Merge remote-tracking branch 'origin/cmake_remove_ninja_warning' into fix_external_project_ninja

  add_executable(binary2txt ${LAMMPS_TOOLS_DIR}/binary2txt.cpp)

  install(TARGETS binary2txt DESTINATION ${CMAKE_INSTALL_BINDIR})

  # ninja-build currently does not support fortran. thus we skip building this tool

  # ninja-build<1.10 does not support fortran. thus we skip building this tool

  if(CMAKE_GENERATOR STREQUAL "Ninja")

    message(STATUS "Skipping building 'chain.x' with Ninja build tool due to lack of Fortran support")

    set(CMAKE_GENERATOR_SUPPORT_FORTRAN FALSE)

    execute_process(COMMAND "${CMAKE_MAKE_PROGRAM}" --version

      OUTPUT_VARIABLE NINJA_VERSION

      OUTPUT_STRIP_TRAILING_WHITESPACE

      RESULT_VARIABLE _Ninja_version_result

    )

    if(_Ninja_version_result)

      message(WARNING "Unable to determine ninja version: ${_Ninja_version_result}")

    elseif(NINJA_VERSION VERSION_LESS "1.10")

      message(WARNING "Ninja build tool too old, skipping building 'chain.x' due to lack of Fortran support, please install ninja-1.10 or newer")

    else()

      set(CMAKE_GENERATOR_SUPPORT_FORTRAN TRUE)

    endif()

  else()

    set(CMAKE_GENERATOR_SUPPORT_FORTRAN TRUE)

  endif()

  if(CMAKE_GENERATOR_SUPPORT_FORTRAN)

    enable_language(Fortran)

    add_executable(chain.x ${LAMMPS_TOOLS_DIR}/chain.f)

    target_link_libraries(chain.x ${CMAKE_Fortran_IMPLICIT_LINK_LIBRARIES})