114 lines
5.4 KiB
CMake
114 lines
5.4 KiB
CMake
|
|
# Macro to compile a source file to identify the compiler. This is
|
|
# used internally by CMake and should not be included by user code.
|
|
# If successful, sets CMAKE_<lang>_COMPILER_ID and CMAKE_<lang>_PLATFORM_ID
|
|
|
|
MACRO(CMAKE_DETERMINE_COMPILER_ID lang src)
|
|
# Store the compiler identification source file.
|
|
SET(CMAKE_${lang}_COMPILER_ID_SRC "${src}")
|
|
IF(WIN32 AND NOT CYGWIN)
|
|
# This seems to escape spaces:
|
|
#FILE(TO_NATIVE_PATH "${CMAKE_${lang}_COMPILER_ID_SRC}"
|
|
# CMAKE_${lang}_COMPILER_ID_SRC)
|
|
STRING(REGEX REPLACE "/" "\\\\" CMAKE_${lang}_COMPILER_ID_SRC
|
|
"${CMAKE_${lang}_COMPILER_ID_SRC}")
|
|
ENDIF(WIN32 AND NOT CYGWIN)
|
|
|
|
# Make sure user-specified compiler flags are used.
|
|
IF(CMAKE_${lang}_FLAGS)
|
|
SET(CMAKE_${lang}_COMPILER_ID_FLAGS ${CMAKE_${lang}_FLAGS})
|
|
ELSE(CMAKE_${lang}_FLAGS)
|
|
SET(CMAKE_${lang}_COMPILER_ID_FLAGS $ENV{${lang}FLAGS})
|
|
ENDIF(CMAKE_${lang}_FLAGS)
|
|
|
|
# Create an empty directory in which to run the test.
|
|
SET(CMAKE_${lang}_COMPILER_ID_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CompilerId${lang})
|
|
FILE(REMOVE_RECURSE ${CMAKE_${lang}_COMPILER_ID_DIR})
|
|
FILE(MAKE_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR})
|
|
|
|
# Compile the compiler identification source.
|
|
STRING(REGEX REPLACE " " ";" CMAKE_${lang}_COMPILER_ID_FLAGS_LIST "${CMAKE_${lang}_COMPILER_ID_FLAGS}")
|
|
IF(COMMAND EXECUTE_PROCESS)
|
|
EXECUTE_PROCESS(
|
|
COMMAND ${CMAKE_${lang}_COMPILER} ${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST} ${CMAKE_${lang}_COMPILER_ID_SRC}
|
|
WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}
|
|
OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
|
|
ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
|
|
RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT
|
|
)
|
|
ELSE(COMMAND EXECUTE_PROCESS)
|
|
EXEC_PROGRAM(
|
|
${CMAKE_${lang}_COMPILER} ${CMAKE_${lang}_COMPILER_ID_DIR}
|
|
ARGS ${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST} \"${CMAKE_${lang}_COMPILER_ID_SRC}\"
|
|
OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
|
|
RETURN_VALUE CMAKE_${lang}_COMPILER_ID_RESULT
|
|
)
|
|
ENDIF(COMMAND EXECUTE_PROCESS)
|
|
|
|
# Check the result of compilation.
|
|
IF(CMAKE_${lang}_COMPILER_ID_RESULT)
|
|
# Compilation failed.
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"Compiling the ${lang} compiler identification source file \""
|
|
"${CMAKE_${lang}_COMPILER_ID_SRC}\" failed with the following output:\n"
|
|
"${CMAKE_${lang}_COMPILER_ID_RESULT}\n"
|
|
"${CMAKE_${lang}_COMPILER_ID_OUTPUT}\n\n")
|
|
ELSE(CMAKE_${lang}_COMPILER_ID_RESULT)
|
|
# Compilation succeeded.
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"Compiling the ${lang} compiler identification source file \""
|
|
"${CMAKE_${lang}_COMPILER_ID_SRC}\" succeeded with the following output:\n"
|
|
"${CMAKE_${lang}_COMPILER_ID_OUTPUT}\n\n")
|
|
|
|
# Find the executable produced by the compiler.
|
|
SET(CMAKE_${lang}_COMPILER_ID_EXE)
|
|
GET_FILENAME_COMPONENT(CMAKE_${lang}_COMPILER_ID_SRC_BASE ${CMAKE_${lang}_COMPILER_ID_SRC} NAME_WE)
|
|
FOREACH(name a.out a.exe ${CMAKE_${lang}_COMPILER_ID_SRC_BASE}.exe)
|
|
IF(EXISTS ${CMAKE_${lang}_COMPILER_ID_DIR}/${name})
|
|
SET(CMAKE_${lang}_COMPILER_ID_EXE ${CMAKE_${lang}_COMPILER_ID_DIR}/${name})
|
|
ENDIF(EXISTS ${CMAKE_${lang}_COMPILER_ID_DIR}/${name})
|
|
ENDFOREACH(name)
|
|
|
|
# Check if the executable was found.
|
|
IF(CMAKE_${lang}_COMPILER_ID_EXE)
|
|
# The executable was found.
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"Compilation of the ${lang} compiler identification source \""
|
|
"${CMAKE_${lang}_COMPILER_ID_SRC}\" produced \""
|
|
"${CMAKE_${lang}_COMPILER_ID_EXE}\"\n\n")
|
|
|
|
# Read the compiler identification string from the executable file.
|
|
FILE(STRINGS ${CMAKE_${lang}_COMPILER_ID_EXE}
|
|
CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 2 REGEX "INFO:")
|
|
FOREACH(info ${CMAKE_${lang}_COMPILER_ID_STRINGS})
|
|
IF("${info}" MATCHES ".*INFO:compiler\\[(.*)\\].*")
|
|
STRING(REGEX REPLACE ".*INFO:compiler\\[(.*)\\].*" "\\1"
|
|
CMAKE_${lang}_COMPILER_ID "${info}")
|
|
ELSEIF("${info}" MATCHES ".*INFO:platform\\[(.*)\\].*")
|
|
STRING(REGEX REPLACE ".*INFO:platform\\[(.*)\\].*" "\\1"
|
|
CMAKE_${lang}_PLATFORM_ID "${info}")
|
|
ENDIF("${info}" MATCHES ".*INFO:compiler\\[(.*)\\].*")
|
|
ENDFOREACH(info)
|
|
|
|
# Check the compiler identification string.
|
|
IF(CMAKE_${lang}_COMPILER_ID)
|
|
# The compiler identification was found.
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"The ${lang} compiler identification is ${CMAKE_${lang}_COMPILER_ID}\n\n")
|
|
ELSE(CMAKE_${lang}_COMPILER_ID)
|
|
# The compiler identification could not be found.
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"The ${lang} compiler identification could not be found in \""
|
|
"${CMAKE_${lang}_COMPILER_ID_EXE}\"\n\n")
|
|
ENDIF(CMAKE_${lang}_COMPILER_ID)
|
|
ELSE(CMAKE_${lang}_COMPILER_ID_EXE)
|
|
# The executable was not found.
|
|
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"Compilation of the ${lang} compiler identification source \""
|
|
"${CMAKE_${lang}_COMPILER_ID_SRC}\" did not produce an executable in "
|
|
"${CMAKE_${lang}_COMPILER_ID_DIR} "
|
|
"with a name known to CMake.\n\n")
|
|
ENDIF(CMAKE_${lang}_COMPILER_ID_EXE)
|
|
ENDIF(CMAKE_${lang}_COMPILER_ID_RESULT)
|
|
ENDMACRO(CMAKE_DETERMINE_COMPILER_ID)
|