Abacus quick install info:

1. Check what Tcl version you have. If you are running 8.0.3, you don't have
   to do nothing, but if you are running 8.0.0 -> 8.0.2 remove the simbolic 
   link 'canvas' and make a new one pointing to the canvas-tcl8.0.0 directory
   with the following commands:

	'rm canvas'
	'ln -s canvas-tcl8.0.0 canvas'

2. Edit Makefile.otions for any platform-specific settings. If you are using
   gcc and have bison and flex properly installed on your system you shouldn't
   need to do this.

3. 'make dep'

4. 'make'

5. Define the following environment variables

	ABACUS_HOME - directory where you built the Abacus.
	ABACUS_EDITOR - external editor to use when editing macros.
	ABACUS_BROWSER - web browser to view WWW pages and info.

   Under bash you should do:

	export ABACUS_HOME=/directory/where/i/did/make
	export ABACUS_BROWSER=netscape
	export ABACUS_EDITOR=emacs

   If you are using csh use instead:

	setenv ABACUS_HOME /directory/where/i/did/make
	setenv ABACUS_BROWSER netscape
	setenv ABACUS_EDITOR emacs

  It's probably also a good idea to put these lines in your login script.

6. Type 'abacus' and have fun! :)