns.insert("IMPORTED_GLOBAL");
+    builtIns.insert("MANUALLY_ADDED_DEPENDENCIES");
     builtIns.insert("NAME");
     builtIns.insert("TYPE");
   }

Tests/InterfaceLibrary/CMakeLists.txt

@@ -31,6 +31,7 @@ add_library(item_real STATIC item.cpp)
 add_library(item_iface INTERFACE IMPORTED)
 set_property(TARGET item_iface PROPERTY IMPORTED_LIBNAME item_real)
 add_dependencies(item_iface item_real)
+get_property(item_iface_dependencies TARGET item_iface PROPERTY MANUALLY_ADDED_DEPENDENCIES)
 link_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 add_executable(InterfaceLibrary definetestexe.cpp)