UNARY
says
Xcode 5.1 Release Notes # The Apple LLVM compiler in Xcode 5.1 treats unrecognized cmd-line options as errors. This issue has been seen when building Python native extensions
UNARY
says
workaround example:
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install gevent --upgrade
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install gevent --upgrade
