add missing header inclusion
CMAKE_INSTALL_FULL_INCLUDEDIR, CMAKE_INSTALL_FULL_LIBDIR used in cmake/Config.cmake.in are defined in GNUInstallDirs.cmake. So an inclusion is necessary. Otherwise, these variables will be set empty in the generated configuration files.
add INTERFACE_INCLUDE_DIRECTORIES to the exported CMake target
CMAKE_INSTALL_FULL_INCLUDEDIR
,CMAKE_INSTALL_FULL_LIBDIR
used incmake/Config.cmake.in
are defined inGNUInstallDirs.cmake
. So an inclusion is necessary. Otherwise, these variables will be set empty in the generated configuration files.