diff options
Diffstat (limited to 'Modules/CMakeCXXInformation.cmake')
| -rw-r--r-- | Modules/CMakeCXXInformation.cmake | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/Modules/CMakeCXXInformation.cmake b/Modules/CMakeCXXInformation.cmake new file mode 100644 index 000000000..9dc9cbd30 --- /dev/null +++ b/Modules/CMakeCXXInformation.cmake @@ -0,0 +1,299 @@ + +#============================================================================= +# 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_CXX_OUTPUT_EXTENSION .o) +ELSE(UNIX) + SET(CMAKE_CXX_OUTPUT_EXTENSION .obj) +ENDIF(UNIX) + +SET(_INCLUDED_FILE 0) + +# Load compiler-specific information. +IF(CMAKE_CXX_COMPILER_ID) + INCLUDE(Compiler/${CMAKE_CXX_COMPILER_ID}-CXX OPTIONAL) +ENDIF(CMAKE_CXX_COMPILER_ID) + +SET(CMAKE_BASE_NAME) +GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_CXX_COMPILER} NAME_WE) +# since the gnu compiler has several names force g++ +IF(CMAKE_COMPILER_IS_GNUCXX) + SET(CMAKE_BASE_NAME g++) +ENDIF(CMAKE_COMPILER_IS_GNUCXX) + + +# load a hardware specific file, mostly useful for embedded compilers +IF(CMAKE_SYSTEM_PROCESSOR) + IF(CMAKE_CXX_COMPILER_ID) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_CXX_COMPILER_ID}-CXX-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL RESULT_VARIABLE _INCLUDED_FILE) + ENDIF(CMAKE_CXX_COMPILER_ID) + IF (NOT _INCLUDED_FILE) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL) + ENDIF (NOT _INCLUDED_FILE) +ENDIF(CMAKE_SYSTEM_PROCESSOR) + +# load the system- and compiler specific files +IF(CMAKE_CXX_COMPILER_ID) + INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_CXX_COMPILER_ID}-CXX OPTIONAL RESULT_VARIABLE _INCLUDED_FILE) +ENDIF(CMAKE_CXX_COMPILER_ID) +IF (NOT _INCLUDED_FILE) + INCLUDE(Platform/${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_CXX_SIZEOF_DATA_PTR) + FOREACH(f ${CMAKE_CXX_ABI_FILES}) + INCLUDE(${f}) + ENDFOREACH() + UNSET(CMAKE_CXX_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_CXX) + # Save the full path of the file so try_compile can use it. + INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE_CXX} RESULT_VARIABLE _override) + SET(CMAKE_USER_MAKE_RULES_OVERRIDE_CXX "${_override}") +ENDIF() + + +# Create a set of shared library variable specific to C++ +# For 90% of the systems, these are the same flags as the C versions +# so if these are not set just copy the flags from the c version +IF(NOT CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS) + SET(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS}) +ENDIF(NOT CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS) + +IF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIC) + SET(CMAKE_CXX_COMPILE_OPTIONS_PIC ${CMAKE_C_COMPILE_OPTIONS_PIC}) +ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIC) + +IF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIE) + SET(CMAKE_CXX_COMPILE_OPTIONS_PIE ${CMAKE_C_COMPILE_OPTIONS_PIE}) +ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_PIE) + +IF(NOT CMAKE_CXX_COMPILE_OPTIONS_DLL) + SET(CMAKE_CXX_COMPILE_OPTIONS_DLL ${CMAKE_C_COMPILE_OPTIONS_DLL}) +ENDIF(NOT CMAKE_CXX_COMPILE_OPTIONS_DLL) + +IF(NOT CMAKE_SHARED_LIBRARY_CXX_FLAGS) + SET(CMAKE_SHARED_LIBRARY_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS}) +ENDIF(NOT