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https://github.com/Kitware/CMake.git
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50e57aa4ca
Variables such as CMAKE_COMPILER_IS_GNUCC are documented as obsolete/deprecated and ideally shouldn't be used in the code anymore to have clearer compiler identifications. In the past QCC compiler was identified as GNU and also had this variable set to 1 (see policy CMP0047). Same still applies for LCC compiler (see policy CMP0129).
193 lines
6.6 KiB
CMake
193 lines
6.6 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file LICENSE.rst or https://cmake.org/licensing for details.
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# This file sets the basic flags for the Objective-C language in CMake.
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# It also loads the available platform file for the system-compiler
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# if it exists.
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# It also loads a system - compiler - processor (or target hardware)
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# specific file, which is mainly useful for crosscompiling and embedded systems.
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include(CMakeLanguageInformation)
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# some compilers use different extensions (e.g. sdcc uses .rel)
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# so set the extension here first so it can be overridden by the compiler specific file
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set(CMAKE_OBJC_OUTPUT_EXTENSION .o)
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if(NOT CMAKE_INCLUDE_FLAG_OBJC)
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set(CMAKE_INCLUDE_FLAG_OBJC ${CMAKE_INCLUDE_FLAG_C})
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endif()
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set(_INCLUDED_FILE 0)
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# Load compiler-specific information.
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if(CMAKE_OBJC_COMPILER_ID)
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include(Compiler/${CMAKE_OBJC_COMPILER_ID}-OBJC OPTIONAL)
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endif()
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set(CMAKE_BASE_NAME)
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get_filename_component(CMAKE_BASE_NAME "${CMAKE_OBJC_COMPILER}" NAME_WE)
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if(CMAKE_OBJC_COMPILER_ID STREQUAL "GNU")
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set(CMAKE_BASE_NAME gcc)
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endif()
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# load a hardware specific file, mostly useful for embedded compilers
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if(CMAKE_SYSTEM_PROCESSOR)
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if(CMAKE_OBJC_COMPILER_ID)
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include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_OBJC_COMPILER_ID}-OBJC-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
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endif()
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if (NOT _INCLUDED_FILE)
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include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_BASE_NAME}-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL)
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endif ()
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endif()
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# load the system- and compiler specific files
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if(CMAKE_OBJC_COMPILER_ID)
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include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_OBJC_COMPILER_ID}-OBJC
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OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
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endif()
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if (NOT _INCLUDED_FILE)
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include(Platform/${CMAKE_EFFECTIVE_SYSTEM_NAME}-${CMAKE_BASE_NAME}
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OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
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endif ()
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# load any compiler-wrapper specific information
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if (CMAKE_OBJC_COMPILER_WRAPPER)
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__cmake_include_compiler_wrapper(OBJC)
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endif ()
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# We specify the compiler information in the system file for some
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# platforms, but this language may not have been enabled when the file
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# was first included. Include it again to get the language info.
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# Remove this when all compiler info is removed from system files.
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if (NOT _INCLUDED_FILE)
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include(Platform/${CMAKE_SYSTEM_NAME} OPTIONAL)
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endif ()
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if(CMAKE_OBJC_SIZEOF_DATA_PTR)
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foreach(f IN LISTS CMAKE_OBJC_ABI_FILES)
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include(${f})
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endforeach()
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unset(CMAKE_OBJC_ABI_FILES)
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endif()
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# This should be included before the _INIT variables are
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# used to initialize the cache. Since the rule variables
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# have if blocks on them, users can still define them here.
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# But, it should still be after the platform file so changes can
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# be made to those values.
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if(CMAKE_USER_MAKE_RULES_OVERRIDE)
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# Save the full path of the file so try_compile can use it.
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include(${CMAKE_USER_MAKE_RULES_OVERRIDE} RESULT_VARIABLE _override)
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set(CMAKE_USER_MAKE_RULES_OVERRIDE "${_override}")
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endif()
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if(CMAKE_USER_MAKE_RULES_OVERRIDE_OBJC)
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# Save the full path of the file so try_compile can use it.
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include(${CMAKE_USER_MAKE_RULES_OVERRIDE_OBJC} RESULT_VARIABLE _override)
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set(CMAKE_USER_MAKE_RULES_OVERRIDE_OBJC "${_override}")
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endif()
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set(CMAKE_OBJC_FLAGS_INIT "$ENV{OBJCFLAGS} ${CMAKE_OBJC_FLAGS_INIT}")
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cmake_initialize_per_config_variable(CMAKE_OBJC_FLAGS "Flags used by the Objective-C compiler")
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if(CMAKE_OBJC_STANDARD_LIBRARIES_INIT)
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set(CMAKE_OBJC_STANDARD_LIBRARIES "${CMAKE_OBJC_STANDARD_LIBRARIES_INIT}"
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CACHE STRING "Libraries linked by default with all Objective-C applications.")
