You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
190 lines
7.3 KiB
190 lines
7.3 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
|
|
# determine the compiler to use for Objective-C programs
|
|
# NOTE, a generator may set CMAKE_OBJC_COMPILER before
|
|
# loading this file to force a compiler.
|
|
# use environment variable OBJC first if defined by user, next use
|
|
# the cmake variable CMAKE_GENERATOR_OBJC which can be defined by a generator
|
|
# as a default compiler
|
|
#
|
|
# Sets the following variables:
|
|
# CMAKE_OBJC_COMPILER
|
|
# CMAKE_AR
|
|
# CMAKE_RANLIB
|
|
# CMAKE_COMPILER_IS_GNUOBJC
|
|
# CMAKE_COMPILER_IS_CLANGOBJC
|
|
#
|
|
# If not already set before, it also sets
|
|
# _CMAKE_TOOLCHAIN_PREFIX
|
|
|
|
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
|
|
|
|
# Load system-specific compiler preferences for this language.
|
|
include(Platform/${CMAKE_SYSTEM_NAME}-Determine-OBJC OPTIONAL)
|
|
include(Platform/${CMAKE_SYSTEM_NAME}-OBJC OPTIONAL)
|
|
if(NOT CMAKE_OBJC_COMPILER_NAMES)
|
|
set(CMAKE_OBJC_COMPILER_NAMES clang)
|
|
endif()
|
|
|
|
if("${CMAKE_GENERATOR}" MATCHES "Xcode")
|
|
set(CMAKE_OBJC_COMPILER_XCODE_TYPE sourcecode.c.objc)
|
|
else()
|
|
if(NOT CMAKE_OBJC_COMPILER)
|
|
set(CMAKE_OBJC_COMPILER_INIT NOTFOUND)
|
|
|
|
# prefer the environment variable OBJC
|
|
if($ENV{OBJC} MATCHES ".+")
|
|
get_filename_component(CMAKE_OBJC_COMPILER_INIT $ENV{OBJC} PROGRAM PROGRAM_ARGS CMAKE_OBJC_FLAGS_ENV_INIT)
|
|
if(CMAKE_OBJC_FLAGS_ENV_INIT)
|
|
set(CMAKE_OBJC_COMPILER_ARG1 "${CMAKE_OBJC_FLAGS_ENV_INIT}" CACHE STRING "First argument to Objective-C compiler")
|
|
endif()
|
|
if(NOT EXISTS ${CMAKE_OBJC_COMPILER_INIT})
|
|
message(FATAL_ERROR "Could not find compiler set in environment variable OBJC:\n$ENV{OBJC}.")
|
|
endif()
|
|
endif()
|
|
|
|
# next try prefer the compiler specified by the generator
|
|
if(CMAKE_GENERATOR_OBJC)
|
|
if(NOT CMAKE_OBJC_COMPILER_INIT)
|
|
set(CMAKE_OBJC_COMPILER_INIT ${CMAKE_GENERATOR_OBJC})
|
|
endif()
|
|
endif()
|
|
|
|
# finally list compilers to try
|
|
if(NOT CMAKE_OBJC_COMPILER_INIT)
|
|
set(CMAKE_OBJC_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}cc ${_CMAKE_TOOLCHAIN_PREFIX}gcc clang)
|
|
endif()
|
|
|
|
_cmake_find_compiler(OBJC)
|
|
|
|
else()
|
|
# we only get here if CMAKE_OBJC_COMPILER was specified using -D or a pre-made CMakeCache.txt
|
|
# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
|
|
# if CMAKE_OBJC_COMPILER is a list of length 2, use the first item as
|
|
# CMAKE_OBJC_COMPILER and the 2nd one as CMAKE_OBJC_COMPILER_ARG1
|
|
|
|
list(LENGTH CMAKE_OBJC_COMPILER _CMAKE_OBJC_COMPILER_LIST_LENGTH)
|
|
if("${_CMAKE_OBJC_COMPILER_LIST_LENGTH}" EQUAL 2)
|
|
list(GET CMAKE_OBJC_COMPILER 1 CMAKE_OBJC_COMPILER_ARG1)
|
|
list(GET CMAKE_OBJC_COMPILER 0 CMAKE_OBJC_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 C compiler already had a path, reuse it for searching the CXX compiler
|
|
get_filename_component(_CMAKE_USER_OBJC_COMPILER_PATH "${CMAKE_OBJC_COMPILER}" PATH)
|
|
if(NOT _CMAKE_USER_OBJC_COMPILER_PATH)
|
|
find_program(CMAKE_OBJC_COMPILER_WITH_PATH NAMES ${CMAKE_OBJC_COMPILER})
|
|
if(CMAKE_OBJC_COMPILER_WITH_PATH)
|
|
set(CMAKE_OBJC_COMPILER ${CMAKE_OBJC_COMPILER_WITH_PATH} CACHE STRING "Objective-C compiler" FORCE)
|
|
endif()
|
|
unset(CMAKE_OBJC_COMPILER_WITH_PATH CACHE)
|
|
endif()
|
|
endif()
|
|
mark_as_advanced(CMAKE_OBJC_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_OBJC_COMPILER_ID_TEST_FLAGS_FIRST)
|
|
set(CMAKE_OBJC_COMPILER_ID_TEST_FLAGS
|
|
# Try compiling to an object file only.
|
|
"-c"
|
|
|
|
)
|
|
endif()
