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

*** 45,55 ****
  # to compile a debug version, do a `make COPTFLAG="-g -XO0"'
  #
  
  CPPFLAGS  += -D_XOPEN_SOURCE=500 -D__EXTENSIONS__
  LDLIBS    += -lxnet -lnvpair -ldhcpagent -ldhcputil -linetutil -ldevinfo \
!         -ldlpi -lresolv -lsocket -lipadm
  
  # Disable warnings that affect all XPG applications.
  LINTFLAGS += -erroff=E_INCONS_ARG_DECL2 -erroff=E_INCONS_VAL_TYPE_DECL2
  
  .KEEP_STATE:
--- 45,55 ----
  # to compile a debug version, do a `make COPTFLAG="-g -XO0"'
  #
  
  CPPFLAGS  += -D_XOPEN_SOURCE=500 -D__EXTENSIONS__
  LDLIBS    += -lxnet -lnvpair -ldhcpagent -ldhcputil -linetutil -ldevinfo \
!         -ldlpi -lresolv -lipadm
  
  # Disable warnings that affect all XPG applications.
  LINTFLAGS += -erroff=E_INCONS_ARG_DECL2 -erroff=E_INCONS_VAL_TYPE_DECL2
  
  .KEEP_STATE: