[PATCH 2/3] build: add support to build Ruby bindings

[David Bremner]

Felipe Contreras <felipe.contreras at gmail.com> writes:
> +
> +$(dir)/notmuch.so: | $(dir)/Makefile lib/libnotmuch.so
> +	@$(MAKE) -C $(dir) notmuch.so

- since this is the only place (afaik) in the notmuch codebase that
order only prereqs are used, their use probably deserves some comment.

- can you explain why you depend on $(dir)/Makefile here?

d