Build dependency on cctools?

[Lawrence Velázquez]

> ar and ranlib and the like are utilities most ports use to compile, and they're expected to be provided by Xcode's command line tools, so we don't declare dependencies on them, just like we don't declare dependencies on gcc, sed, awk, grep, gawk, etc. cctools happens to provide (newer versions of?) the same software, so I'd only declare a dependency on it if the versions Xcode provides are too old.

> That's not necessary unless you absolutely need *our* version of cctools.

That makes sense; thanks.

vq