Done a major overhaul of the way target include files are installed and

how platform libraries are built. The ARCH pm variable has now been
renamed PLATFORM (which is more accurate) and a different ARCH
variable added, which represents the CPU family rather than the
hardware platform.

first/ack.pm

@@ -3,7 +3,7 @@
 
 -- Provides rules for building things with the half-built ACK itself.
 
-ACKBUILDFLAGS = {"-m%ARCH%", "%OPTIMISATION%"}
+ACKBUILDFLAGS = {"-m%PLATFORM%", "%OPTIMISATION%"}
 ACKDEFINES = EMPTY
 ACKINCLUDES = EMPTY