Result from https://twitter.com/timtyrrell/status/167356426061230082 on snow leopard

output.log

Installed RVM master version:

rvm 1.10.2 by Wayne E. Seguin <[email protected]>, Michal Papis <[email protected]> [https://rvm.beginrescueend.com/]

RVM reloaded!
RVM reloaded!
Fetching yaml-0.1.4.tar.gz to /Users/jc/.rvm/archives
Extracting yaml-0.1.4.tar.gz to /Users/jc/.rvm/src
Configuring yaml in /Users/jc/.rvm/src/yaml-0.1.4.
Compiling yaml in /Users/jc/.rvm/src/yaml-0.1.4.
Installing yaml to /Users/jc/.rvm/usr
Installing Ruby from source to: /Users/jc/.rvm/rubies/ruby-1.9.3-p0-falcon, this may take a while depending on your cpu(s)...

ruby-1.9.3-p0-falcon - #fetching 
ruby-1.9.3-p0-falcon - #extracted to /Users/jc/.rvm/src/ruby-1.9.3-p0-falcon (already extracted)
ruby-1.9.3-p0-falcon - #configuring 
ruby-1.9.3-p0-falcon - #compiling 
Error running 'make ', please read /Users/jc/.rvm/log/ruby-1.9.3-p0-falcon/make.log
There has been an error while running make. Halting the installation.

ruby-1.9.3-p0-falconmake.log

[2012-02-08 13:19:11] make 
	CC = /usr/bin/gcc-4.2
	LD = ld
	LDSHARED = /usr/bin/gcc-4.2 -dynamiclib
	CFLAGS = -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=shorten-64-to-32 -Werror=implicit-function-declaration  -fno-common -pipe
	XCFLAGS = -include ruby/config.h -include ruby/missing.h -fvisibility=hidden -DRUBY_EXPORT
	CPPFLAGS = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -I. -I.ext/include/x86_64-darwin10.8.0 -I./include -I.
	DLDFLAGS = -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace -install_name /Users/jc/.rvm/rubies/ruby-1.9.3-p0-falcon/lib/libruby.1.9.1.dylib -current_version 1.9.1 -compatibility_version 1.9.1 -Wl,-unexported_symbol,_Init_* -Wl,-unexported_symbol,*_threadptr_*  -Wl,-u,_objc_msgSend   
	SOLIBS = 
compiling miniprelude.c
In file included from miniprelude.c:8:
vm_core.h:302: error: duplicate member ‘load_path_expanded_cache’
vm_core.h:303: error: duplicate member ‘load_path_expanded_cache’
make: *** [miniprelude.o] Error 1