49 lines
2.2 KiB
CMake
49 lines
2.2 KiB
CMake
# This is cloned from
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# https://github.com/nitroshare/CXX11-CMake-Macros
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# until C++11 support finally hits CMake stable (should be 3.1, I think).
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# Copyright (c) 2013 Nathan Osman
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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# Determines whether or not the compiler supports C++11
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macro(check_for_cxx11_compiler _VAR)
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message(STATUS "Checking for C++11 compiler")
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set(${_VAR})
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if((MSVC AND (MSVC10 OR MSVC11 OR MSVC12 OR MSVC14)) OR
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(CMAKE_COMPILER_IS_GNUCXX AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.6) OR
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(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.1) OR
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(CMAKE_CXX_COMPILER_ID STREQUAL "Intel" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 12.0))
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set(${_VAR} 1)
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message(STATUS "Checking for C++11 compiler - available")
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else()
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message(STATUS "Checking for C++11 compiler - unavailable")
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endif()
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endmacro()
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# Sets the appropriate flag to enable C++11 support
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macro(enable_cxx11)
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if(CMAKE_COMPILER_IS_GNUCXX OR
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CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR
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CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
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endif()
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endmacro()
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