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#
# Check if the function exists.
#
# CHECK_FUNCTION_EXISTS - macro which checks if the function exists
# FUNCTION - the name of the function
# VARIABLE - variable to store the result
#
MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
TRY_COMPILE(${VARIABLE}
${PROJECT_BINARY_DIR}
${CMAKE_ROOT}/Modules/CheckFunctionExists.c
COMPILE_DEFINITIONS -DCHECK_FUNCTION_EXISTS=${FUNCTION}
OUTPUT_VARIABLE OUTPUT)
IF(NOT ${VARIABLE})
WRITE_FILE(${PROJECT_BINARY_DIR}/CMakeError.log
"Determining if the function ${FUNCTION} exists failed with the following output:\n"
"${OUTPUT}\n")
ENDIF(NOT ${VARIABLE})
ENDMACRO(CHECK_FUNCTION_EXISTS)
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