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A question about Makefile

From: Jed Jia
Subject: A question about Makefile
Date: Wed, 8 Dec 2010 11:55:11 +0800

Take a look at the following Makefile:

> x: obj/./t
>     touch x
> obj/t: a
>     touch obj/t

but make outputs:
> make: *** No rule to make target `obj/./t', needed by `x'.  Stop.

If I change "obj/./t" to "obj/t", everything works fine

But the following Makefile also works fine:
> x: ./t
>     touch x
> t: a
>     touch t

So, how does the make dependency resolver work when there is an
un-normalized path? Or is there a way to tell make to resolve obj/./t


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