ADD_DEFINITIONS(-DBuild64)

IF ("${FC_FN_UNDERSCORE}" STREQUAL "UNDER")
  ADD_DEFINITIONS(-DADDC_)
ENDIF()

IF ("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
  SET(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fcray-pointer -fdefault-real-8 -fdefault-integer-8 -fno-range-check")
ELSEIF ("${CMAKE_Fortran_COMPILER_ID}" MATCHES "XL")
  SET(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -qintsize=8 -qrealsize=8")
ELSEIF ("${CMAKE_Fortran_COMPILER_ID}" MATCHES "Cray")
  SET(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -sdefault64")
ELSE()
  SET(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -i8")
ENDIF()