compile qemu in Mac

Tried many times, the following works in Mac Lion 10.7.5

./configure --cc=/opt/local/bin/gcc-mp-4.8 --enable-cocoa --target-list=i386-softmmu --audio-drv-list=coreaudio --audio-card-list=ac97,adlib,sb16 --prefix=/Users/peter/qemu

make

make install