55 lines
2.3 KiB
CMake
55 lines
2.3 KiB
CMake
# - define a bunch of backwards compatibility variables
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# CMAKE_ANSI_CXXFLAGS - flag for ansi c++
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# CMAKE_HAS_ANSI_STRING_STREAM - has <strstream>
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# include(TestForANSIStreamHeaders)
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# include(CheckIncludeFileCXX)
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# include(TestForSTDNamespace)
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# include(TestForANSIForScope)
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#=============================================================================
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# Copyright 2002-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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if(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
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# check for some ANSI flags in the CXX compiler if it is not gnu
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if(NOT CMAKE_COMPILER_IS_GNUCXX)
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include(TestCXXAcceptsFlag)
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set(CMAKE_TRY_ANSI_CXX_FLAGS "")
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if(CMAKE_SYSTEM MATCHES "IRIX.*")
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set(CMAKE_TRY_ANSI_CXX_FLAGS "-LANG:std")
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endif(CMAKE_SYSTEM MATCHES "IRIX.*")
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if(CMAKE_SYSTEM MATCHES "OSF.*")
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set(CMAKE_TRY_ANSI_CXX_FLAGS "-std strict_ansi -nopure_cname")
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endif(CMAKE_SYSTEM MATCHES "OSF.*")
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# if CMAKE_TRY_ANSI_CXX_FLAGS has something in it, see
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# if the compiler accepts it
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if( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+")
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CHECK_CXX_ACCEPTS_FLAG(${CMAKE_TRY_ANSI_CXX_FLAGS} CMAKE_CXX_ACCEPTS_FLAGS)
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# if the compiler liked the flag then set CMAKE_ANSI_CXXFLAGS
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# to the flag
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if(CMAKE_CXX_ACCEPTS_FLAGS)
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set(CMAKE_ANSI_CXXFLAGS ${CMAKE_TRY_ANSI_CXX_FLAGS} CACHE INTERNAL
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"What flags are required by the c++ compiler to make it ansi." )
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endif(CMAKE_CXX_ACCEPTS_FLAGS)
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endif( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+")
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endif(NOT CMAKE_COMPILER_IS_GNUCXX)
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set(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_ANSI_CXXFLAGS}")
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include(TestForANSIStreamHeaders)
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include(CheckIncludeFileCXX)
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include(TestForSTDNamespace)
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include(TestForANSIForScope)
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include(TestForSSTREAM)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_SAVE}")
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endif(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
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