8411 Build should warn when linking against libraries outside proto area

@@ -20,10 +20,12 @@
 #
 #
 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
+# Copyright 2017 RackTop Systems.
+#
 
 LIBRARY =       libshare_smbfs.a
 VERS =          .1
 
 LIBOBJS =       libshare_smbfs.o

@@ -38,10 +40,13 @@
 LIBSRCS = $(LIBOBJS:%.o=$(SRCDIR)/%.c)
 
 LIBS =          $(DYNLIB)
 LDLIBS +=       -lshare -lscf -lumem -luuid -lc -lxml2 -lsmbfs
 
+# Allow libxml2 to be taken from outside the proto area.
+$(ADJUNCT_PROTO_NOT_SET)DYNFLAGS += $(ZASSERTDEFLIB)=libxml2.so
+
 CFLAGS +=       $(CCVERBOSE)
 CERRWARN +=     -_gcc=-Wno-switch
 CERRWARN +=     -_gcc=-Wno-uninitialized
 CPPFLAGS +=     -D_REENTRANT -I$(ADJUNCT_PROTO)/usr/include/libxml2 \
                 -I$(SRCDIR)/../common -I$(SRC)/lib/libsmbfs -I$(SRC)/uts/common