I'd say make it a build option (PNG_COMPRESS)
0: no compression
1: pngcrush with hardcoded optimization choice
2: advpng
defaults:
debug:0
unstable release: 1
stable release: 2
Raphaël
2010/11/22 Adam Borowski <kilob...@angband.pl>
> I wonder what rules on optimizations that increase build time we'd want.
>
> Some of us (due, sorear) code on very slow machines, and I don't want to
> hurt them badly; some changes can make concrete gains, though.
>
> For example, pngcrush shaves 700KB off binary downloads, and I later
> learned
> that advpng can make that 840.
>
> The time cost on a machine that does "make TILES=y -j4" in 2m48.483s, is
> (-j1):
> 19s pngcrush
> 8s pngcrush with hardcoded optimization choice
> 37s advpng
>
> This may be just a 5% slowdown, but then, it's another ~1.5 minute on slow
> machines...
>
> For now, I made it do these optimizations whenever you do a build that
> optimizes code. Ie, any but "debug", "NO_OPTIMIZE=y" or "HURRY=y".
> Not having advancecomp nor pngcrush installed will have the same effect.
>
> Is this ok with you?
>
>
> (These are optimizations of built packages, not of source.)
> --
> 1KB // Microsoft corollary to Hanlon's razor:
> // Never attribute to stupidity what can be
> // adequately explained by malice.
>
>
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