Upcoming changes

Just wanted to make a note that for the next snapshot a basic cross-compile is needed. For x86, the cross-compile fixes a bug in tracing/debug:arg for sse2 builds. Any floating-point values were basically random. In addition, two new slots are being added to fd-streams. The two new slots are not yet used but will be used to control how errors are handled in stream I/O. This also uses a cross-compile. When the cross-compile complains about incompatible structures, just select the CLOBBER-IT restart each time cmucl complains. Ray