|
|
|
|
# Build a small source file to identify the compiler.
|
|
if(NOT CMAKE_OBJC_COMPILER_ID_RUN)
|
|
set(CMAKE_OBJC_COMPILER_ID_RUN 1)
|
|
|
|
# Try to identify the compiler.
|
|
set(CMAKE_OBJC_COMPILER_ID)
|
|
file(READ ${CMAKE_ROOT}/Modules/CMakePlatformId.h.in
|
|
CMAKE_OBJC_COMPILER_ID_PLATFORM_CONTENT)
|
|
|
|
# Match the link line from xcodebuild output of the form
|
|
# Ld ...
|
|
# ...
|
|
# /path/to/cc ...CompilerIdOBJC/...
|
|
# to extract the compiler front-end for the language.
|
|
set(CMAKE_OBJC_COMPILER_ID_TOOL_MATCH_REGEX "\nLd[^\n]*(\n[ \t]+[^\n]*)*\n[ \t]+([^ \t\r\n]+)[^\r\n]*-o[^\r\n]*CompilerIdOBJC/(\\./)?(CompilerIdOBJC.(framework|xctest)/)?CompilerIdOBJC[ \t\n\\\"]")
|
|
set(CMAKE_OBJC_COMPILER_ID_TOOL_MATCH_INDEX 2)
|
|
|
|
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
|
|
CMAKE_DETERMINE_COMPILER_ID(OBJC OBJCCFLAGS CMakeOBJCCompilerId.m)
|
|
|
|
# Set old compiler and platform id variables.
|
|
if(CMAKE_OBJC_COMPILER_ID STREQUAL "GNU")
|
|
set(CMAKE_COMPILER_IS_GNUOBJC 1)
|
|
endif()
|
|
if(CMAKE_OBJC_COMPILER_ID STREQUAL "Clang")
|
|
set(CMAKE_COMPILER_IS_CLANGOBJC 1)
|
|
endif()
|
|
endif()
|
|
|
|
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
|
|
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_OBJC_COMPILER}" PATH)
|
|
endif ()
|
|
|
|
# If we have a gcc cross compiler, they have usually some prefix, like
|
|
# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc, optionally
|
|
# with a 3-component version number at the end (e.g. arm-eabi-gcc-4.5.2).
|
|
# The other tools of the toolchain usually have the same prefix
|
|
# NAME_WE cannot be used since then this test will fail for names like
|
|
# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
|
|
# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
|
|
if (CMAKE_CROSSCOMPILING AND NOT _CMAKE_TOOLCHAIN_PREFIX)
|
|
|
|
if(CMAKE_OBJC_COMPILER_ID MATCHES "GNU|Clang|QCC")
|
|
get_filename_component(COMPILER_BASENAME "${CMAKE_OBJC_COMPILER}" NAME)
|
|
if (COMPILER_BASENAME MATCHES "^(.+-)(clang|g?cc)(-[0-9]+(\\.[0-9]+)*)?(-[^.]+)?(\\.exe)?$")
|
|
set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
|
|
set(_CMAKE_COMPILER_SUFFIX ${CMAKE_MATCH_5})
|
|
elseif(CMAKE_OBJC_COMPILER_ID MATCHES "Clang")
|
|
if(CMAKE_OBJC_COMPILER_TARGET)
|
|
set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_OBJC_COMPILER_TARGET}-)
|
|
endif()
|
|
elseif(COMPILER_BASENAME MATCHES "qcc(\\.exe)?$")
|
|
if(CMAKE_OBJC_COMPILER_TARGET MATCHES "gcc_nto([a-z0-9]+_[0-9]+|[^_le]+)(le)?")
|
|
set(_CMAKE_TOOLCHAIN_PREFIX nto${CMAKE_MATCH_1}-)
|
|
endif()
|
|
endif ()
|
|
|
|
# if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils
|
|
# but uses the regular ar, objcopy, etc. (instead of llvm-objcopy etc.)
|
|
if ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
|
|
set(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
|
|
endif ()
|
|
endif()
|
|
|
|
endif ()
|
|
|
|
set(_CMAKE_PROCESSING_LANGUAGE "OBJC")
|
|
include(CMakeFindBinUtils)
|
|
include(Compiler/${CMAKE_OBJC_COMPILER_ID}-FindBinUtils OPTIONAL)
|
|
unset(_CMAKE_PROCESSING_LANGUAGE)
|
|
|
|
if(CMAKE_OBJC_COMPILER_ARCHITECTURE_ID)
|
|
set(_SET_CMAKE_OBJC_COMPILER_ARCHITECTURE_ID
|
|
"set(CMAKE_OBJC_COMPILER_ARCHITECTURE_ID ${CMAKE_OBJC_COMPILER_ARCHITECTURE_ID})")
|
|
else()
|
|
set(_SET_CMAKE_OBJC_COMPILER_ARCHITECTURE_ID "")
|
|
endif()
|
|
|
|
if(CMAKE_OBJC_XCODE_ARCHS)
|
|
set(SET_CMAKE_XCODE_ARCHS
|
|
"set(CMAKE_XCODE_ARCHS \"${CMAKE_OBJC_XCODE_ARCHS}\")")
|
|
endif()
|
|
|
|
# configure variables set in this file for fast reload later on
|
|
configure_file(${CMAKE_ROOT}/Modules/CMakeOBJCCompiler.cmake.in
|
|
${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake
|
|
@ONLY
|
|
)
|
|
set(CMAKE_OBJC_COMPILER_ENV_VAR "OBJC")
|