9852 enable ld(1) guidance and deflib assertions for the illumos build

@@ -34,10 +34,11 @@
 INCDIRS = $(SRC)/uts/common
 CFLAGS += -I$(INCDIRS)
 LINTFLAGS += -I$(INCDIRS)
 
 LDFLAGS += -L$(ROOT)/usr/lib/fm -R/usr/lib/fm
+ADJUNCT_LIBS = libxml2.so
 LDLIBS += -luutil -lxml2 -L$(ROOTLIB)/fm -ltopo
 
 CERRWARN += -_gcc=-Wno-parentheses
 CERRWARN += -_gcc=-Wno-switch
 CERRWARN += -_gcc=-Wno-uninitialized