Christopher Lemmer Webber <cwebber@dustycloud.org> writes:

> From e5244b9b0cabf9a4e30c3fb5bc144dbea10adc62 Mon Sep 17 00:00:00 2001
> From: Christopher Lemmer Webber <cwebber@dustycloud.org>
> Date: Sat, 24 Feb 2018 18:36:13 -0600
> Subject: [PATCH] gnu: racket: Update to 6.12.
>
> * gnu/packages/patches/racket-minus_zero_p-disable-xform.patch: New file.
> * gnu/packages/scheme.scm (racket): Update version and patch.

LGTM, thanks!