4d668f3311
In GNU.cmake, -isystem is not used if APPLE is set. However, Clang has pretty much always supported -isystem, so we should always use it. In the future, GNU.cmake should do a version check to see if -isystem is supported.
28 lines
933 B
CMake
28 lines
933 B
CMake
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#=============================================================================
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# Copyright 2002-2012 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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# This module is shared by multiple languages; use include blocker.
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if(__COMPILER_CLANG)
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return()
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endif()
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set(__COMPILER_CLANG 1)
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include(Compiler/GNU)
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macro(__compiler_clang lang)
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__compiler_gnu(${lang})
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set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "-fPIE")
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set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-isystem ")
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endmacro()
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