Tracelib/Extensions/Portable/Includes:

This directory contains header files used with or by the portable
extensions to the Pablo instrumentation library.  Some files may be
useful to applications which use the relevant extensions, others may
be useful only to the extension code itself.

Files here are:
	MesgTrace.h	Used by MesgTrace.c in the directory above
	IOtrace.h	Used by IOtrace.c in the directory above
