cpp-ethereum/deps/jsoncpp.cmake

#include(ExternalProject)
#ExternalProject_Add(jsoncpp-project
#    PREFIX deps/jsoncpp
#    URL https://github.com/open-source-parsers/jsoncpp/archive/1.7.7.tar.gz
#    URL_HASH SHA256=087640ebcf7fbcfe8e2717a0b9528fff89c52fcf69fa2a18cc2b538008098f97
#    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
#               # Build static lib but suitable to be included in a shared lib.
#               -DCMAKE_POSITION_INDEPENDENT_CODE=On
#               -DJSONCPP_WITH_TESTS=Off
#               -DJSONCPP_WITH_PKGCONFIG_SUPPORT=Off
#    # Overwtire build and install commands to force Release build on MSVC.
#    BUILD_COMMAND cmake --build <BINARY_DIR> --config Release
#    INSTALL_COMMAND cmake --build <BINARY_DIR> --config Release --target install
#)

# Create jsoncpp imported library
#ExternalProject_Get_Property(jsoncpp-project INSTALL_DIR)
# ./x86_64-linux-gnu/libjsoncpp.so
add_library(jsoncpp STATIC IMPORTED)
set(JSONCPP_LIBRARY /usr/lib/x86_64-linux-gnu/libjsoncpp.so)
set(JSONCPP_INCLUDE_DIR /usr/include)
# worth a shot
#file(MAKE_DIRECTORY ${JSONCPP_INCLUDE_DIR})  # Must exist.
set_property(TARGET jsoncpp PROPERTY IMPORTED_LOCATION ${JSONCPP_LIBRARY})
set_property(TARGET jsoncpp PROPERTY INTERFACE_INCLUDE_DIRECTORIES ${JSONCPP_INCLUDE_DIR})
add_dependencies(jsoncpp jsoncpp-project)
#unset(INSTALL_DIR)
#