root/tags/lgt290/configs/NOTES

=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.9.0

Copyright (c) 1998-2001 Paulo Moura.  All Rights Reserved.
=================================================================

>>>> CONFIG FILE CONTENTS DIFFERENT FROM PREVIOUS RELEASES.
>>>> SEE FILE template.config FOR DETAILS.

This file contains some notes about the config files provided. If you
improve or correct some of these files, or write new ones for other
Prolog compilers, please send me a copy. It is impossible for me to 
individually test Logtalk under each Prolog listed here (or, for that mater, 
to own a copy of each one of these compilers). For some of these Prologs I 
only have the (on-line available) manuals.

As a general rule, always try to use the most recent version of your
Prolog compiler of choice. Most Prolog compilers are moving towards
better ISO Standard compatibility and, as a consequence, improved
Logtalk compatibility.

>>>> CHECK THE CONFIGURATION FILE THAT YOU INTEND TO USE CAREFULLY
>>>> BEFORE TRYING TO RUN LOGTALK



template config file

    template.config

    If a config file for your favorite Prolog is not available, use this 
    file to write one. For each predicate in the file, see if it is builtin 
    in your Prolog, available in a library, or if you can write a better 
    definition.


ALS Prolog 3.1

    als.config

    Only a few tests have been done with this compiler. One known problem: an
    ALS bug in operator handling that make calls like "\+ ::Pred" be 
    interpreted like "::(\+ Pred)" instead of "\+ (::Pred)". A workaround is 
    to replace all occurences of "\+ ::Pred" by "\+ (::Pred)" and all 
    occurences of "\+ Obj::Pred" by "\+ (Obj::Pred)". Please report any other 
    problems that you might find. Don't forget to use the cd/1 predicate to 
    set the working directory before loading an example.


Amzi! Prolog 4.103, 5.0, 6.1.21

    amzi.config

    For Amzi! Prolog 4.103 and 5.0. The compiler definition of the compare/3 
    built-in predicate returns the atom == instead of = for identical terms 
    (contrary to every other Prolog compiler!). You need to search the library
    files for all calls of the compare/3 predicate and make the necessary 
    changes.

    Older versions of the Amzi! compiler contain a bug in the implementation 
    of the if-then-else control structure that affects Logtalk behaviour (and
    any other program using it!). Don't forget to use the chdir/1 predicate 
    to set the working directory before loading an example.

    amzi6.config

    For Amzi! Prolog 6.1.21 beta release. The compiler definition of the 
    compare/3 built-in predicate returns the atom == instead of = for 
    identical terms (contrary to every other Prolog compiler!). You need to 
    search the library files for all calls of the compare/3 predicate and 
    make the necessary changes. Don't forget to use the chdir/1 predicate 
    to set the working directory before loading an example.


Aquarius Prolog 1.0
    
    aquarius.config

    THIS CONFIG FILE IS INCOMPLETE. Any help in finishing it will be 
    appreciated. Don't forget to use the unix(cd(+Directory)) predicate to 
    set the working directory before loading an example.


Arity/Prolog32 V 1.1

    arity.config

    THIS CONFIG FILE IS INCOMPLETE. Any help in finishing it will be 
    appreciated. Don't forget to use the chdir/1 predicate to set the 
    working directory before loading an example.


B-Prolog 4.0~5.0, 6.0

    b5.config

    For B-Prolog 4.0 or 5.0.
    The (Logtalk) predicates lgt_current_date/3 and lgt_current_time/3 
    have dummy definitions. Don't forget to use the chdir/1 predicate to 
    set the working directory before loading an example.

    b6.config

    For B-Prolog 6.0.
    Don't forget to use the chdir/1 predicate to set the working 
    directory before loading an example.

Bin-Prolog 8.x

    bin.config

    Start BinProlog using "bp -l4". You will need to create project files to 
    workaround the restriction of only one top-level file per interactive 
    session. For instance, the project file for the metapredicates example
    will look like (in the Unix version):
    
        :- ['configs/bin.config'].
        :- ['compiler/logtalk.pl'].
        
        :- ['examples/metapredicates/meta.pl'].
        :- ['examples/metapredicates/sort1.pl'].
        ...
    
    You will probably want to have a project file including only the config
    and the pre-processor/runtime files (logtalk.pl) in order to compile the
    examples using logtalk_compile/1 (do NOT use logtalk_load/1 or the 
    provided loader files). Don't forget to call the cd/1 predicate to set 
    the working directory before compiling an example.

    Updated and tested with help of Arun Majumdar.


CIAO Prolog 1.6p1, 1.7p115

    ciao16.config
    ciao_aux16.config

    ciao17.config
    ciao_aux17.config

    The ciao1x.config is just a loader file with two include/1 directives 
    that load the ciao_aux1x.config and the Logtalk compiler/runtime. You 
    must edit the contents of the file ciao.config to match your operating 
    system (the include directives arguments are file paths that differ 
    between operating systems). The definition of the 
    lgt_predicate_property/2 in file ciao_aux.config is a bit of a hack, 
    but should enable you to run the Logtalk companion examples and to try 
    out your own Logtalk programs. Don't forget to call the cd/1 predicate 
    to set the working directory before compiling an example (you will need 
    first to load the library system that exports the cd/1 predicate by 
    calling the goal use_module(library(system))).


