PAKCS: The Portland Aachen Kiel Curry System

Installation Instructions

• SICStus-Prolog (Version 3 #5 or higher) (recommended)
• SWI-Prolog (if you do not have SICStus-Prolog, but then the execution is less efficient and some functionality (e.g., constraint solvers) is not available)

How to generate and install the PAKCS kernel:

1. Go into the main directory of PAKCS (which contains this file). In the following, we assume that pakcshome is the name of this directory.
2. If you have the executables sicstus (for SICStus-Prolog) or pl (for SWI-Prolog) in your path, execute "make" which installs PAKCS (after asking you to confirm the values for java and sicstus). The values for sicstus or pl are stored in the home directory in file .pakcsinitrc so that they are available for future installations of new versions of PAKCS.
3. Otherwise, modify in the shell script "pakcshome/bin/.pakcs_variables" the definition of the variables SICSTUS or SWI according to your local installation. If both variables are undefined, the Curry2Prolog compiler system is not installed (i.e., only the front-end is installed).
4. If you install PAKCS from the source code distribution, you need also the Glasgow Haskell Compiler (executable ghc) to compile the front end of PAKCS. The make script will ask you for it.
5. Now, install PAKCS by "make" (if you have already an older installation of PAKCS, do "make clean" before).
6. Add the directory "pakcshome/bin" to your path, e.g., by the command export PATH=$PATH:pakcshome/bin in the bash.
7. Now you can start the PAKCS/Curry2Prolog compiler system via the commands "pakcs" or "curry2prolog".
8. If you want, you can also execute "make libdoc" to generate a local version of the documentation of all system libraries by the CurryDoc tool into the directory "pakcshome/lib/CDOC". However, this is only necessary if you want to work offline since you can also access the documentation online at http://www.informatik.uni-kiel.de/~pakcs/lib/.
9. You can configure the behavior of PAKCS by various setting in a "pakcsrc" file. For doing so, copy the file pakcshome/pakcsrc as ".pakcsrc" into you home directory and modify the settings.

How to install additional packages:

1. If you want to use the library for GUI programming in Curry (pakcshome/lib/GUI.curry), you need also a Tcl/Tk implementation (including the windowing shell wish) which can be downloaded here. In this case, the windowing shell wish must be in your path (or you can also modify the definition of the function openWish in the library GUI.curry).
2. If you want to use the DaVinci library for the visualization of graphs (pakcshome/lib/DaVinci.curry), you need also an installed daVinci system which can be downloaded here. In this case, you have to modify the definition of the constant dvHome in the library pakcshome/lib/DaVinci.curry according to the installation path of daVinci.