Stefan Fiedler:

package/base/readline/readline.conf

@@ -22,5 +22,15 @@
 
 var_remove confopt " " "--disable-shared"
 var_remove confopt " " "--disable-static"
-postmake="cp -rv examples/ $docdir"
 
+hook_add inmake 5 "readline_inmake"
+
+readline_inmake ()
+{
+	# The readline make install would create backups and link to them.
+	rm -vf $root/$libdir/lib{history,readline}.so.$ver{,.old} \
+		$root/$libdir/lib{history,readline}.so.${ver:0:1} \
+		$root/$libdir/lib{history,readline}.a
+
+	cp -rv examples/ $docdir
+}