Kornel
80f8d935fb75832b1f13199d356cedd5326c949e removes Cocoa reader from C/Makefile toolchain, and it's available only if built via Rust/Cargo.
The 1.0 version doesn't support `-V` :)
There is version number printed when you run `pngquant -v`
Unfortunately I don't have tests good enough for distribution. I test the command using DSSIM and a set of thousands of images, too large and problematic to redistribute. The make...
Does the existing `make test` work for you? It does depend on LCMS being enabled.
I've seen that error before. I think it's fixed in the latest version.
BTW, running pngquant twice makes image only worse. Bad idea in all cases.
Does it happen with some specific image?
I'm taking a break from coding. If you submit it as a pull request, I'll merge it.
The problem is that pngquant is supposed to generate a new file. If it sometimes didn't generate a new file, it'd be super weird. People would complain to me that...