I was going to suggest this patch, but Chris beat me to it (again).
I can't reproduce the original problem on my machine, though.
--- xabacus-8.0.8.orig/Makefile.in
+++ xabacus-8.0.8/Makefile.in
@@ -192,7 +192,7 @@ install : $(PROG)$(E)
$(srcdir)/mkinstalldirs $(DESTDIR)$(mandir)
$(INSTALL_DATA) $(srcdir)/$(PROG).man
$(DESTDIR)$(mandir)/$(PROG).$(MANNUM)
$(srcdir)/mkinstalldirs $(DESTDIR)$(xapploaddir)
- sed 's;^$(WIDGET)\*\(.*\):
/usr/local/share/games/$(GROUP);$(WIDGET)*\1: $(DESTDIR)$(readdir);g'
$(srcdir)/$(WIDGET).ad > $(WIDGET).ad.tmp
+ sed 's;^$(WIDGET)\*\(.*\):
/usr/local/share/games/$(GROUP);$(WIDGET)*\1: $(readdir);g'
$(srcdir)/$(WIDGET).ad > $(WIDGET).ad.tmp
$(INSTALL_DATA) $(WIDGET).ad.tmp $(DESTDIR)$(xapploaddir)/$(WIDGET)
rm -f $(WIDGET).ad.tmp
$(srcdir)/mkinstalldirs $(DESTDIR)$(readdir)
Cheers,
Daniel