Modules/TestBigEndian.cmake

   1 #
   2 # Check if the system is big endian or little endian
   3 #
   4 # VARIABLE - variable to store the result to
   5 #
   6
   7 MACRO(TEST_BIG_ENDIAN VARIABLE)
   8   IF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
   9     TRY_RUN(${VARIABLE} HAVE_${VARIABLE}
  10       ${CMAKE_BINARY_DIR}
  11       ${CMAKE_ROOT}/Modules/TestBigEndian.c
  12       OUTPUT_VARIABLE OUTPUT)
  13     IF(${VARIABLE} STREQUAL "FAILED_TO_RUN")
  14       MESSAGE(SEND_ERROR "TestBigEndian Failed to run with output: ${OUTPUT}")
  15     ENDIF(${VARIABLE} STREQUAL "FAILED_TO_RUN")
  16     MESSAGE(STATUS "Check if the system is big endian")
  17     IF(HAVE_${VARIABLE})
  18       FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
  19         "Determining the endianes of the system passed. The system is ")
  20       IF(${VARIABLE})
  21         FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
  22           "big endian")
  23         MESSAGE(STATUS "Check if the system is big endian - big endian")
  24       ELSE(${VARIABLE})
  25         FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
  26           "little endian")
  27         MESSAGE(STATUS "Check if the system is big endian - little endian")
  28       ENDIF(${VARIABLE})
  29       FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
  30         "Test produced following output:\n${OUTPUT}\n\n")
  31     ELSE(HAVE_${VARIABLE})
  32       FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeError.log
  33         "Determining the endianes of the system failed with the following output:\n${OUTPUT}\n\n")
  34       MESSAGE("Check if the system is big endian - failed")
  35     ENDIF(HAVE_${VARIABLE})
  36   ENDIF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
  37 ENDMACRO(TEST_BIG_ENDIAN)