First, if you have trouble, or what's below does not work, sign up for See [this link](https://lists.openafs.org/pipermail/port-darwin/2011-August/001373.html) for some history To build on Mountain Lion, make sure you have Xcode and Packagemaker, and the following configure/build options have been reported to work: ARCHFLAGS="-arch i386 -arch x86_64" ./configure --enable-transarc-paths \ --with-krb5-conf=/usr/bin/krb5-config --enable-warnings --enable-checking ARCHFLAGS="-arch i386 -arch x86_64" make dest and then the installer is created, as root: ARCHFLAGS="-arch i386 -arch x86_64" make packages