Last 10 log lines: checking host system type... x86_64-apple-darwin16.7.0 checking target system type... x86_64-apple-darwin16.7.0 checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... configure: error: in `/var/folders/9s/64j0hkxj5m97r6b6bqf7kx0m0000gn/T/ruby-build.201