CMAKE_SHARED_LIBRARY_CXX_FLAGS) + +IF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS) + SET(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS}) +ENDIF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS) + +IF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG) + SET(CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG}) +ENDIF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG) + +IF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP) + SET(CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP}) +ENDIF(NOT CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP) + +IF(NOT CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG) + SET(CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG}) +ENDIF(NOT CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG) + +IF(NOT DEFINED CMAKE_EXE_EXPORTS_CXX_FLAG) + SET(CMAKE_EXE_EXPORTS_CXX_FLAG ${CMAKE_EXE_EXPORTS_C_FLAG}) +ENDIF() + +IF(NOT DEFINED CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG) + SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG ${CMAKE_SHARED_LIBRARY_SONAME_C_FLAG}) +ENDIF() + +IF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG) + SET(CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG}) +ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG) + +IF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG_SEP) + SET(CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_CXX_FLAG_SEP}) +ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_CXX_FLAG_SEP) + +IF(NOT CMAKE_EXECUTABLE_RPATH_LINK_CXX_FLAG) + SET(CMAKE_EXECUTABLE_RPATH_LINK_CXX_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_CXX_FLAG}) +ENDIF(NOT CMAKE_EXECUTABLE_RPATH_LINK_CXX_FLAG) + +IF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_WITH_RUNTIME_PATH) + SET(CMAKE_SHARED_LIBRARY_LINK_CXX_WITH_RUNTIME_PATH ${CMAKE_SHARED_LIBRARY_LINK_C_WITH_RUNTIME_PATH}) +ENDIF(NOT DEFINED CMAKE_SHARED_LIBRARY_LINK_CXX_WITH_RUNTIME_PATH) + +IF(NOT CMAKE_INCLUDE_FLAG_CXX) + SET(CMAKE_INCLUDE_FLAG_CXX ${CMAKE_INCLUDE_FLAG_C}) +ENDIF(NOT CMAKE_INCLUDE_FLAG_CXX) + +IF(NOT CMAKE_INCLUDE_FLAG_SEP_CXX) + SET(CMAKE_INCLUDE_FLAG_SEP_CXX ${CMAKE_INCLUDE_FLAG_SEP_C}) +ENDIF(NOT CMAKE_INCLUDE_FLAG_SEP_CXX) + +# 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_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CXX_FLAGS}) + SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS}) +ENDIF(NOT CMAKE_MODULE_EXISTS) + +# repeat for modules +IF(NOT CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS) + SET(CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS ${CMAKE_SHARED_MODULE_CREATE_C_FLAGS}) +ENDIF(NOT CMAKE_SHARED_MODULE_CREATE_CXX_FLAGS) + +IF(NOT CMAKE_SHARED_MODULE_CXX_FLAGS) + SET(CMAKE_SHARED_MODULE_CXX_FLAGS ${CMAKE_SHARED_MODULE_C_FLAGS}) +ENDIF(NOT CMAKE_SHARED_MODULE_CXX_FLAGS) + +# Initialize CXX link type selection flags from C versions. +FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE) + IF(NOT CMAKE_${type}_LINK_STATIC_CXX_FLAGS) + SET(CMAKE_${type}_LINK_STATIC_CXX_FLAGS + ${CMAKE_${type}_LINK_STATIC_C_FLAGS}) + ENDIF(NOT CMAKE_${type}_LINK_STATIC_CXX_FLAGS) + IF(NOT CMAKE_${type}_LINK_DYNAMIC_CXX_FLAGS) + SET(CMAKE_${type}_LINK_DYNAMIC_CXX_FLAGS + ${CMAKE_${type}_LINK_DYNAMIC_C_FLAGS}) + ENDIF(NOT CMAKE_${type}_LINK_DYNAMIC_CXX_FLAGS) +ENDFOREACH(type) + +# add the flags to the cache based +# on the initial values computed in the platform/*.cmake files +# use _INIT variables so that this only happens the first time +# and you can set these flags in the