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Merge pull request #4528 from guidovranken/propagate_CMAKE_CXX_FLAGS_jsoncpp

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Propagate original CMAKE_CXX_FLAGS to jsoncpp compilation
This commit is contained in:
Alex Beregszaszi 2018-08-08 13:28:10 +01:00 committed by GitHub
commit 22461ca939
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1 changed files with 11 additions and 3 deletions
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14
cmake/jsoncpp.cmake
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@ -10,8 +10,16 @@ set(prefix "${CMAKE_BINARY_DIR}/deps")
set(JSONCPP_LIBRARY "${prefix}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}jsoncpp${CMAKE_STATIC_LIBRARY_SUFFIX}")
set(JSONCPP_INCLUDE_DIR "${prefix}/include")
if(NOT MSVC)
set(JSONCPP_EXTRA_FLAGS "-std=c++11")
# TODO: Investigate why this breaks some emscripten builds and
# check whether this can be removed after updating the emscripten
# versions used in the CI runs.
if(EMSCRIPTEN)
# Do not include all flags in CMAKE_CXX_FLAGS for emscripten,
# but only use -std=c++11. Using all flags causes build failures
# at the moment.
set(JSONCPP_CXX_FLAGS -std=c++11)
else()
set(JSONCPP_CXX_FLAGS ${CMAKE_CXX_FLAGS})
endif()
set(byproducts "")
@ -34,7 +42,7 @@ ExternalProject_Add(jsoncpp-project
-DCMAKE_POSITION_INDEPENDENT_CODE=${BUILD_SHARED_LIBS}
-DJSONCPP_WITH_TESTS=OFF
-DJSONCPP_WITH_PKGCONFIG_SUPPORT=OFF
-DCMAKE_CXX_FLAGS=${JSONCPP_EXTRA_FLAGS}
-DCMAKE_CXX_FLAGS=${JSONCPP_CXX_FLAGS}
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
${byproducts}
)