make distcheck complained about this
$(ZPY)
SUBDIRS = po
xboard_LDADD = -lm @XAW_LIBS@ @X_LIBS@ @LIBINTL@ @CAIRO_LIBS@
-EXTRA_DIST = pixmaps shogi sounds winboard \
+EXTRA_DIST = pixmaps shogi sounds winboard bitmaps\
xboard.texi gpl.texinfo texi2man texinfo.tex xboard.man xboard.desktop \
xboard-fen-viewer.desktop xboard-pgn-viewer.desktop xboard-tourney.desktop xboard.xml \
COPYRIGHT FAQ.html engine-intf.html ics-parsing.txt readme.htm zippy.README \