$NetBSD: patch-au,v 1.1.1.1 2011/02/22 08:52:01 obache Exp $

--- Makefile.pre.in.orig	2010-04-12 00:10:46.000000000 +0000
+++ Makefile.pre.in
@@ -815,7 +815,8 @@ altbininstall:	$(BUILDPYTHON)
 				(cd $(DESTDIR)$(LIBDIR); $(LN) -sf $(INSTSONAME) $(LDLIBRARY)) \
 			fi \
 		fi; \
-	else	true; \
+	elif test -f $(INSTSONAME); then \
+		$(INSTALL_SHARED) $(INSTSONAME) $(DESTDIR)$(LIBDIR); \
 	fi
 
 # Install the manual page