qdoc errors for QtCMake

Scanning dependencies of target generate_top_level_docs_CMakeDoc
qt.qdoc: Start qdoc for QtCMake in dual process mode: generate phase.
qdoc: warning: "QtCMake" Cannot locate index file for dependency "qtremoteobjects"
qt.qdoc: No include paths passed to qdoc; guessing reasonable include paths
qt.qdoc: Parse source files for "QtCMake"
qt.qdoc: Source files parsed for "QtCMake"
/home/qt/qt5/qtdoc/doc/src/cmake/cmake-manual.qdoc:75: (qdoc) warning: Can't link to 'Qt Designer'
/home/qt/qt5/qtdoc/doc/src/cmake/cmake-manual.qdoc:75: (qdoc) warning: Can't link to 'Qt Resource System'
/home/qt/qt5/qtdoc/doc/src/cmake/cmake-manual.qdoc:75: (qdoc) warning: Can't link to 'qmake'
/home/qt/qt5/qtdoc/doc/src/cmake/cmake-manual.qdoc:214: (qdoc) warning: Can't link to 'qt_add_translation'
qt.qdoc: End qdoc for QtCMake in dual process mode: generate phase.