Re: [PATCH] make miniconfig (take 2)

[Pavel Machek <pavel@ucw.cz>]

Hi!

On So 26-11-05 06:25:30, Rob Landley wrote:
> On Friday 25 November 2005 20:34, Kyle Moffett wrote:
> > I got interested so I started writing a Perl-based replacement that
> > actually reads the source config into program memory and writes
> > copies out of that RAM each time.
> 
> I did several variants before settling on the one I submitted as "least sucky 
> for right now".  (Starting from zero and adding lines did not work at _all_, 
> and trying to produce consecutively smaller diffs isn't a winner either.  
> Anything fancy based on diff runs into the fact that dependencies can enable 
> stuff _earlier_ in the file, and it's almost impossible to parse.  Besides, 
> diff is noticeably faster when there are few changes, so this was the best 
> performer of the lot too...)
> 
> And I try to avoid perl dependencies in the linux build process.  When you do 
> cross-compiles that make a minimal toolchain (ala the Linux From Scratch 
> "/tools" directory) and then chroot into it to create the new system, having 
> to add perl to the mess is a disproprotionate hassle.

I'd say "don't worry about that, yet".

> Also, zappable lines tend to clump, so if it gets 2 zappable lines in a row it 
> could speculatively try zapping 2 at a time to see if it makes faster 
> progress.  (The down side is the extra allnoconfig runs for backing up and 
> iterating through on failures to see _which_ ones made a difference.  That's 
> not low-hanging fruit, may not be edible at all...)

Can't you just filter out all the comments beforehand?
								Pavel
-- 
Thanks, Sharp!
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