Hi Bill, > all that should be needed after building and installing the Boost libraries > is to include the path where they are installed in the CMAKE_PREFIX_PATH
CMake knows there the boost libraries are. For instance: -- Building wsjtx v2.3.0.0-rc2 -- Found Boost 1.70.0 at /usr/local/lib/cmake/Boost-1.70.0 -- Requested configuration: QUIET REQUIRED COMPONENTS log_setup;log -- Found boost_headers 1.70.0 at /usr/local/lib/cmake/boost_headers-1.70.0 -- Found boost_log_setup 1.70.0 at /usr/local/lib/cmake/boost_log_setup-1.70.0 -- libboost_log_setup.a -- Adding boost_log_setup dependencies: atomic;chrono;date_time;filesystem;log;regex;thread;headers -- Found boost_atomic 1.70.0 at /usr/local/lib/cmake/boost_atomic-1.70.0 -- libboost_atomic.a … -- Found boost_thread 1.70.0 at /usr/local/lib/cmake/boost_thread-1.70.0 -- libboost_thread.a -- Adding boost_thread dependencies: headers It has found what it seems to need. The problem about linking remains: Undefined symbols for architecture x86_64: "boost::log::v2_mt_posix::attributes::timer::timer()", referenced from: Logger::(anonymous namespace)::CommonInitialization::CommonInitialization() in libwsjt_cxx.a(Logger.cpp.o) and many more similarly. /usr/local/lib has: file libboost*.dylib libboost_atomic.dylib: Mach-O 64-bit dynamically linked shared library x86_64 libboost_chrono.dylib: Mach-O 64-bit dynamically linked shared library x86_64 libboost_container.dylib: Mach-O 64-bit dynamically linked shared library x86_64 What symbols are not defined in the dylibs…? — John G4KLA
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