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

*** 28,37 ****
--- 28,39 ----
  OBJS=           btxld.o elfh.o version.o bblk_einfo.o mboot_extra.o boot_utils.o
  LDLIBS +=       -lmd5
  CSTD=   $(CSTD_GNU99)
  CPPFLAGS +=     -I$(SRC)/uts/common -I$(COMMON_SRC)
  
+ NATIVE_LIBS +=  libmd5.so
+ 
  $(ROOTONBLDMAN1ONBLDFILES)      := FILEMODE=    644
  
  all: $(PROG) $(MAN1ONBLDFILES)
  
  $(PROG): $(OBJS)