diff -ruNb zlib-1.2.11.orig/Makefile.in zlib-1.2.11/Makefile.in
--- zlib-1.2.11.orig/Makefile.in	2017-01-15 18:29:40.000000000 +0100
+++ zlib-1.2.11/Makefile.in	2017-05-30 14:41:17.075800210 +0200
@@ -128,8 +128,8 @@
 	gcov inf*.c
 
 libz.a: $(OBJS)
 	$(AR) $(ARFLAGS) $@ $(OBJS)
-	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+	-$(RANLIB) $@ 
 
 match.o: match.S
 	$(CPP) match.S > _match.s