diff options
Diffstat (limited to 'Modules/CMakeDetermineCXXCompiler.cmake')
-rw-r--r-- | Modules/CMakeDetermineCXXCompiler.cmake | 90 |
1 files changed, 42 insertions, 48 deletions
diff --git a/Modules/CMakeDetermineCXXCompiler.cmake b/Modules/CMakeDetermineCXXCompiler.cmake index c79ba898d..9150962d9 100644 --- a/Modules/CMakeDetermineCXXCompiler.cmake +++ b/Modules/CMakeDetermineCXXCompiler.cmake @@ -1,16 +1,6 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. -#============================================================================= -# Copyright 2002-2009 Kitware, Inc. -# -# 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.) # determine the compiler to use for C++ programs # NOTE, a generator may set CMAKE_CXX_COMPILER before @@ -33,6 +23,7 @@ include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake) # Load system-specific compiler preferences for this language. +include(Platform/${CMAKE_SYSTEM_NAME}-Determine-CXX OPTIONAL) include(Platform/${CMAKE_SYSTEM_NAME}-CXX OPTIONAL) if(NOT CMAKE_CXX_COMPILER_NAMES) set(CMAKE_CXX_COMPILER_NAMES CC) @@ -41,12 +32,13 @@ endif() if(${CMAKE_GENERATOR} MATCHES "Visual Studio") elseif("${CMAKE_GENERATOR}" MATCHES "Xcode") set(CMAKE_CXX_COMPILER_XCODE_TYPE sourcecode.cpp.cpp) + _cmake_find_compiler_path(CXX) else() if(NOT CMAKE_CXX_COMPILER) set(CMAKE_CXX_COMPILER_INIT NOTFOUND) # prefer the environment variable CXX - if($ENV{CXX} MATCHES ".+") + if(NOT $ENV{CXX} STREQUAL "") get_filename_component(CMAKE_CXX_COMPILER_INIT $ENV{CXX} PROGRAM PROGRAM_ARGS CMAKE_CXX_FLAGS_ENV_INIT) if(CMAKE_CXX_FLAGS_ENV_INIT) set(CMAKE_CXX_COMPILER_ARG1 "${CMAKE_CXX_FLAGS_ENV_INIT}" CACHE STRING "First argument to CXX compiler") @@ -70,38 +62,14 @@ else() _cmake_find_compiler(CXX) else() - - # we only get here if CMAKE_CXX_COMPILER was specified using -D or a pre-made CMakeCache.txt - # (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE - # - # if CMAKE_CXX_COMPILER is a list of length 2, use the first item as - # CMAKE_CXX_COMPILER and the 2nd one as CMAKE_CXX_COMPILER_ARG1 - - list(LENGTH CMAKE_CXX_COMPILER _CMAKE_CXX_COMPILER_LIST_LENGTH) - if("${_CMAKE_CXX_COMPILER_LIST_LENGTH}" EQUAL 2) - list(GET CMAKE_CXX_COMPILER 1 CMAKE_CXX_COMPILER_ARG1) - list(GET CMAKE_CXX_COMPILER 0 CMAKE_CXX_COMPILER) - endif() - - # if a compiler was specified by the user but without path, - # now try to find it with the full path - # if it is found, force it into the cache, - # if not, don't overwrite the setting (which was given by the user) with "NOTFOUND" - # if the CXX compiler already had a path, reuse it for searching the C compiler - get_filename_component(_CMAKE_USER_CXX_COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH) - if(NOT _CMAKE_USER_CXX_COMPILER_PATH) - find_program(CMAKE_CXX_COMPILER_WITH_PATH NAMES ${CMAKE_CXX_COMPILER}) - mark_as_advanced(CMAKE_CXX_COMPILER_WITH_PATH) - if(CMAKE_CXX_COMPILER_WITH_PATH) - set(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER_WITH_PATH} CACHE STRING "CXX compiler" FORCE) - endif() - endif() + _cmake_find_compiler_path(CXX) endif() mark_as_advanced(CMAKE_CXX_COMPILER) # Each entry in this list is a set of extra flags to try # adding to the compile line to see if it helps produce # a valid identification file. + set(CMAKE_CXX_COMPILER_ID_TEST_FLAGS_FIRST) set(CMAKE_CXX_COMPILER_ID_TEST_FLAGS # Try compiling to an object file only. "-c" @@ -114,25 +82,34 @@ if(NOT CMAKE_CXX_COMPILER_ID_RUN) # Try to identify the compiler. set(CMAKE_CXX_COMPILER_ID) + set(CMAKE_CXX_PLATFORM_ID) file(READ ${CMAKE_ROOT}/Modules/CMakePlatformId.h.in CMAKE_CXX_COMPILER_ID_PLATFORM_CONTENT) # The IAR compiler produces weird output. - # See http://www.cmake.org/Bug/view.php?id=10176#c19598 + # See https://gitlab.kitware.com/cmake/cmake/issues/10176#note_153591 list(APPEND CMAKE_CXX_COMPILER_ID_VENDORS IAR) set(CMAKE_CXX_COMPILER_ID_VENDOR_FLAGS_IAR ) set(CMAKE_CXX_COMPILER_ID_VENDOR_REGEX_IAR "IAR .