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# - Define macro to determine endian type
# Check if the system is big endian or little endian
# TEST_BIG_ENDIAN(VARIABLE)
# VARIABLE - variable to store the result to
#
MACRO(TEST_BIG_ENDIAN VARIABLE)
IF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
TRY_RUN(${VARIABLE} HAVE_${VARIABLE}
${CMAKE_BINARY_DIR}
${CMAKE_ROOT}/Modules/TestBigEndian.c
OUTPUT_VARIABLE OUTPUT)
IF("${VARIABLE}" STREQUAL "FAILED_TO_RUN")
MESSAGE(SEND_ERROR "TestBigEndian Failed to run with output: ${OUTPUT}")
ENDIF("${VARIABLE}" STREQUAL "FAILED_TO_RUN")
MESSAGE(STATUS "Check if the system is big endian")
IF(HAVE_${VARIABLE})
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"Determining the endianes of the system passed. The system is ")
IF(${VARIABLE})
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"big endian")
MESSAGE(STATUS "Check if the system is big endian - big endian")
ELSE(${VARIABLE})
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"little endian")
MESSAGE(STATUS "Check if the system is big endian - little endian")
ENDIF(${VARIABLE})
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"Test produced following output:\n${OUTPUT}\n\n")
ELSE(HAVE_${VARIABLE})
FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
"Determining the endianes of the system failed with the following output:\n${OUTPUT}\n\n")
MESSAGE("Check if the system is big endian - failed")
ENDIF(HAVE_${VARIABLE})
ENDIF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
ENDMACRO(TEST_BIG_ENDIAN)
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