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# Function to compile a source file to identify the compiler ABI.
# This is used internally by CMake and should not be included by user
# code.
FUNCTION(CMAKE_DETERMINE_COMPILER_ABI lang src)
IF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
MESSAGE(STATUS "Detecting ${lang} compiler info")
# Compile the ABI identification source.
SET(BIN "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeDetermineCompilerABI_${lang}.bin")
TRY_COMPILE(CMAKE_DETERMINE_${lang}_ABI_COMPILED
${CMAKE_BINARY_DIR} ${src}
OUTPUT_VARIABLE OUTPUT
COPY_FILE "${BIN}"
)
# Load the resulting information strings.
IF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
MESSAGE(STATUS "Detecting ${lang} compiler info - done")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Detecting ${lang} compiler info compiled with the following output:\n${OUTPUT}\n\n")
FILE(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 2 REGEX "INFO:[^[]*\\[")
FOREACH(info ${ABI_STRINGS})
IF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*")
STRING(REGEX REPLACE ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*" "\\1" ABI_SIZEOF_DPTR "${info}")
ENDIF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*")
IF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*")
STRING(REGEX REPLACE ".*INFO:abi\\[([^]]*)\\].*" "\\1" ABI_NAME "${info}")
ENDIF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*")
ENDFOREACH(info)
IF(ABI_SIZEOF_DPTR)
SET(CMAKE_${lang}_SIZEOF_DATA_PTR "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
SET(CMAKE_SIZEOF_VOID_P "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
ENDIF(ABI_SIZEOF_DPTR)
IF(ABI_NAME)
SET(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE)
SET(CMAKE_INTERNAL_PLATFORM_ABI "${ABI_NAME}" PARENT_SCOPE)
ENDIF(ABI_NAME)
ELSE(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
MESSAGE(STATUS "Detecting ${lang} compiler info - failed")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Detecting ${lang} compiler info failed to compile with the following output:\n${OUTPUT}\n\n")
ENDIF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
ENDIF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ABI)
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