+ Compiler") + # Match the link line from xcodebuild output of the form + # Ld ... + # ... + # /path/to/cc ...CompilerIdCXX/... + # to extract the compiler front-end for the language. + set(CMAKE_CXX_COMPILER_ID_TOOL_MATCH_REGEX "\nLd[^\n]*(\n[ \t]+[^\n]*)*\n[ \t]+([^ \t\r\n]+)[^\r\n]*-o[^\r\n]*CompilerIdCXX/(\\./)?(CompilerIdCXX.xctest/)?CompilerIdCXX[ \t\n\\\"]") + set(CMAKE_CXX_COMPILER_ID_TOOL_MATCH_INDEX 2) + include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake) CMAKE_DETERMINE_COMPILER_ID(CXX CXXFLAGS CMakeCXXCompilerId.cpp) # Set old compiler and platform id variables. - if("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") + if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU") set(CMAKE_COMPILER_IS_GNUCXX 1) endif() - if("${CMAKE_CXX_PLATFORM_ID}" MATCHES "MinGW") + if(CMAKE_CXX_PLATFORM_ID MATCHES "MinGW") set(CMAKE_COMPILER_IS_MINGW 1) - elseif("${CMAKE_CXX_PLATFORM_ID}" MATCHES "Cygwin") + elseif(CMAKE_CXX_PLATFORM_ID MATCHES "Cygwin") set(CMAKE_COMPILER_IS_CYGWIN 1) endif() endif() @@ -145,17 +122,25 @@ endif () # e.g. powerpc-linux-g++, arm-elf-g++ or i586-mingw32msvc-g++ , optionally # with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2). # The other tools of the toolchain usually have the same prefix -# NAME_WE cannot be used since then this test will fail for names lile +# NAME_WE cannot be used since then this test will fail for names like # "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be # "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-" if (CMAKE_CROSSCOMPILING AND NOT _CMAKE_TOOLCHAIN_PREFIX) - if("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") + if("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") get_filename_component(COMPILER_BASENAME "${CMAKE_CXX_COMPILER}" NAME) - if (COMPILER_BASENAME MATCHES "^(.+-)[gc]\\+\\+(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$") + if (COMPILER_BASENAME MATCHES "^(.+-)(clan)?[gc]\\+\\+(-[0-9]+\\.[0-9]+\\.[0-9]+)?(\\.exe)?$") set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1}) + elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") + if(CMAKE_CXX_COMPILER_TARGET) + set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_CXX_COMPILER_TARGET}-) + endif() + elseif(COMPILER_BASENAME MATCHES "QCC(\\.exe)?$") + if(CMAKE_CXX_COMPILER_TARGET MATCHES "gcc_nto([^_le]+)(le)?") + set(_CMAKE_TOOLCHAIN_PREFIX nto${CMAKE_MATCH_1}-) + endif() endif () # if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils @@ -175,16 +160,25 @@ if (CMAKE_CROSSCOMPILING AND NOT _CMAKE_TOOLCHAIN_PREFIX) endif () -include(${CMAKE_ROOT}/Modules/CMakeClDeps.cmake) include(CMakeFindBinUtils) +set(_CMAKE_PROCESSING_LANGUAGE "CXX") +include(Compiler/${CMAKE_CXX_COMPILER_ID}-FindBinUtils OPTIONAL) +unset(_CMAKE_PROCESSING_LANGUAGE) + if(MSVC_CXX_ARCHITECTURE_ID) set(SET_MSVC_CXX_ARCHITECTURE_ID "set(MSVC_CXX_ARCHITECTURE_ID ${MSVC_CXX_ARCHITECTURE_ID})") endif() + +if(CMAKE_CXX_XCODE_CURRENT_ARCH) + set(SET_CMAKE_XCODE_CURRENT_ARCH + "set(CMAKE_XCODE_CURRENT_ARCH ${CMAKE_CXX_XCODE_CURRENT_ARCH})") +endif() + # configure all variables set in this file configure_file(${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in ${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake - @ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0 + @ONLY ) set(CMAKE_CXX_COMPILER_ENV_VAR "CXX") |