Created attachment 209319 [details] patch Explicitly set signed char for variables that are negative to prevent signed/unsigned issue on arm and powerpc.
This change cannot be wrong, and I think it should be contributed to the scid project as well.
A commit references this bug: Author: pkubaj Date: Fri Dec 6 12:55:23 UTC 2019 New revision: 519137 URL: https://svnweb.freebsd.org/changeset/ports/519137 Log: games/scid: fix build on arm and powerpc Explicitly set signed char for variables that are negative to prevent signed/unsigned issue on arm and powerpc. PR: 242141 Approved by: bsd@volki.at (maintainer), linimon (mentor) Differential Revision: https://reviews.freebsd.org/D22581 Changes: head/games/scid/files/patch-src_fastgame.h