Erlang failing to build on OS X 10.9

gistfile1.sh

brew: superenv removed: -m64                                                                                                        [16/1943]
Undefined symbols for architecture x86_64:
  "___sync_val_compare_and_swap_1", referenced from:
      _ethr_dw_atomic_cmpxchg in libethread.a(ethr_atomics.o)
      _ethr_dw_atomic_cmpxchg_ddrb in libethread.a(ethr_atomics.o)
      _ethr_dw_atomic_cmpxchg_rb in libethread.a(ethr_atomics.o)
      _ethr_dw_atomic_cmpxchg_wb in libethread.a(ethr_atomics.o)
      _ethr_dw_atomic_cmpxchg_acqb in libethread.a(ethr_atomics.o)
      _ethr_dw_atomic_cmpxchg_relb in libethread.a(ethr_atomics.o)
      _ethr_dw_atomic_cmpxchg_mb in libethread.a(ethr_atomics.o)
      ...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [/private/tmp/erlang-h2cL/otp-OTP_R15B03-1/bin/i386-apple-darwin13.0.0/beam.smp] Error 1
make[2]: *** [opt] Error 2
make[1]: *** [smp] Error 2
make: *** [emulator] Error 2
==> Configuration
HOMEBREW_VERSION: 0.9.4
HEAD: f8a50a75df4c6996e2b206f864119c4f35193845
CPU: quad-core 64-bit haswell
OS X: 10.9-x86_64
Xcode: 5.0 => /Applications/Xcode5-DP.app/Contents/Developer
X11: N/A
==> ENV
HOMEBREW_CC: clang
MAKEFLAGS: -j4

I was able to work around this error by using gcc to compile. Here's what I did:

brew tap homebrew/dupes
brew install apple-gcc42
brew install -v --use-gcc erlang-r16