Update to 3.1 Changes: https://git.savannah.gnu.org/cgit/bison.git/tree/NEWS
Exp-run looks fine.
A commit references this bug: Author: sunpoet Date: Sun Sep 30 19:40:43 UTC 2018 New revision: 480970 URL: https://svnweb.freebsd.org/changeset/ports/480970 Log: Update to 3.1 Changes: https://git.savannah.gnu.org/cgit/bison.git/tree/NEWS PR: 231626 Exp-run by: antoine Changes: head/devel/bison/Makefile head/devel/bison/distinfo head/devel/bison/pkg-plist
Committed. Thanks!