--- mercury-extras-0.12.2.orig/graphics/mercury_tcltk/Mmakefile	2005-08-15 21:12:13.000000000 +1200
+++ mercury-extras-0.12.2/graphics/mercury_tcltk/Mmakefile	2006-03-26 11:37:21.000000000 +1200
@@ -4,14 +4,13 @@
 # Public License - see the file COPYING.LIB in the Mercury distribution.
 #-----------------------------------------------------------------------------#
 
+INSTALL_PREFIX := $(INSTALL_PREFIX)/extras
+
 include Mercury.options
 
 # You may need to modify the line below
 
-MLLIBS    = -ltk8.4 -ltcl8.4 -L/usr/X11R6/lib -lX11 -lXmu -lXext -lm -ldl \
-   	    -lXt -lICE -lSM
-
-MLFLAGS	  = -R/usr/X11R6/lib
+MLLIBS    = -ltk -ltcl
 
 # On some Linux machines you may need to let mgnuc know where the 
 # tcl/tk header files are.