Manual says "diff -uR" but macOS diff doesn't support "-R"

[Gerben Wierda]

Busy adopting nsd (currently no maintainer). I have created a Portfile for the last version and added Startupitem statements. Everything works here.

The manual says:

diff -uR $(port dir $portname) . > change-$portname-maintainer.diff

However, macOS Mojave’s diff doesn’t understand that. -R is an invalid option. I’m not going to guess here, so what is it supposed to be?

Gerben Wierda
Chess and the Art of Enterprise Architecture <http://enterprisechess.com/>
Mastering ArchiMate <http://masteringarchimate.com/>
Architecture for Real Enterprises <https://www.infoworld.com/blog/architecture-for-real-enterprises/> at InfoWorld
On Slippery Ice <https://eapj.org/on-slippery-ice/> at EAPJ

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