8411 Build should warn when linking against libraries outside proto area

@@ -20,10 +20,12 @@
 #
 #
 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
+# Copyright 2017 RackTop Systems.
+#
 
 PROG= fiocompress
 
 SBINLINKS= $(PROG)
 

@@ -34,10 +36,13 @@
 
 .KEEP_STATE:
 
 LDLIBS +=       -lz
 
+# Allow zlib to be taken from outside the proto area.
+$(ADJUNCT_PROTO_NOT_SET)LDFLAGS += $(ZASSERTDEFLIB)=libz.so
+
 CFLAGS +=       -I../../../uts/common
 LINTFLAGS +=    -I../../../uts/common
 
 all: $(PROG)