CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY
    OPENSSL_SEARCH_PATH


/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../lib/libpaho-mqtt3as.a(SHA1.c.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../lib/libpaho-mqtt3as.a(SHA1.c.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /Users/jenkins/w/cci_PR-3382@2/.conan/data/paho-mqtt-c/1.3.4/_/_/package/038cd796817b60ddc9cc0ecfbf92f0c90bb82980/lib/libpaho-mqtt3as.a(SHA1.c.o) has no symbols
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY