SBCL 0.8.8 has been released, and contains the OS X patch I previously maintained in the main distribution. No more patching! Big big thank you to Brian Downing for cleaning up the build process in the patch so it was cleanly buildable; I clearly lack any sort of abilities with make. Oh well. Big thank you also to Pierre Mai for finding the source of the RUN-PROGRAM bugs and to Christophe Rhodes for fixing the SIGTRAP handler to reflect this. Owners of single-processor machines rejoice in their SBCL buildability.
Hopefully binaries should be available shortly for a broad variety of platforms and uploaded in the UK morning. OS X binaries are prepared, and binaries for many of our other architectures that haven't seen binaries in a little while are also being built.
One thing that has come to my attention is that setting LD_PREBIND to YES on OS X interferes with SBCL buildability. You will have to unset this before building SBCL.