brew --config

% brew --config                                          :(
HOMEBREW_VERSION: 0.9.4
ORIGIN: https://github.com/mxcl/homebrew.git
HEAD: ba09af5da322ce5506be593629a20835702c5d26
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: quad-core 64-bit arrandale
OS X: 10.8.4-x86_64
Xcode: 5.0 => /Applications/Xcode5-DP5.app/Contents/Developer
CLT: 5.0.0.0.1.1372877146
GCC-4.2: build 5666
LLVM-GCC: build 2336
Clang: 5.0 build 500
X11: 2.7.4 => /opt/X11
System Ruby: 1.8.7-358
Perl: /usr/bin/perl
Python: /usr/bin/python
Ruby: /Users/msch/.rvm/rubies/ruby-2.0.0-p195/bin/ruby

brew doctor

% brew doctor                                            :(
Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
    /usr/local/lib/libmacfuse_i32.2.dylib
    /usr/local/lib/libmacfuse_i64.2.dylib
    /usr/local/lib/libosxfuse_i32.2.dylib
    /usr/local/lib/libosxfuse_i64.2.dylib

Warning: Unbrewed .la files were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected .la files:
    /usr/local/lib/libosxfuse_i32.la
    /usr/local/lib/libosxfuse_i64.la

Warning: Unbrewed .pc files were found in /usr/local/lib/pkgconfig.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected .pc files:
    /usr/local/lib/pkgconfig/osxfuse.pc

Warning: Some keg-only formula are linked into the Cellar.
Linking a keg-only formula, such as gettext, into the cellar with
`brew link <formula>` will cause other formulae to detect them during
the `./configure` step. This may cause problems when compiling those
other formulae.

Binaries provided by keg-only formulae may override system binaries
with other strange results.

You may wish to `brew unlink` these brews:

    libxml2
    ossp-uuid
brew doctor  3,38s user 1,83s system 42% cpu 12,394 total

brew install erlang-r16 --with-wxmac

% brew install erlang-r16 --with-wxmac                 :(
==> Downloading https://github.com/erlang/otp/archive/OTP_R16B01.tar.gz
Already downloaded: /Library/Caches/Homebrew/erlang-r16-R16B01.tar.gz
==> Compilation takes a long time; use `brew install -v erlang` to see progress
==> ./otp_build autoconf
==> ./configure --prefix=/usr/local/Cellar/erlang-r16/R16B01 --enable-kernel-poll --enable-threads --enab
==> make
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [../priv/x86_64-apple-darwin12.4.0/wxe_driver.so] Error 1
make[2]: *** [opt] Error 2
make[1]: *** [opt] Error 2
make: *** [libs] Error 2

READ THIS: https://github.com/mxcl/homebrew/wiki/troubleshooting

brew install erlang-r16 --with-wxmac  1377,79s user 145,76s system 195% cpu 12:58,18 total