rebuild static libs with Gabor's suggestion, namely libc++

Settled on the following arguments to cmake with the Xcode 5.1 Beta 4 command-line tools.

$ cmake -DCMAKE_INSTALL_PREFIX:PATH=/tmp/purgatorio -DCMAKE_OSX_DEPLOYMENT_TARGET= -DCMAKE_OSX_ARCHITECTURES="i386;x86_64" -DENABLE_FAST_MATH=ON -DCMAKE_CXX_FLAGS="-fvisibility-inlines-hidden -stdlib=libc++" -DBUILD_SHARED_LIBS=OFF -DWITH_CUDA=OFF -DWITH_FFMPEG=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF ..