clang: error: unsupported option '-print-multi-os-directory'
clang: error: no input files
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi_convenience.a(ffi.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi_convenience.a(darwin.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi.a(ffi.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi.a(darwin.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi_convenience.a(ffi.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi_convenience.a(darwin.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi.a(ffi.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: .libs/libffi.a(darwin.o) has no symbols
mkdir: /Users/jenkins/w/cci_PR-3439/.conan/data/libffi/3.2.1/_/_/package/af96383df8ed9748d2eed48fb04099c5914a718f/lib: File exists
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /Users/jenkins/w/cci_PR-3439/.conan/data/libffi/3.2.1/_/_/package/af96383df8ed9748d2eed48fb04099c5914a718f/lib/libffi.a(ffi.o) has no symbols
/Applications/Xcode-9.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /Users/jenkins/w/cci_PR-3439/.conan/data/libffi/3.2.1/_/_/package/af96383df8ed9748d2eed48fb04099c5914a718f/lib/libffi.a(darwin.o) has no symbols
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


ld: warning: could not create compact unwind for _ffi_call_unix64: does not use RBP or RSP based frame