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Diffstat (limited to 'Modules/CMakeCInformation.cmake')
| -rw-r--r-- | Modules/CMakeCInformation.cmake | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/Modules/CMakeCInformation.cmake b/Modules/CMakeCInformation.cmake new file mode 100644 index 000000000..afac7a452 --- /dev/null +++ b/Modules/CMakeCInformation.cmake @@ -0,0 +1,219 @@ + +#============================================================================= +# Copyright 2004-2011 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.) + +# 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. +# It also loads a system - compiler - processor (or target hardware) +# specific file, which is mainly useful for crosscompiling and embedded systems. + +# some compilers use different extensions (e.g. sdcc uses .rel) +# so set the extension here first so it can be overridden by the compiler specific file +IF(UNIX) + SET(CMAKE_C_OUTPUT_EXTENSION .o) +ELSE(UNIX) + SET(CMAKE_C_OUTPUT_EXTENSION .obj) +ENDIF(UNIX) + +SET(_INCLUDED_FILE 0) + +# Load compiler-specific information. +IF(CMAKE_C_COMPILER_ID) + INCLUDE(Compiler/${CMAKE_C_COMPILER_ID}-C OPTIONAL) +ENDIF(CMAKE_C_COMPILER_ID) + +SET(CMAKE_BASE_NAME) +GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_C_COMPILER} NAME_WE) +IF(CMAKE_COMPILER_IS_GNUCC) + SET(CMAKE_BASE_NAME gcc) +ENDIF(CMAKE_COMPILER_IS_GNUCC) + + +# load a hardware specific file, mostly useful for embedded compilers +IF(CMAKE_SYSTEM_PROCESSOR) + IF(CMAKE_C_COMPILER_ID) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_C_COMPILER_ID}-C-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL RESULT_VARIABLE _INCLUDED_FILE) + ENDIF(CMAKE_C_COMPILER_ID) + IF (NOT _INCLUDED_FILE) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL) + ENDIF (NOT _INCLUDED_FILE) +ENDIF(CMAKE_SYSTEM_PROCESSOR) + + +# load the system- and compiler specific files +IF(CMAKE_C_COMPILER_ID) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_C_COMPILER_ID}-C + OPTIONAL RESULT_VARIABLE _INCLUDED_FILE) +ENDIF(CMAKE_C_COMPILER_ID) +IF (NOT _INCLUDED_FILE) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME} + OPTIONAL RESULT_VARIABLE _INCLUDED_FILE) +ENDIF (NOT _INCLUDED_FILE) +# We specify the compiler information in the system file for some +# platforms, but this language may not have been enabled when the file +# was first included. Include it again to get the language info. +# Remove this when all compiler info is removed from system files. +IF (NOT _INCLUDED_FILE) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME} OPTIONAL) +ENDIF (NOT _INCLUDED_FILE) + +IF(CMAKE_C_SIZEOF_DATA_PTR) + FOREACH(f ${CMAKE_C_ABI_FILES}) + INCLUDE(${f}) + ENDFOREACH() + UNSET(CMAKE_C_ABI_FILES) +ENDIF() + +# 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) + # Save the full path of the file so try_compile can use it. + INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE} RESULT_VARIABLE _override) + SET(CMAKE_USER_MAKE_RULES_OVERRIDE "${_override}") +ENDIF() + +IF(CMAKE_USER_MAKE_RULES_OVERRIDE_C) + # Save the full path of the file so try_compile can use it. + INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE_C} RESULT_VARIABLE _override) + SET(CMAKE_USER_MAKE_RULES_OVERRIDE_C "${_override}") +ENDIF() + + +# 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 ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS}) +ENDIF(NOT CMAKE_MODULE_EXISTS) + +SET(CMAKE_C_FLAGS_INIT "$ENV{CFLAGS} ${CMAKE_C_FLAGS_INIT}") +# avoid just having a space as the initial value for the cache +IF(CMAKE_C_FLAGS_INIT STREQUAL " ") + SET(CMAKE_C_FLAGS_INIT) +ENDIF(CMAKE_C_FLAGS_INIT STREQUAL " ") +SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS_INIT}" CACHE STRING + "Flags used by the compiler during all build types.") + +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_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> <SONAME_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 static archive incrementally for large object file counts. +# If CMAKE_C_CREATE_STATIC_LIBRARY is set it will override these. +IF(NOT DEFINED CMAKE_C_ARCHIVE_CREATE) + SET(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS>") +ENDIF() +IF(NOT DEFINED CMAKE_C_ARCHIVE_APPEND) + SET(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> r <TARGET> <LINK_FLAGS> <OBJECTS>") +ENDIF() +IF(NOT DEFINED CMAKE_C_ARCHIVE_FINISH) + SET(CMAKE_C_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>") +ENDIF() + +# compile a C file into an object file +IF(NOT CMAKE_C_COMPILE_OBJECT) + SET(CMAKE_C_COMPILE_OBJECT + "<CMAKE_C_COMPILER> <DEFINES> <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) + +IF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG) + SET(CMAKE_EXECUTABLE_RUNTIME_C_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG}) +ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG) + +IF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG_SEP) + SET(CMAKE_EXECUTABLE_RUNTIME_C_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP}) +ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG_SEP) + +IF(NOT CMAKE_EXECUTABLE_RPATH_LINK_C_FLAG) + SET(CMAKE_EXECUTABLE_RPATH_LINK_C_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG}) +ENDIF(NOT CMAKE_EXECUTABLE_RPATH_LINK_C_FLAG) + +MARK_AS_ADVANCED( +CMAKE_C_FLAGS +CMAKE_C_FLAGS_DEBUG +CMAKE_C_FLAGS_MINSIZEREL +CMAKE_C_FLAGS_RELEASE +CMAKE_C_FLAGS_RELWITHDEBINFO +) +SET(CMAKE_C_INFORMATION_LOADED 1) + + |