$NetBSD: patch-library_Makefile,v 1.2 2016/09/15 10:48:01 fhajny Exp $

Call ranlib instead of non-portable 'ar s'.

--- library/Makefile.orig	2016-06-27 19:00:26.000000000 +0000
+++ library/Makefile
@@ -95,7 +95,7 @@ libmbedtls.a: $(OBJS)
 	echo "  AR    $@"
 	$(AR) -rc $@ $(OBJS)
 	echo "  RL    $@"
-	$(AR) -s $@
+	$(RANLIB) $@
 
 libpolarssl.$(DLEXT): libmbedtls.$(DLEXT)
 	echo "  LN    $@ -> $?"