cmake cache +SET(CMAKE_CXX_FLAGS_INIT "$ENV{CXXFLAGS} ${CMAKE_CXX_FLAGS_INIT}") +# avoid just having a space as the initial value for the cache +IF(CMAKE_CXX_FLAGS_INIT STREQUAL " ") + SET(CMAKE_CXX_FLAGS_INIT) +ENDIF(CMAKE_CXX_FLAGS_INIT STREQUAL " ") +SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_INIT}" CACHE STRING + "Flags used by the compiler during all build types.") + +IF(NOT CMAKE_NOT_USING_CONFIG_FLAGS) + SET (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG_INIT}" CACHE STRING + "Flags used by the compiler during debug builds.") + SET (CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL_INIT}" CACHE STRING + "Flags used by the compiler during release minsize builds.") + SET (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE_INIT}" CACHE STRING + "Flags used by the compiler during release builds (/MD /Ob1 /Oi /Ot /Oy /Gs will produce slightly less optimized but smaller files).") + SET (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_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_CXX_STANDARD_LIBRARIES_INIT) + SET(CMAKE_CXX_STANDARD_LIBRARIES "${CMAKE_CXX_STANDARD_LIBRARIES_INIT}" + CACHE STRING "Libraries linked by defalut with all C++ applications.") + MARK_AS_ADVANCED(CMAKE_CXX_STANDARD_LIBRARIES) +ENDIF(CMAKE_CXX_STANDARD_LIBRARIES_INIT) + +INCLUDE(CMakeCommonLanguageInclude) + +# now define the following rules: +# CMAKE_CXX_CREATE_SHARED_LIBRARY +# CMAKE_CXX_CREATE_SHARED_MODULE +# CMAKE_CXX_COMPILE_OBJECT +# CMAKE_CXX_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> + +# CXX compiler information +# <CMAKE_CXX_COMPILER> +# <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> +# <CMAKE_CXX_SHARED_MODULE_CREATE_FLAGS> +# <CMAKE_CXX_LINK_FLAGS> + +# Static library tools +# <CMAKE_AR> +# <CMAKE_RANLIB> + + +# create a shared C++ library +IF(NOT CMAKE_CXX_CREATE_SHARED_LIBRARY) + SET(CMAKE_CXX_CREATE_SHARED_LIBRARY + "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>") +ENDIF(NOT CMAKE_CXX_CREATE_SHARED_LIBRARY) + +# create a c++ shared module copy the shared library rule by default +IF(NOT CMAKE_CXX_CREATE_SHARED_MODULE) + SET(CMAKE_CXX_CREATE_SHARED_MODULE ${CMAKE_CXX_CREATE_SHARED_LIBRARY}) +ENDIF(NOT CMAKE_CXX_CREATE_SHARED_MODULE) + + +# Create a static archive incrementally for large object file counts. +# If CMAKE_CXX_CREATE_STATIC_LIBRARY is set it will override these. +IF(NOT DEFINED CMAKE_CXX_ARCHIVE_CREATE) + SET(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS>") +ENDIF() +IF(NOT DEFINED CMAKE_CXX_ARCHIVE_APPEND) + SET(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> r <TARGET> <LINK_FLAGS> <OBJECTS>") +ENDIF() +IF(NOT DEFINED CMAKE_CXX_ARCHIVE_FINISH) + SET(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>") +ENDIF() + +# compile a C++ file into an object file +IF(NOT CMAKE_CXX_COMPILE_OBJECT) + SET(CMAKE_CXX_COMPILE_OBJECT + "<CMAKE_CXX_COMPILER> <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>") +ENDIF(NOT CMAKE_CXX_COMPILE_OBJECT) + +IF(NOT CMAKE_CXX_LINK_EXECUTABLE) + SET(CMAKE_CXX_LINK_EXECUTABLE + "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>") +ENDIF(NOT CMAKE_CXX_LINK_EXECUTABLE) + +MARK_AS_ADVANCED( +CMAKE_BUILD_TOOL +CMAKE_VERBOSE_MAKEFILE +CMAKE_CXX_FLAGS +CMAKE_CXX_FLAGS_RELEASE +CMAKE_CXX_FLAGS_RELWITHDEBINFO +CMAKE_CXX_FLAGS_MINSIZEREL +CMAKE_CXX_FLAGS_DEBUG) + +SET(CMAKE_CXX_INFORMATION_LOADED 1) + |