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

*** 34,43 ****
--- 34,44 ----
  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