8411 Build should warn when linking against libraries outside proto area

*** 20,29 ****
--- 20,31 ----
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright 2017 RackTop Systems.
+ #
  
  LIBRARY=        libbrand.a
  VERS=           .1
  
  OBJECTS=        libbrand.o
*** 34,43 ****
--- 36,48 ----
  LDLIBS +=       -lc
  $(LINTLIB) := SRCS=     $(SRCDIR)/$(LINTSRC)
  CPPFLAGS +=     -I$(ADJUNCT_PROTO)/usr/include/libxml2 -I$(SRCDIR) -D_REENTRANT
  $(DYNLIB) :=    LDLIBS += -lxml2
  
+ # Allow libxml2 to be taken from outside the proto area.
+ $(ADJUNCT_PROTO_NOT_SET)DYNFLAGS += $(ZASSERTDEFLIB)=libxml2.so
+ 
  SRCDIR=         ../common
  
  .KEEP_STATE:
  
  all:    $(LIBS)