with-readline 0.1.1 (new formula)

Adds a formula for with-readline which adds readline support to tools
that don't have readline support like the OSX native sftp.

This depends on readline and fooling about with {C,LD}FLAGS was the
way I figured out to make this build. Criticism appreciated.
I can't reproduce that - it installs for me without these lines. I'd need to see your logs to interpret!

In the default build environment, the compiler is wrapped by a shim script that controls the flags; they're not passed explicitly as CFLAGS or LDFLAGS.