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Date:      Sun, 25 Mar 2012 18:33:47 +0100
From:      Matthew Seaman <matthew@FreeBSD.org>
To:        freebsd-ports@FreeBSD.org
Subject:   Re: _DEPENDS+= and make index speed
Message-ID:  <4F6F56FB.4030704@FreeBSD.org>
In-Reply-To: <c96eefe5-9e60-4756-b4dc-b3c429326e71@blur>
References:  <c96eefe5-9e60-4756-b4dc-b3c429326e71@blur>

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On 25/03/2012 17:22, Michael Scheidell wrote:
> I don't think it  hurts anything but if you have a bunch of ports
> doing this, doesn't it have to slow down make index? The extra check
> for, reassign and cat an undefined var has to take more cpu than a
> strict assign, right or am I just nitpicking?

Unlikely to make a significant difference.  Most of the time in building
the INDEX is spent doing file IO -- opening all those Makefiles, and the
files they include, etc., ad nauseam. -- and then parsing the thousands
of lines of make code.  And then doing all over again for the next port.

Couple of assignments using +=3D in a couple of port specific Makefiles
isn't much compared to that.

	Cheers,

	Matthew

--=20
Dr Matthew J Seaman MA, D.Phil.
PGP: http://www.infracaninophile.co.uk/pgpkey



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