IF(NOT DEFINED CMAKE_TEST_SC_NPROCESSORS)
  MESSAGE(STATUS "sysconf() support for _SC_NPROCESSORS_CONF")
  TRY_COMPILE(CMAKE_TEST_SC_NPROCESSORS
    ${CMAKE_BINARY_DIR}
    ${CMAKE_CURRENT_LIST_DIR}/TestSCNProcessors.c
    OUTPUT_VARIABLE OUTPUT)
  IF(CMAKE_TEST_SC_NPROCESSORS)
    MESSAGE(STATUS "sysconf() supports _SC_NPROCESSORS_CONF  - found")
    SET(HAVE_SC_NPROCESSORS_CONF 1 CACHE INTERNAL
	"sysconf() _SC_NPROCESSORS_CONF")
    FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log
      "Determining sysconf() support for _SC_NPROCESSORS_CONF "
      "succeeded:\n${OUTPUT}\n\n")
  ELSE(CMAKE_TEST_SC_NPROCESSORS)
    MESSAGE(STATUS "sysconf() supports _SC_NPROCESSORS_CONF  - not found")
  ENDIF(CMAKE_TEST_SC_NPROCESSORS)
ENDIF(NOT DEFINED CMAKE_TEST_SC_NPROCESSORS)