Created attachment 203987 [details] Upgrade to 2.1.2 The current port is not prefix-safe, which made me check for a newer version. Indeed, both 2.0.10 and 2.1.0 were released four years ago in 2015. 2.1.2 is currently the latest version, released last December.
A commit references this bug: Author: danilo Date: Mon Jun 1 16:33:37 UTC 2020 New revision: 537491 URL: https://svnweb.freebsd.org/changeset/ports/537491 Log: - Update to 2.1.2 PR: 237540 Submitted by: mi Changes: head/textproc/dwdiff/Makefile head/textproc/dwdiff/distinfo head/textproc/dwdiff/files/ head/textproc/dwdiff/files/patch-src_option.c
Committed. Thanks and sorry for the long delay (not sure why I didn't work on this PR before...).