[m-dev.] for review: document fix for tcl/tk gc problem

[Mark Anthony BROWN]

Fergus Henderson writes:
> 
> Could someone please review this one?
> 
> --------------------
> 
> Estimated hours taken: 0.25
> 	(+ lots of work to find the bug in the first place).
> 
> extras/graphics/mercury_tcltk/HOWTO:
> 	Document the need to link with a version of libgc that was
> 	compiled with `-DALL_INTERIOR_POINTERS'.
> 

That looks ok.

-- 
Mark Brown  (dougl at cs.mu.oz.au)       )O+   |  For Microsoft to win,
MEngSc student,                             |  the customer must lose
Dept of Computer Science, Melbourne Uni     |          -- Eric S. Raymond