in the wrong place - failed to check properly!

no EXPORT or GLOBAL section - unitialized variable being used!

eg. malloc(sizeof(t)) should be malloc(sizeof(struct t)) !!

in a nice state now..
-- output file is selected and stored globally rather than being
   passed around all the time;
-- implicit NULL tests are now explicit;
-- some details of the generated code are different now.

used fputs instead of fprintf for efficiency
added if( print ) checks.
and print and verbose as public variables (set by main)

then added the indentation system,
ie. numtabs, indent(), outdent(), line().
seems to work so far.
still empty unions generated though.

not used to alter code gen yet.

also: TRUE and FALSE were wrong way round (oops)
and I have removed ABORT.. explicit error mesgs on stderr now.

renamed some procedures.
some silly little { onto new lines.
important change: added the print functions and prototypes.