I have some trouble installing PyQt on my Mac.

HOMEBREW_VERSION: 0.9.5
ORIGIN: https://github.com/Homebrew/homebrew.git
HEAD: d8af29d63a5b94ffee863788210c3a895315035f
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: quad-core 64-bit sandybridge
OS X: 10.9.3-x86_64
Xcode: 5.1.1
CLT: 5.1.0.0.1.1396320587
Clang: 5.1 build 503
MacPorts/Fink: /opt/local/bin/port
X11: 2.7.6 => /opt/X11
System Ruby: 2.0.0-451
Perl: /usr/bin/perl
Python: /opt/local/bin/python => /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Ruby: /usr/bin/ruby

sip installation ok
qt installation ok

brew install pyqt

=> make
1 error generated.
make[1]: *** [qtlib.o] Error 1
1 error generated.
make[1]: *** [siplib.o] Error 1
make: *** [all] Error 2

No idea what's happening...