Can't install Genghis on Mac. [Mavericks]

[LeCoupa]

I have Xcode and the command line tools installed. But when running "sudo gem install genghisapp", the following error appears:

ERROR:  Error installing genghisapp:
    ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
creating Makefile

make "DESTDIR="
compiling generator.c
linking shared-object json/ext/generator.bundle
clang: error: unknown argument: '-multiply_definedsuppress' [-Wunused-command-line-argument-hard-error-in-future]
clang: note: this will be a hard error (cannot be downgraded to a warning) in the future
make: *** [generator.bundle] Error 1

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/json-1.8.1 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/json-1.8.1/ext/json/ext/generator/gem_make.out

What should I do? I'm on Mavericks.

[bobthecow]

That's a good question. I don't use the system Ruby on my Mavericks box, so I've never run into this.

It appears that the problem is with compiling the json gem. Since Mavericks has Ruby 2.x, it already has JSON built in, so I'm not sure why it would even need to compile the gem :-/

I'll look into this.

[rwilcox]

The bug in the json project: flori/json#200

[bobthecow]

@rwilcox :+1: Thanks for the link.

[LeCoupa]

Thank you!

[sodabrew]

Hey all, this was resolved by OS X 10.9.3 and by XCode 5.1.1 without any system file patching.

[bobthecow]

Awesome :)