setenv CVSROOT :ext:anoncvs@savannah.gnu.org:/cvsroot/emacs
cvs checkout emacs
cd emacs
# I put my installation in /opt/emacs, and the X build seems to mess up:
./configure --prefix=/opt/emacs --without-x
make bootstrap install
# one time only:
ln -s `pwd`/mac/Emacs.app ~/Desktop/