CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libtorrent-rasterbar.a(sha1.cpp.o) has no symbols /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libtorrent-rasterbar.a(sha512.cpp.o) has no symbols /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libtorrent-rasterbar.a(sha1.cpp.o) has no symbols /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libtorrent-rasterbar.a(sha512.cpp.o) has no symbols CMake Warning (dev) at source_subfolder/torrent-rasterbar-pkgconfig/compile-settings-expanded.cmake:3 (set): Policy CMP0053 is not set: Simplify variable reference and escape sequence evaluation. Run "cmake --help-policy CMP0053" for policy details. Use the cmake_policy command to set the policy and suppress this warning. For input: ';@CMAKE_INSTALL_PREFIX@/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/boost/1.73.0/_/_/package/06805efa386accf14d38f9769539c6e94cd8e1a4/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/openssl/1.1.1h/_/_/package/4f892a0d0107b794d837128fbfc6812497252e9f/include' the old evaluation rules produce: ';/Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/boost/1.73.0/_/_/package/06805efa386accf14d38f9769539c6e94cd8e1a4/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/openssl/1.1.1h/_/_/package/4f892a0d0107b794d837128fbfc6812497252e9f/include' but the new evaluation rules produce: ';@CMAKE_INSTALL_PREFIX@/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/boost/1.73.0/_/_/package/06805efa386accf14d38f9769539c6e94cd8e1a4/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/openssl/1.1.1h/_/_/package/4f892a0d0107b794d837128fbfc6812497252e9f/include' Using the old result for compatibility since the policy is not set. Call Stack (most recent call first): source_subfolder/torrent-rasterbar-pkgconfig/generate-pkg-config.cmake:1 (include) source_subfolder/cmake_install.cmake:36 (include) cmake_install.cmake:37 (include) This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at source_subfolder/torrent-rasterbar-pkgconfig/generate-pkg-config.cmake:29 (list): Policy CMP0007 is not set: list command no longer ignores empty elements. Run "cmake --help-policy CMP0007" for policy details. Use the cmake_policy command to set the policy and suppress this warning. List has value = [/Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/lib;;;/Users/jenkins/w/cci_PR-2684@2/.conan/data/openssl/1.1.1h/_/_/package/4f892a0d0107b794d837128fbfc6812497252e9f/lib;/Users/jenkins/w/cci_PR-2684@2/.conan/data/openssl/1.1.1h/_/_/package/4f892a0d0107b794d837128fbfc6812497252e9f/lib]. Call Stack (most recent call first): source_subfolder/torrent-rasterbar-pkgconfig/generate-pkg-config.cmake:36 (split_library_dirs) source_subfolder/cmake_install.cmake:36 (include) cmake_install.cmake:37 (include) This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at source_subfolder/torrent-rasterbar-pkgconfig/generate-pkg-config.cmake:5 (list): Policy CMP0007 is not set: list command no longer ignores empty elements. Run "cmake --help-policy CMP0007" for policy details. Use the cmake_policy command to set the policy and suppress this warning. List has value = [;/Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/boost/1.73.0/_/_/package/06805efa386accf14d38f9769539c6e94cd8e1a4/include;/Users/jenkins/w/cci_PR-2684@2/.conan/data/openssl/1.1.1h/_/_/package/4f892a0d0107b794d837128fbfc6812497252e9f/include]. Call Stack (most recent call first): source_subfolder/torrent-rasterbar-pkgconfig/generate-pkg-config.cmake:47 (cmake_list_to_pkg_config) source_subfolder/cmake_install.cmake:36 (include) cmake_install.cmake:37 (include) This warning is for project developers. Use -Wno-dev to suppress it. /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/lib/libtorrent-rasterbar.a(sha1.cpp.o) has no symbols /Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/lib/libtorrent-rasterbar.a(sha512.cpp.o) has no symbols CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY ld: warning: direct access in function 'std::__1::__shared_ptr_pointer, std::__1::allocator > >*, std::__1::default_delete, std::__1::allocator > > >, std::__1::allocator, std::__1::allocator > > > >::__get_deleter(std::type_info const&) const' from file '/Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/lib/libtorrent-rasterbar.a(session_impl.cpp.o)' to global weak symbol 'typeinfo for std::__1::default_delete, std::__1::allocator > > >' from file '/Users/jenkins/w/cci_PR-2684@2/.conan/data/libtorrent/1.2.3/_/_/package/deca20b74e9c1267e0676bbacc6e920202d727bc/lib/libtorrent-rasterbar.a(udp_socket.cpp.o)' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings.