if (WITH_LIBMETAL_FIND)
  find_package (Libmetal REQUIRED)
  collect (PROJECT_INC_DIRS "${LIBMETAL_INCLUDE_DIR}")
  collect (PROJECT_LIB_DIRS "${LIBMETAL_LIB_DIR}")
  collect (PROJECT_LIB_DEPS "${LIBMETAL_LIB}")
endif (WITH_LIBMETAL_FIND)

if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
  check_include_files (stdatomic.h HAVE_STDATOMIC_H)
  check_include_files (fcntl.h HAVE_FCNTL_H)
else ("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
  set (_saved_cmake_required_flags ${CMAKE_REQUIRED_FLAGS})
  set (CMAKE_REQUIRED_FLAGS "-c")
  check_include_files (stdatomic.h HAVE_STDATOMIC_H)
  check_include_files (fcntl.h HAVE_FCNTL_H)
  set (CMAKE_REQUIRED_FLAGS ${_saved_cmake_required_flags})
endif ("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")

if (NOT HAVE_FCNTL_H)
  unset (WITH_PROXY CACHE)
endif (NOT HAVE_FCNTL_H)

# vim: expandtab:ts=2:sw=2:smartindent