Re: $(eval ) and $(shell )

[CHEN Cheng]

On Fri, Jul 03, 2009 at 03:15:18PM -0600, Philip Guenther wrote:
> On Fri, Jul 3, 2009 at 12:03 AM, CHEN Cheng<address@hidden> wrote:
> > On Fri, Jul 03, 2009 at 02:55:53PM +1000, address@hidden wrote:
...cut...
> Well, not quite.  $(eval) doesn't get a pass of its own.  Instead, it
> results in make going back and redoing an earlier step on new text.
> 
> The order is more like
> 
> 1) read the makefile, performing immediate expansions (per "3.9 How
> `make' Reads a Makefile") as they are encountered.  This includes all
> processing of conditionals (ifdef, etc) and includes.  Note that
> top-level variable expansions, such as the use of $(eval) in the
> original post, are performed at this point.

You are right, Philip. I should have read the manual twice before
I proposed the 'analysis', Oh I'm sorry.

To fix this mental bug essentially, I have started reading the source
code, but it'd take a long time I guess.


Best regards,
-Cheng