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# it must be a macro cause policies have scopes
# http://www.cmake.org/cmake/help/v3.0/command/cmake_policy.html
macro (eth_policy)
# link_directories() treats paths relative to the source dir.
cmake_policy(SET CMP0015 NEW)
# let cmake autolink dependencies on windows
cmake_policy(SET CMP0020 NEW)
if (${CMAKE_VERSION} VERSION_GREATER 3.0)
# fix MACOSX_RPATH
cmake_policy(SET CMP0042 OLD)
# ignore COMPILE_DEFINITIONS_<Config> properties
cmake_policy(SET CMP0043 OLD)
# allow VERSION argument in project()
cmake_policy(SET CMP0048 NEW)
endif()
if (${CMAKE_VERSION} VERSION_GREATER 3.1)
# do not interpret if() arguments as variables!
cmake_policy(SET CMP0054 NEW)
endif()
endmacro()
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