8411 Build should warn when linking against libraries outside proto area

*** 22,31 ****
--- 22,32 ----
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  # Copyright 2016 Toomas Soome <tsoome@me.com>
  # Copyright 2016 Nexenta Systems, Inc.
+ # Copyright 2017 RackTop Systems.
  #
  
  PROG= bootadm
  
  SBINLINKS= $(PROG)
*** 43,52 ****
--- 44,56 ----
  
  LDLIBS_i386= -lfdisk
  LDLIBS += -lficl-sys -lmd -lcryptoutil -lnvpair -lgen -ladm -lefi
  LDLIBS += -lz -lbe -lzfs -lofmt $(LDLIBS_$(MACH))
  
+ # Allow zlib to be taken from outside the proto area.
+ $(ADJUNCT_PROTO_NOT_SET)LDFLAGS += $(ZASSERTDEFLIB)=libz.so
+ 
  # Writing into string literals is incorrect.  We need to match gcc's
  # behavior, which causes us to take SIGSEGV on such a write.
  CFLAGS +=       $(XSTRCONST)
  CPPFLAGS +=     -D_FILE_OFFSET_BITS=64
  CPPFLAGS +=     -I$(SRC)/uts/common -I$(SRC)/common -I$(SRC)/common/ficl