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8ebf74b02f
This solves a lots of warnings, e.g. in the FindModulesExecuteAll test. If the installed version on the system is rather old this may even lead to bugs, e.g. https://bugs.gentoo.org/show_bug.cgi?id=436540
35 lines
1.3 KiB
CMake
35 lines
1.3 KiB
CMake
# - Test for compiler support of ANSI stream headers iostream, etc.
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# check if the compiler supports the standard ANSI iostream header (without the .h)
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# CMAKE_NO_ANSI_STREAM_HEADERS - defined by the results
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#
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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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include(${CMAKE_CURRENT_LIST_DIR}/CheckIncludeFileCXX.cmake)
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if(NOT CMAKE_NO_ANSI_STREAM_HEADERS)
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CHECK_INCLUDE_FILE_CXX(iostream CMAKE_ANSI_STREAM_HEADERS)
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if (CMAKE_ANSI_STREAM_HEADERS)
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set (CMAKE_NO_ANSI_STREAM_HEADERS 0 CACHE INTERNAL
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"Does the compiler support headers like iostream.")
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else ()
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set (CMAKE_NO_ANSI_STREAM_HEADERS 1 CACHE INTERNAL
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"Does the compiler support headers like iostream.")
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endif ()
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mark_as_advanced(CMAKE_NO_ANSI_STREAM_HEADERS)
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endif()
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