[m-rev.] for review: fix smart recompilation with --target asm

[Fergus Henderson]

On 29-Jul-2001, Simon Taylor <stayl at cs.mu.OZ.AU> wrote:
> 
> Estimated hours taken: 1
> 
> Make smart recompilation work with --target asm.
> 
> compiler/mercury_compile.m:
> 	Delay starting the gcc backend until we are sure we need to
> 	compile to avoid overwriting the `.s' file when smart
> 	recompilation works out that recompilation is unnecessary.

That looks fine.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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