configure: WARNING: unrecognized options: --without-gcc
Configured with: --prefix=/Applications/Xcode-9.4.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode-9.4.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/c++/4.2.1
Terminated: 15
ERROR: Exiting with code: 5