Oh, didn't know mac ports were still being updated!
I use Homebrew(
https://brew.sh) and having a look at the Crystal package, it seems to depend on libyaml 0.1.7 too, but maybe at a different location :|
The package is here:
http://braumeister.org/formula/crystal-lang
I'll check if I can fix this, but Crystal being still in alpha will probably not help :( Kind of a shame, I would assume the binaries would stand on their own anywhere...
Thanks for testing!
--
"I must not fear. Fear is the mind-killer."
--- Mystic BBS v1.12 A31 (Raspberry Pi)
* Origin: Scifi Hangout (21:2/114)