X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=backend.c;h=38b4e54da2ac879cb8947da1aecbe93c4116f574;hb=9337560fbda4278a04213d85947445218fd01621;hp=6fca83d17779e13a5750601a92f8cbcafb772e16;hpb=86fe887efd197bd7fcaa6796d5b8afcfe08a0379;p=xboard.git

diff --git a/backend.c b/backend.c
index 6fca83d..38b4e54 100644
--- a/backend.c
+++ b/backend.c
@@ -516,7 +516,7 @@ AppData appData;
 Board boards[MAX_MOVES];
 /* [HGM] Following 7 needed for accurate legality tests: */
 signed char  castlingRank[BOARD_FILES]; // and corresponding ranks
-signed char  initialRights[BOARD_FILES];
+unsigned char initialRights[BOARD_FILES];
 int   nrCastlingRights; // For TwoKings, or to implement castling-unknown status
 int   initialRulePlies, FENrulePlies;
 FILE  *serverMoves = NULL; // next two for broadcasting (/serverMoves option)