if (ENABLE_MAINTAINER_FLAGS AND NOT MSVC AND NOT MONGOC_MAINTAINER_FLAGS_SET)
   include (CheckCCompilerFlag)

   message (STATUS "Detecting available maintainer flags")
   file (READ "build/maintainer-flags.txt" MAINTAINER_FLAGS)

   # Convert file contents into a CMake list (where each element in the list
   # is one line of the file)
   #
   string (REGEX REPLACE ";" "\\\\;" MAINTAINER_FLAGS "${MAINTAINER_FLAGS}")
   string (REGEX REPLACE "\n" ";" MAINTAINER_FLAGS "${MAINTAINER_FLAGS}")

   foreach (MAINTAINER_FLAG ${MAINTAINER_FLAGS})
      # Avoid useless "Performing Test FLAG_OK" message.
      set (CMAKE_REQUIRED_QUIET 1)
      check_c_compiler_flag ("${MAINTAINER_FLAG}" FLAG_OK)
      set (CMAKE_REQUIRED_QUIET 0)
      if (FLAG_OK)
         message (STATUS "C compiler accepts ${MAINTAINER_FLAG}")
         set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MAINTAINER_FLAG}")
      else ()
         message (STATUS "C compiler does not accept ${MAINTAINER_FLAG}")
      endif ()
      unset (FLAG_OK CACHE)
   endforeach ()

   message (STATUS "Maintainer flags: ${CMAKE_C_FLAGS}")
   set (MONGOC_MAINTAINER_FLAGS_SET 1)
endif ()