CMake/Modules/CheckFunctionExists.cmake

23 lines
797 B
CMake

#
# Check if the type exists and determine size of type. if the type
# exists, the size will be stored to the variable.
#
# CHECK_TYPE_SIZE - macro which checks the size of type
# VARIABLE - variable to store size if the type exists.
#
MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
TRY_COMPILE(COMPILE_OK
${PROJECT_BINARY_DIR}
${CMAKE_ROOT}/Modules/CheckFunctionExists.c
COMPILE_DEFINITIONS -DCHECK_FUNCTION_EXISTS=${FUNCTION}
OUTPUT_VARIABLE OUTPUT)
IF(COMPILE_OK)
SET(${VARIABLE} ${COMPILE_OK})
ELSE(COMPILE_OK)
WRITE_FILE(${PROJECT_BINARY_DIR}/CMakeError.log
"Determining if the function ${FUNCTION} exists failed with the following output:\n"
"${OUTPUT}\n")
ENDIF(COMPILE_OK)
ENDMACRO(CHECK_FUNCTION_EXISTS)