$NetBSD$

--- include/zlib/makefile.orig	2011-02-11 11:10:06.000000000 +0000
+++ include/zlib/makefile
@@ -35,8 +35,8 @@ LIBZ_shared = $(LDIR_R)/libz$(SOEXT)
 
 install:
 ifeq ($(ZLIB), false)
-	$(CP) $(LIBZ_static) $(I_LIB)/static
+	$(CP) $(LIBZ_static) $(DESTDIR)$(I_LIB)/static
 ifeq (${ENABLE_SHARED}, true)
-	$(CP) $(LIBZ_shared) $(I_LIB)/relocatable
+	$(CP) $(LIBZ_shared) $(DESTDIR)$(I_LIB)/relocatable
 endif
 endif
