| #.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() |
| |