8411 Build should warn when linking against libraries outside proto area

*** 7,17 ****
  
  PR_MDUSOBJS = os_SunOS.o
  
  include ../Makefile.com
  
- LDLIBS +=       -L$(ADJUNCT_PROTO)$(NSS_LDPATH) $(NSS_LIBS)
  DYNFLAGS +=     -R$(NSS_LDPATH)
  
  
  all: $(LIBS)
  
--- 7,16 ----