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annotate Resources/CMake/JsonCppConfiguration.cmake @ 1947:c1053112b323

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Switch to the C++11 standard if the version of JsonCpp is 1.y.z
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 05 Apr 2016 10:11:40 +0200
parents fbf763bb1fa3
children 326fdda31b42
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1 if (STATIC_BUILD OR NOT USE_SYSTEM_JSONCPP)
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2 set(JSONCPP_SOURCES_DIR ${CMAKE_BINARY_DIR}/jsoncpp-0.10.5)
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3 set(JSONCPP_URL "http://www.montefiore.ulg.ac.be/~jodogne/Orthanc/ThirdPartyDownloads/jsoncpp-0.10.5.tar.gz")
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4 set(JSONCPP_MD5 "db146bac5a126ded9bd728ab7b61ed6b")
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5
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6 DownloadPackage(${JSONCPP_MD5} ${JSONCPP_URL} "${JSONCPP_SOURCES_DIR}")
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7
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8 set(JSONCPP_SOURCES
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9 ${JSONCPP_SOURCES_DIR}/src/lib_json/json_reader.cpp
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10 ${JSONCPP_SOURCES_DIR}/src/lib_json/json_value.cpp
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11 ${JSONCPP_SOURCES_DIR}/src/lib_json/json_writer.cpp
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12 )
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13
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14 include_directories(
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15 ${JSONCPP_SOURCES_DIR}/include
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16 )
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18 source_group(ThirdParty\\JsonCpp REGULAR_EXPRESSION ${JSONCPP_SOURCES_DIR}/.*)
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19
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20 else()
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21 find_path(JSONCPP_INCLUDE_DIR json/reader.h
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22 /usr/include/jsoncpp
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23 /usr/local/include/jsoncpp
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24 )
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25
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26 message("JsonCpp include dir: ${JSONCPP_INCLUDE_DIR}")
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27 include_directories(${JSONCPP_INCLUDE_DIR})
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28 link_libraries(jsoncpp)
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29
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30 CHECK_INCLUDE_FILE_CXX(${JSONCPP_INCLUDE_DIR}/json/reader.h HAVE_JSONCPP_H)
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31 if (NOT HAVE_JSONCPP_H)
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32 message(FATAL_ERROR "Please install the libjsoncpp-dev package")
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33 endif()
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34
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35 # Switch to the C++11 standard if the version of JsonCpp is 1.y.z
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36 message(${JSONCPP_INCLUDE_DIR}/json/version.h)
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37 if (EXISTS ${JSONCPP_INCLUDE_DIR}/json/version.h)
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38 file(STRINGS
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39 "${JSONCPP_INCLUDE_DIR}/json/version.h"
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40 JSONCPP_VERSION_MAJOR1 REGEX
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41 ".*JSONCPP_VERSION_MAJOR .*")
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42 string(REGEX REPLACE
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43 ".*JSONCPP_VERSION_MAJOR ([0-9]+)\\s*$" "\\1"
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44 JSONCPP_VERSION_MAJOR ${JSONCPP_VERSION_MAJOR1})
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45 message("JsonCpp major version: ${JSONCPP_VERSION_MAJOR}")
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46
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47 if (CMAKE_COMPILER_IS_GNUCXX AND
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48 JSONCPP_VERSION_MAJOR GREATER 0)
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49 message("Switching to C++11 standard, as version of JsonCpp is >= 1.0.0")
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50 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
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51 endif()
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52 else()
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53 message("Unable to detect the major version of JsonCpp, assuming < 1.0.0")
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54 endif()
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55
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56 endif()