Re: parallel translation

["Jeffrey R. Carter" <spam.jrcarter.not@acm.nospam.org>]

Georg Bauhaus wrote:
> 
> P1 (in file "p1.ads", say) depends on P2 (in file "p2.ads", say).
> I am assuming that Task 1 is supposed to compile P1, and task 2
> is supposed to compile P2. An elaboration order will have to be
> established in order to translate almost anything. Here, for
> example, task 1 (compiling P1) must know what is in P2 (compiled
> in task 2) because P1 depends on P2. How do the compilers etc.
> communicate?

No, GNAT is source based. The compilation of P1 will read p2.ads; the 
compilation of P2 will read p2.ads and p2.adb (if needed). The compilation of P1 
need not wait for P2 to be compiled.

If P1 depends on the body of P2 (perhaps by calling an inlined subprogram with 
-gnatn), then you have a problem similar to what you described. I'm not sure how 
GNAT handles this, but perhaps the task compiling P1 can wait until appropriate 
versions of p2.ali and p2.o are created.

-- 
Jeff Carter
"Go and boil your bottoms."
Monty Python & the Holy Grail
01