CMake/Modules/CMakeDetermineCompilerABI.cmake
Brad King efaf335bf2 BUG: Skip implicit link information on Xcode
Xcode adds extra link directories that point at the build tree, so
detection of implicit link directories is not reliable.  Since Fortran
is not supported in Xcode we will not need implicit link information yet
anyway.
2009-07-23 16:19:29 -04:00

64 lines
3.0 KiB
CMake

# 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.
INCLUDE(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
FUNCTION(CMAKE_DETERMINE_COMPILER_ABI lang src)
IF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
MESSAGE(STATUS "Detecting ${lang} compiler ABI info")
# Compile the ABI identification source.
SET(BIN "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeDetermineCompilerABI_${lang}.bin")
TRY_COMPILE(CMAKE_DETERMINE_${lang}_ABI_COMPILED
${CMAKE_BINARY_DIR} ${src}
CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS=${CMAKE_${lang}_VERBOSE_FLAG}"
"-DCMAKE_${lang}_STANDARD_LIBRARIES="
OUTPUT_VARIABLE OUTPUT
COPY_FILE "${BIN}"
)
# Load the resulting information strings.
IF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
MESSAGE(STATUS "Detecting ${lang} compiler ABI info - done")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Detecting ${lang} compiler ABI info compiled with the following output:\n${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 "${ABI_NAME}" PARENT_SCOPE)
ENDIF(ABI_NAME)
# Parse implicit linker information for this language, if available.
# Skip this with Xcode for now.
SET(implicit_dirs "")
SET(implicit_libs "")
IF(CMAKE_${lang}_VERBOSE_FLAG AND NOT "${CMAKE_GENERATOR}" MATCHES Xcode)
CMAKE_PARSE_IMPLICIT_LINK_INFO("${OUTPUT}" implicit_libs implicit_dirs)
ENDIF()
SET(CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES "${implicit_libs}" PARENT_SCOPE)
SET(CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES "${implicit_dirs}" PARENT_SCOPE)
ELSE(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
MESSAGE(STATUS "Detecting ${lang} compiler ABI info - failed")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Detecting ${lang} compiler ABI info failed to compile with the following output:\n${OUTPUT}\n\n")
ENDIF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
ENDIF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ABI)