ment for
new platforms.  You will typically not have to touch these.
If you are porting to an OS that
was previously completely unsupported, it is likely that you will
need to add another clause to the definition of <TT>GET_MEM</tt>.
</ol>
The following macros must be defined correctly for each architecture and operating
system:
<DL>
<DT><TT>MACH_TYPE</tt>
<DD>
Defined to a string that represents the machine architecture.  Usually
just the macro name used to identify the architecture, but enclosed in quotes