I've upgraded to Snow Leopard, re-installed XCode, re-installed macports and when I try to install git I get:
:~ $ sudo port install git-core +svn
Error: Cannot install git-core for the arch(s) 'x86_64' because
Error: its dependency zlib is only installed for the arch 'i386'
Error: and the configured universal_archs 'i386 ppc' are not sufficient.
Error: Unable to execute port: architecture mismatch
Am I doing something wrong?