See also: CppSourceDependTask.cpp
(c) 2005 byRoger Rene Kommer
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Inheritance diagram for acdk::make::CppSourceDependTask:
returns true if target exists and is not older thant source
Reimplemented from acdk::make::AbstractTask.
Check only files which are included #enclude OtherFile.h or #enclude ../src/OtherFile.h ignore all #enclude <OtherFile.h>.
Parse also found include files.
If false only the directly included files are checked.