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#=============================================================================
# Copyright 2014 Stephen Kelly <steveire@gmail.com>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
function(_readFile file)
include(${file})
get_filename_component(name ${file} NAME_WE)
string(REGEX REPLACE "-.*" "" CompilerId ${name})
set(_compiler_id_version_compute_${CompilerId} ${_compiler_id_version_compute} PARENT_SCOPE)
set(_compiler_id_pp_test_${CompilerId} ${_compiler_id_pp_test} PARENT_SCOPE)
endfunction()
include(${CMAKE_CURRENT_LIST_DIR}/CMakeParseArguments.cmake)
function(compiler_id_detection outvar lang)
file(GLOB lang_files
"${CMAKE_ROOT}/Modules/Compiler/*-${lang}-DetermineCompiler.cmake")
if (NOT lang STREQUAL Fortran)
file(GLOB non_lang_files
"${CMAKE_ROOT}/Modules/Compiler/*-DetermineCompiler.cmake")
endif()
set(files ${lang_files} ${non_lang_files})
if (files)
foreach(file ${files})
_readFile(${file})
endforeach()
set(options ID_STRING VERSION_STRINGS ID_DEFINE PLATFORM_DEFAULT_COMPILER)
set(oneValueArgs PREFIX)
cmake_parse_arguments(CID "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if (CID_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unrecognized arguments: \"${CID_UNPARSED_ARGUMENTS}\"")
endif()
set(ordered_compilers
# Order is relevant here. For example, compilers which pretend to be
# GCC must appear before the actual GCC.
Comeau
Intel
PathScale
AppleClang
Clang
Embarcadero
Borland
Watcom
OpenWatcom
SunPro
HP
Compaq
zOS
XL
VisualAge
PGI
Cray
TI
SCO
GNU
MSVC
ADSP
IAR
MIPSpro)
if(CID_ID_DEFINE)
foreach(Id ${ordered_compilers})
set(CMAKE_${lang}_COMPILER_ID_CONTENT "${CMAKE_${lang}_COMPILER_ID_CONTENT}# define ${CID_PREFIX}COMPILER_IS_${Id} 0\n")
endforeach()
endif()
set(pp_if "#if")
if (CID_VERSION_STRINGS)
set(CMAKE_${lang}_COMPILER_ID_CONTENT "${CMAKE_${lang}_COMPILER_ID_CONTENT}\n/* Version number components: V=Version, R=Revision, P=Patch
Version date components: YYYY=Year, MM=Month, DD=Day */\n")
endif()
foreach(Id ${ordered_compilers})
if (NOT _compiler_id_pp_test_${Id})
message(FATAL_ERROR "No preprocessor test for \"${Id}\"")
endif()
set(id_content "${pp_if} ${_compiler_id_pp_test_${Id}}\n")
if (CID_ID_STRING)
set(id_content "${id_content}# define ${CID_PREFIX}COMPILER_ID \"${Id}\"")
endif()
if (CID_ID_DEFINE)
set(id_content "${id_content}# undef ${CID_PREFIX}COMPILER_IS_${Id}\n")
set(id_content "${id_content}# define ${CID_PREFIX}COMPILER_IS_${Id} 1\n")
endif()
if (CID_VERSION_STRINGS)
set(PREFIX ${CID_PREFIX})
string(CONFIGURE "${_compiler_id_version_compute_${Id}}" VERSION_BLOCK @ONLY)
set(id_content "${id_content}${VERSION_BLOCK}\n")
endif()
set(CMAKE_${lang}_COMPILER_ID_CONTENT "${CMAKE_${lang}_COMPILER_ID_CONTENT}\n${id_content}")
set(pp_if "#elif")
endforeach()
if (CID_PLATFORM_DEFAULT_COMPILER)
set(platform_compiler_detection "
/* These compilers are either not known or too old to define an
identification macro. Try to identify the platform and guess that
it is the native compiler. */
#elif defined(__sgi)
# define ${CID_PREFIX}COMPILER_ID \"MIPSpro\"
#elif defined(__hpux) || defined(__hpua)
# define ${CID_PREFIX}COMPILER_ID \"HP\"
#else /* unknown compiler */
# define ${CID_PREFIX}COMPILER_ID \"\"")
endif()
set(CMAKE_${lang}_COMPILER_ID_CONTENT "${CMAKE_${lang}_COMPILER_ID_CONTENT}\n${platform_compiler_detection}\n#endif")
endif()
set(${outvar} ${CMAKE_${lang}_COMPILER_ID_CONTENT} PARENT_SCOPE)
endfunction()
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