Before you build the CAT software

The cat package depends on the following packages being already installed. These are available from f ftp://ftp.eso.org/pub/archive/skycat :

tclutil - Tcl and C++ Utilities Package
astrotcl - Astronomical Tcl and C++ Utilities Package

Note: The dependeny on these two packages is hidden from applications that use the cat library. In the installation, the cat library contains all of the tclutil and astrotcl object files and the cat include directory contains all of the necessary include files (for backward compatibility). The global auto_path Tcl variable is also updated automatically to include the necessary Tcl source directories.

The above packages also assume the following standard Tcl packages are installed:

For Tcl7.6:

itcl2.2 - [Incr Tcl], includes tcl7.6, tk4.2
BLT2.1 - BLT toolkit, graphs and other widgets
tclX7.6.0 - Extended Tcl

Or for Tcl8.0 :

Tcl8.0.3 - Tcl Shell
Tk8.0.3 - Tk X Toolkit
itcl3.0.1 - [Incr Tcl]
BLT2.4f - BLT toolkit, graphs and other widgets
tclX8.0.3 - Extended Tcl

These packages are available from the TCL archives.

http://www.tcltk.com/ for Itcl.
http://www.NeoSoft.com/tcl/ for TclX and other contributed Tcl software
http://www.scriptics.com/tclpro/ for Tcl8.x, TclPro and the latest releases.

You can also find a tar file on ftp://ftp.eso.org/pub/archive/skycat that contains all of the Tcl packages used, with any required patches installed.

You can install the standard Tcl/Tk packages anywhere, however it is easiest to install them all in the same directory (using the same -prefix argument to configure) and define the TCLTK_ROOT environment variable to point to the top level install directory. This variable is used, if defined, by the tclutil , astrotcl and cat package configure scripts, to locate the Tcl installation.

If you are building the tclutil , astrotcl or other related packages also, it is best to place these packages under the same parent directory, so that you have $dir/tclutil, $dir/astrotcl, and $dir/cat (so there is no problem finding the local include files and libraries).