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#
# Checks whether this platform can (1) or cannot(0) do bit-fields greater than
# 32 bits. This is necessary for correct handling of IEEE floating point
# special values.
#
# VARIABLE - variable to store the result to
#
MACRO(CHECK_BIG_BITFIELD VARIABLE LOCAL_TEST_DIR)
IF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
MESSAGE(STATUS "Checking to see if this platform supports large bit-fields (>32 bits)")
TRY_RUN(DUMMY ${VARIABLE}
${CMAKE_BINARY_DIR}
${LOCAL_TEST_DIR}/CheckBigBitfield.c
OUTPUT_VARIABLE OUTPUT)
IF(${VARIABLE})
SET(HAVE_${VARIABLE} TRUE CACHE INTERNAL " ")
MESSAGE(STATUS "Checking to see if this platform supports large bit-fields (>32 bits) - yes")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Checking to see if this platform supports large bit-fields (>32 bits) passed with "
"the following output:\n${OUTPUT}\n\n")
ELSE(${VARIABLE})
MESSAGE(STATUS "Checking to see if this platform supports large bit-fields (>32 bits) - no")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Checking to see if this platform supports large bit-fields (>32 bits) failed with "
"the following output:\n${OUTPUT}\n\n")
ENDIF(${VARIABLE})
ENDIF("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$")
ENDMACRO(CHECK_BIG_BITFIELD)
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