8411 Build should warn when linking against libraries outside proto area

*** 20,30 ****
  #
  #
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # ident "%Z%%M% %I%     %E% SMI"
  #
  
  HAL_PROGS =     hal-system-lcd-set-brightness-sunos \
                  hal-system-lcd-get-brightness-sunos
  
--- 20,30 ----
  #
  #
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright 2017 RackTop Systems.
  #
  
  HAL_PROGS =     hal-system-lcd-set-brightness-sunos \
                  hal-system-lcd-get-brightness-sunos
  
*** 38,47 ****
--- 38,50 ----
  include ../../../Makefile.cmd
  include ../../Makefile.hal
  
  $(HAL_PROGS) :=         LDLIBS += -lc $(ZIGNORE) -lglib-2.0
  
+ # Allow libglib to be taken from outside the proto area.
+ $(ADJUNCT_PROTO_NOT_SET)LDFLAGS += $(ZASSERTDEFLIB)=libglib-2.0.so
+ 
  CPPFLAGS += $(HAL_DBUS_CPPFLAGS) $(HAL_GLIB_CPPFLAGS) $(HAL_CONFIG_CPPFLAGS)
  CPPFLAGS += -I$(ROOT)/usr/include/hal
  CPPFLAGS += -I$(ROOT)/usr/include/libpolkit
  C99MODE = $(C99_ENABLE)