[mercury-users] DateStamps and Targets

[Fergus Henderson]

On 15-Oct-2002, Noel  Pinto <cool4life at rediffmail.com> wrote:
> I want to know what is the difference between time stamps and date 
> stamps.

There is no difference.  These two terms are used interchangably
to describe something that records *both* a date and a time.

(Probably we should have just used the phrase "time stamp" 
consistently throughout the user manual.)

> Targets are 'main-module.depend', 'main-module.ints' and more. I 
> want to know what is MAIN_TARGET in respect with other targets.  I 
> really cannot figure why is it needed?? and also how is it 
> used??

If you type `mmake' and you don't specify any target, then it will
build the target specified by the MAIN_TARGET variable.

For example, your Makefile could contain

	depend: myprog.depend
	all: myprog

	MAIN_TARGET = do_it_all

	do_it_all:
		mmake depend
		mmake all

Then, if you type `mmake', it has the same effect as typing
`mmake do_it_all'.

-- 
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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