Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppress'

Question

I was trying run gem install json and got the following error

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /System/Library/Framewo         


        

Answer 1

@Muncken has already provided an answer to install gem one by one:

ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future gem install GemName

Base on Muncken's answer, I've tried that it also works when using bundle install

ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future bundle install