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annotate cmake/MalikaniaSystem.cmake @ 0:8991989c4708

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Initial import
author David Demelier <markand@malikania.fr>
date Tue, 22 Mar 2016 18:26:05 +0100
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children a1e80d991968
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1 #
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2 # CMakeLists.txt -- CMake build system for malikania
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3 #
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4 # Copyright (c) 2013-2016 Malikania Authors
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5 #
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6 # Permission to use, copy, modify, and/or distribute this software for any
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7 # purpose with or without fee is hereby granted, provided that the above
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8 # copyright notice and this permission notice appear in all copies.
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9 #
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10 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 #
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18
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19 #
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20 # Recent versions of CMake has nice C++ feature detection for modern
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21 # C++ but they are still a bit buggy so we use this
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22 # instead.
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23 #
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24 if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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25 #
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26 # For GCC, we require at least GCC 5.1
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27 #
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28 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.1")
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29 message(FATAL_ERROR "You need at least GCC 5.1")
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30 endif ()
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31
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32 set(CMAKE_CXX_FLAGS "-Wall -Wextra -std=c++14 ${CMAKE_CXX_FLAGS}")
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33 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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34 #
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35 # LLVM/clang implemented C++14 starting from version 3.4 but the
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36 # switch -std=c++14 was not available.
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37 #
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38 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.4")
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39 message(FATAL_ERROR "You need at least Clang 3.4")
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40 endif ()
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41
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42 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5")
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43 set(CMAKE_CXX_FLAGS "-Wall -Wextra -std=c++1y ${CMAKE_CXX_FLAGS}")
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44 else ()
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45 set(CMAKE_CXX_FLAGS "-Wall -Wextra -std=c++14 ${CMAKE_CXX_FLAGS}")
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46 endif ()
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47 else ()
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48 message(WARNING "Unsupported ${CMAKE_CXX_COMPILER_ID}, may not build correctly.")
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49 endif ()
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50
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51 if (MINGW)
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52 set(CMAKE_CXX_FLAGS "-D_WIN32_WINNT=0x0600 ${CMAKE_CXX_FLAGS}")
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53 endif ()