8411 Build should warn when linking against libraries outside proto area

@@ -21,10 +21,12 @@
 #
 #
 # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
+# Copyright 2017 RackTop Systems.
+#
 
 PROG=           availdevs
 
 include ../Makefile.cmd
 

@@ -38,10 +40,13 @@
 #
 LDLIBS += -lzfs_jni -lnvpair -lzfs
 all install := LDLIBS += -lxml2
 LINTFLAGS += -xerroff=E_NAME_USED_NOT_DEF2
 
+# Allow libxml2 to be taken from outside the proto area.
+$(ADJUNCT_PROTO_NOT_SET)LDFLAGS += $(ZASSERTDEFLIB)=libxml2.so
+
 CPPFLAGS += $(INCS) -D_LARGEFILE64_SOURCE=1 -D_REENTRANT
 $(NOT_RELEASE_BUILD) CPPFLAGS += -DDEBUG
 
 .KEEP_STATE: