Found by pure coincidence, that gnuchessx builds the book even with
input from /dev/null. (This broke the port in dpb)
Tested on amd64 by building with make < /dev/null and with dpb
games/gnuchess.
Index: Makefile
===================================================================
RCS file: /cvs/ports/games/gnuchess/Makefile,v
diff -u -p -r1.56 Makefile
--- Makefile 8 Sep 2025 10:35:20 -0000 1.56
+++ Makefile 12 Mar 2026 13:40:15 -0000
@@ -1,9 +1,7 @@
-BROKEN= post-build fails in dpb (or if stdin is redirected from
/dev/null)
-
COMMENT= chess program
DISTNAME= gnuchess-6.3.0
-REVISION= 0
+REVISION= 1
DISTFILES= ${DISTNAME}.tar.gz book_1.02.pgn.gz
CATEGORIES= games
@@ -27,7 +25,7 @@ CONFIGURE_STYLE= gnu
post-build:
cd ${WRKSRC}/src && ln -sf ../../book_1.02.pgn
- cd ${WRKSRC}/src && ./gnuchess --addbook book_1.02.pgn
+ cd ${WRKSRC}/src && ./gnuchessx --addbook book_1.02.pgn
post-install:
${INSTALL_DATA_DIR} \
