#[=========================================================[
  This is a CMake script file that is used to write
  the contents of a file to stdout (using the cmake
  echo command). The input file is passed via the
  IN_FILE variable.
#]=========================================================]

if (EXISTS ${IN_FILE})
  file (READ ${IN_FILE} contents)
  ## only print files that actually have some text in them
  if (contents MATCHES "[a-z0-9A-Z]+")
    execute_process(
      COMMAND
        ${CMAKE_COMMAND} -E echo "${contents}")
  endif ()
endif ()