Compiling ZvT widget

[Marco Quezada <mquezada nlxcorp com>]

I'm having trouble linking my object files together and I receive the 
following error from the compiler:

/usr/lib/libzvt.so: undefined reference to `login_tty'

my makefile looks something like this:

#------------------------------------------------------------------------------------------
include ../../jstars/libsim_defs

GTK_FLAGS  = `gtk-config --cflags --libs gthread` -lzvt -lgdk_imlib
CC_OBJS    = ccenter.o callbacks.o interface.o support.o treeparser.o 
create_alpha_menu.o

ccenter : $(CC_OBJS)
   $(CC) $(CFLAGS) -o ccenter $(CC_OBJS) $(LIBS) $(GTK_FLAGS)
#------------------------------------------------------------------------------------------

I'm guessing that I'm missing a link to a library, but I'm not sure what 
library will have the login_tty in it. Anyone have an idea?
thanks.


--
Marco Quezada
Aerospaceo Engineero
NLX Corporation
22626 Sally Ride Dr.
Sterling, VA, 20164
mquezada nlxcorp com
703-234-2100 x1028
http://www.nlxcorp.com