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mark_as_advanced(CMAKE_OBJC_STANDARD_LIBRARIES)
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endif()
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if(NOT CMAKE_OBJC_COMPILER_LAUNCHER AND DEFINED ENV{CMAKE_OBJC_COMPILER_LAUNCHER})
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set(CMAKE_OBJC_COMPILER_LAUNCHER "$ENV{CMAKE_OBJC_COMPILER_LAUNCHER}"
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CACHE STRING "Compiler launcher for OBJC.")
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endif()
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if(NOT CMAKE_OBJC_LINKER_LAUNCHER AND DEFINED ENV{CMAKE_OBJC_LINKER_LAUNCHER})
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set(CMAKE_OBJC_LINKER_LAUNCHER "$ENV{CMAKE_OBJC_LINKER_LAUNCHER}"
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CACHE STRING "Linker launcher for OBJC.")
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endif()
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include(CMakeCommonLanguageInclude)
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_cmake_common_language_platform_flags(OBJC)
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# now define the following rule variables
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# CMAKE_OBJC_CREATE_SHARED_LIBRARY
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# CMAKE_OBJC_CREATE_SHARED_MODULE
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# CMAKE_OBJC_COMPILE_OBJECT
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# CMAKE_OBJC_LINK_EXECUTABLE
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# variables supplied by the generator at use time
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# <TARGET>
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# <TARGET_BASE> the target without the suffix
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# <OBJECTS>
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# <OBJECT>
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# <LINK_LIBRARIES>
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# <FLAGS>
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# <LINK_FLAGS>
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# Objective-C compiler information
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# <CMAKE_OBJC_COMPILER>
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# <CMAKE_SHARED_LIBRARY_CREATE_OBJC_FLAGS>
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# <CMAKE_SHARED_MODULE_CREATE_OBJC_FLAGS>
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# <CMAKE_OBJC_LINK_FLAGS>
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# Static library tools
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# <CMAKE_AR>
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# <CMAKE_RANLIB>
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# create an Objective-C shared library
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if(NOT CMAKE_OBJC_CREATE_SHARED_LIBRARY)
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set(CMAKE_OBJC_CREATE_SHARED_LIBRARY
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"<CMAKE_OBJC_COMPILER> <CMAKE_SHARED_LIBRARY_OBJC_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_OBJC_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
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endif()
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# create an Objective-C shared module just copy the shared library rule
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if(NOT CMAKE_OBJC_CREATE_SHARED_MODULE)
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set(CMAKE_OBJC_CREATE_SHARED_MODULE ${CMAKE_OBJC_CREATE_SHARED_LIBRARY})
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endif()
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# Create an static archive incrementally for large object file counts.
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# If CMAKE_OBJC_CREATE_STATIC_LIBRARY is set it will override these.
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if(NOT DEFINED CMAKE_OBJC_ARCHIVE_CREATE)
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set(CMAKE_OBJC_ARCHIVE_CREATE "<CMAKE_AR> qc <TARGET> <LINK_FLAGS> <OBJECTS>")
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endif()
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if(NOT DEFINED CMAKE_OBJC_ARCHIVE_APPEND)
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set(CMAKE_OBJC_ARCHIVE_APPEND "<CMAKE_AR> q <TARGET> <LINK_FLAGS> <OBJECTS>")
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endif()
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if(NOT DEFINED CMAKE_OBJC_ARCHIVE_FINISH)
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set(CMAKE_OBJC_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>")
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endif()
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# compile an Objective-C file into an object file
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if(NOT CMAKE_OBJC_COMPILE_OBJECT)
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set(CMAKE_OBJC_COMPILE_OBJECT
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"<CMAKE_OBJC_COMPILER> <DEFINES> <INCLUDES> -x objective-c <FLAGS> -o <OBJECT> -c <SOURCE>")
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endif()
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if(NOT CMAKE_OBJC_LINK_EXECUTABLE)
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set(CMAKE_OBJC_LINK_EXECUTABLE
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"<CMAKE_OBJC_COMPILER> <FLAGS> <CMAKE_OBJC_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
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endif()
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if(NOT CMAKE_EXECUTABLE_RUNTIME_OBJC_FLAG)
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set(CMAKE_EXECUTABLE_RUNTIME_OBJC_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_OBJC_FLAG})
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endif()
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if(NOT CMAKE_EXECUTABLE_RUNTIME_OBJC_FLAG_SEP)
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set(CMAKE_EXECUTABLE_RUNTIME_OBJC_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_OBJC_FLAG_SEP})
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endif()
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if(NOT CMAKE_EXECUTABLE_RPATH_LINK_OBJC_FLAG)
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set(CMAKE_EXECUTABLE_RPATH_LINK_OBJC_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_OBJC_FLAG})
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endif()
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set(CMAKE_OBJC_USE_LINKER_INFORMATION TRUE)
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set(CMAKE_OBJC_INFORMATION_LOADED 1)
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