Subject: Re: WIP: About CMake v2
To: Tom Lane <tgl@sss.pgh.pa.us>, Peter Eisentraut
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From: Jim Nasby <Jim.Nasby@BlueTreble.com>
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Date: Wed, 8 Feb 2017 15:55:34 -0600
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On 2/8/17 3:52 PM, Tom Lane wrote:
> For my own purposes, the only thing that I find seriously annoying about
> the status quo is the amount of time required to run "configure".  For
> me, that step is usually comparable to or even more than the time to
> do the build proper, because (a) ccache and (b) multiple CPUs.
> configure isn't parallelizable, and there's probably nothing that
> can be done about that.  If CMake offers a substantial improvement
> in configuration time then that would be attractive.  Otherwise I'd
> just as soon see us put the effort into making the MSVC scripts more
> robust and able to pull more data from the makefiles.

FWIW, I've had good luck adding -C to configure to cache the output. I'd 
guess it's at least 10x faster on my laptop.

Obviously doesn't help if you're doing where you're testing something 
that alters config output. In those cases I'll either edit config.cache 
and delete the relevant lines or just temporarily move it out of the way 
(or just nuke it...).
-- 
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
855-TREBLE2 (855-873-2532)


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