PRECOMPILE_HEADERS ------------------ .. versionadded:: 3.16 List of header files to precompile. This property holds a :ref:`semicolon-separated list <CMake Language Lists>` of header files to precompile specified so far for its target. Use the :command:`target_precompile_headers` command to append more header files. This property supports :manual:`generator expressions <cmake-generator-expressions(7)>`.