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- #.rst:
- # CMakeBackwardCompatibilityCXX
- # -----------------------------
- #
- # define a bunch of backwards compatibility variables
- #
- # ::
- #
- # CMAKE_ANSI_CXXFLAGS - flag for ansi c++
- # CMAKE_HAS_ANSI_STRING_STREAM - has <strstream>
- # include(TestForANSIStreamHeaders)
- # include(CheckIncludeFileCXX)
- # include(TestForSTDNamespace)
- # include(TestForANSIForScope)
- #=============================================================================
- # Copyright 2002-2009 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.)
- if(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
- # check for some ANSI flags in the CXX compiler if it is not gnu
- if(NOT CMAKE_COMPILER_IS_GNUCXX)
- include(TestCXXAcceptsFlag)
- set(CMAKE_TRY_ANSI_CXX_FLAGS "")
- if(CMAKE_SYSTEM_NAME MATCHES "IRIX")
- set(CMAKE_TRY_ANSI_CXX_FLAGS "-LANG:std")
- endif()
- if(CMAKE_SYSTEM_NAME MATCHES "OSF")
- set(CMAKE_TRY_ANSI_CXX_FLAGS "-std strict_ansi -nopure_cname")
- endif()
- # if CMAKE_TRY_ANSI_CXX_FLAGS has something in it, see
- # if the compiler accepts it
- if(NOT CMAKE_TRY_ANSI_CXX_FLAGS STREQUAL "")
- CHECK_CXX_ACCEPTS_FLAG(${CMAKE_TRY_ANSI_CXX_FLAGS} CMAKE_CXX_ACCEPTS_FLAGS)
- # if the compiler liked the flag then set CMAKE_ANSI_CXXFLAGS
- # to the flag
- if(CMAKE_CXX_ACCEPTS_FLAGS)
- set(CMAKE_ANSI_CXXFLAGS ${CMAKE_TRY_ANSI_CXX_FLAGS} CACHE INTERNAL
- "What flags are required by the c++ compiler to make it ansi." )
- endif()
- endif()
- endif()
- set(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_ANSI_CXXFLAGS}")
- include(TestForANSIStreamHeaders)
- include(CheckIncludeFileCXX)
- include(TestForSTDNamespace)
- include(TestForANSIForScope)
- include(TestForSSTREAM)
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_SAVE}")
- endif()
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