CMake/Modules/CMakeCInformation.cmake

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# This file sets the basic flags for the C language in CMake.
# It also loads the available platform file for the system-compiler
# if it exists.
ENH: merge CMake-CrossCompileBasic to HEAD -add a RESULT_VARIABLE to INCLUDE() -add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain -have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system) -use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to run the executables if they have a different suffix because they are probably crosscompiled, but nevertheless it should be able to find them -make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE -support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.) -move ranlib on OSX from the file command to a command in executed in cmake_install.cmake -add support for stripping during install in cmake_install.cmake -split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools -remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms -create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these -add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a list of directories which will be prepended to all search directories, right now as a cmake variable, turning it into a global cmake property may need some more work -remove cmTestTestHandler::TryExecutable(), it's unused -split cmFileCommand::HandleInstall() into slightly smaller functions Alex
2007-05-17 21:20:44 +04:00
IF(NOT CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE)
GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_C_COMPILER} NAME_WE)
IF(CMAKE_COMPILER_IS_GNUCC)
SET(CMAKE_BASE_NAME gcc)
ENDIF(CMAKE_COMPILER_IS_GNUCC)
IF(CMAKE_C_COMPILER_ID)
IF(EXISTS ${CMAKE_ROOT}/Modules/Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_C_COMPILER_ID}-C.cmake)
SET(CMAKE_BASE_NAME ${CMAKE_C_COMPILER_ID}-C)
ENDIF(EXISTS ${CMAKE_ROOT}/Modules/Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_C_COMPILER_ID}-C.cmake)
ENDIF(CMAKE_C_COMPILER_ID)
SET(CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE
${CMAKE_ROOT}/Modules/Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}.cmake)
ENDIF(NOT CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE)
INCLUDE(${CMAKE_SYSTEM_AND_C_COMPILER_INFO_FILE} OPTIONAL)
# This should be included before the _INIT variables are
# used to initialize the cache. Since the rule variables
# have if blocks on them, users can still define them here.
# But, it should still be after the platform file so changes can
# be made to those values.
IF(CMAKE_USER_MAKE_RULES_OVERRIDE)
INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE})
ENDIF(CMAKE_USER_MAKE_RULES_OVERRIDE)
IF(CMAKE_USER_MAKE_RULES_OVERRIDE_C)
INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE_C})
ENDIF(CMAKE_USER_MAKE_RULES_OVERRIDE_C)
# for most systems a module is the same as a shared library
# so unless the variable CMAKE_MODULE_EXISTS is set just
# copy the values from the LIBRARY variables
IF(NOT CMAKE_MODULE_EXISTS)
SET(CMAKE_SHARED_MODULE_C_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS})
SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS})
ENDIF(NOT CMAKE_MODULE_EXISTS)
SET (CMAKE_C_FLAGS "$ENV{CFLAGS} ${CMAKE_C_FLAGS_INIT}" CACHE STRING
"Flags for C compiler.")
IF(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
# default build type is none
IF(NOT CMAKE_NO_BUILD_TYPE)
SET (CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE_INIT} CACHE STRING
"Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
ENDIF(NOT CMAKE_NO_BUILD_TYPE)
SET (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG_INIT}" CACHE STRING
"Flags used by the compiler during debug builds.")
SET (CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL_INIT}" CACHE STRING
"Flags used by the compiler during release minsize builds.")
SET (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE_INIT}" CACHE STRING
"Flags used by the compiler during release builds (/MD /Ob1 /Oi /Ot /Oy /Gs will produce slightly less optimized but smaller files).")
SET (CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO_INIT}" CACHE STRING
"Flags used by the compiler during Release with Debug Info builds.")
ENDIF(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
IF(CMAKE_C_STANDARD_LIBRARIES_INIT)
SET(CMAKE_C_STANDARD_LIBRARIES "${CMAKE_C_STANDARD_LIBRARIES_INIT}"
CACHE STRING "Libraries linked by defalut with all C applications.")
MARK_AS_ADVANCED(CMAKE_C_STANDARD_LIBRARIES)
ENDIF(CMAKE_C_STANDARD_LIBRARIES_INIT)
INCLUDE(CMakeCommonLanguageInclude)
# now define the following rule variables
# CMAKE_C_CREATE_SHARED_LIBRARY
# CMAKE_C_CREATE_SHARED_MODULE
# CMAKE_C_CREATE_STATIC_LIBRARY
# CMAKE_C_COMPILE_OBJECT
# CMAKE_C_LINK_EXECUTABLE
# variables supplied by the generator at use time
# <TARGET>
# <TARGET_BASE> the target without the suffix
# <OBJECTS>
# <OBJECT>
# <LINK_LIBRARIES>
# <FLAGS>
# <LINK_FLAGS>
# C compiler information
# <CMAKE_C_COMPILER>
# <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS>
# <CMAKE_SHARED_MODULE_CREATE_C_FLAGS>
# <CMAKE_C_LINK_FLAGS>
# Static library tools
# <CMAKE_AR>
# <CMAKE_RANLIB>
# create a C shared library
IF(NOT CMAKE_C_CREATE_SHARED_LIBRARY)
SET(CMAKE_C_CREATE_SHARED_LIBRARY
"<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_C_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
ENDIF(NOT CMAKE_C_CREATE_SHARED_LIBRARY)
# create a C shared module just copy the shared library rule
IF(NOT CMAKE_C_CREATE_SHARED_MODULE)
SET(CMAKE_C_CREATE_SHARED_MODULE ${CMAKE_C_CREATE_SHARED_LIBRARY})
ENDIF(NOT CMAKE_C_CREATE_SHARED_MODULE)
# create a C static library
IF(NOT CMAKE_C_CREATE_STATIC_LIBRARY)
SET(CMAKE_C_CREATE_STATIC_LIBRARY
"<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS> "
"<CMAKE_RANLIB> <TARGET> ")
ENDIF(NOT CMAKE_C_CREATE_STATIC_LIBRARY)
# compile a C file into an object file
IF(NOT CMAKE_C_COMPILE_OBJECT)
SET(CMAKE_C_COMPILE_OBJECT
"<CMAKE_C_COMPILER> <FLAGS> -o <OBJECT> -c <SOURCE>")
ENDIF(NOT CMAKE_C_COMPILE_OBJECT)
IF(NOT CMAKE_C_LINK_EXECUTABLE)
SET(CMAKE_C_LINK_EXECUTABLE
"<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
ENDIF(NOT CMAKE_C_LINK_EXECUTABLE)
MARK_AS_ADVANCED(
CMAKE_C_FLAGS
CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_MINSIZEREL
CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_RELWITHDEBINFO
)
2006-02-27 20:14:10 +03:00
SET(CMAKE_C_INFORMATION_LOADED 1)