Eclipse 4.2.2, 5.x

    eclipse.config
    eclipseiso.config

    There are two configs files for this compiler. The first one, named 
    "eclispe.config", should be used when, for some reason, we don't want 
    to load the "iso" library. The second file, "eclispeiso.config" contains
    a call to load the "iso" library.

    Adopted from a config file written and tested with help of Taner Bilgic 
    for Logtalk 1.x. Don't forget to use the cd/1 predicate to set the working 
    directory before loading an example.


GNU Prolog 1.1.2

    gnu.config

    GNU Prolog supports the ISO Prolog standard. No problems expected. You 
    can generate a new Prolog top level that includes the Logtalk config file
    and pre-processor plus the runtime by doing something like:

    % cd lgt285
    % cp configs/gnu.config configs/gnu.pl
    % gplc -o logtalk configs/gnu.pl compiler/logtalk.pl
    % mv logtalk /usr/local/bin/

    This way, every time you want to work with Logtalk you will just need to
    type:

    % logtalk

    Don't forget to use the change_directory/1 predicate to set the working 
    directory before loading an example.


IC Prolog II 0.96

    ic.config

    THIS CONFIG FILE IS INCOMPLETE. Any help in finishing it will be 
    appreciated (how do we define ISO compliant catch/3 and throw/1 
    predicates ?). Don't forget to use the cd/1 predicate to set the 
    working directory before loading an example.


IF/Prolog 5.1

    if.config

    IF/Prolog 5.1 supports the ISO Prolog standard. No problems expected.
    Don't forget to use the cd/1 predicate to set the working directory 
    before loading an example.


K-Prolog 4.5, 5.01 Linux/Solaris, 5.02 Windows

    k45.config

    For Logtalk to run with K-Prolog 4.5 you need to apply the following patch
    to the Logtalk pre-processor: find and replace every instance of "throw(" 
    with "iso_throw(". This config file have been written with the help of 
    Nobukuni Kino. Don't forget to use the cd/1 predicate to set the working 
    directory before loading an example.

    k50.config

    Config file for the Linux/Solaris 5.01 version or Windows 5.0.2 version
    (if you are still running version 5.00 please upgrade before using Logtalk). 
    K-Prolog 5.01 supports the ISO Prolog standard. No problems expected. 
    This config file have been written with the help of Nobukuni Kino. Don't 
    forget to use the cd/1 predicate to set the working directory before 
    loading an example.


LPA MacProlog32 1.25

    lpamac.config

    This is my old Prolog development environment. Two known problems: (1) an
    LPA bug in operator handling that make calls like "\+ ::Pred" be 
    interpreted like "::(\+ Pred)" instead of "\+ (::Pred)". A workaround is 
    to replace all occurences of "\+ ::Pred" by "\+ (::Pred)"; (2) If you call 
    the \+ operator in your code the writeq/1 built-in don't always output a 
    space after the operator resulting in calls like "\+(...)". Because \+ is 
    not defined as a predicate this will fail. Don't forget to use the dvol/1 
    predicate to set the working directory before loading an example.
    Due to the size of the Logtalk pre-processor file, you must load it by 
    using the consult/1 predicate instead of using the File:Open menu option.
    Be aware that this configuration file redefines some built-ins that
    you may use in your own programs. You must be careful to not consult the 
    config file twice.


LPA WinProlog32 3.61 & 4.00

    lpawin36.config
    lpawin40.config

    Written with the help of the LPA support team. Of course, 
    if you find any bug please direct your flames to me ;-).
    Be aware that this configuration file redefines some built-ins that
    you may use in your programs. Don't forget to use the chdir/1 
    predicate to set the working directory before loading an example. Be 
    careful to not consult the config file twice.


MasterProlog 4.1

    master.config

    Written with the help of the MasterProlog support team (but if you find 
    any Logtalk problem please report it to me). 
    If in the MasterProlog version that you are using the implementation of 
    the close/1 predicate does not follow the ISO standard, you will have to 
    apply the following patch to the Logtalk pre-processor: replace every 
    call of close(...) with fclose(...).


Open Prolog 1.1b4

    open.config

    Limited test done. Please report any problems that you may find.
    Don't forget to use the set_folder/1 predicate to set the working 
    directory before loading an example.


PrologII+ 4.5

    prologII.config

    Written and tested with the help of Claude Lai from PrologIA. You need
    to apply the following patches to the Logtalk pre-processor/runtime:
    Search and replace every instance of "quoted(true)" with "quoted(:true)";
    "open(File, write, Stream)" with "open(File, :write, Stream)",
    "catch(close(Stream), _, true)" with "catch(close(Stream), _, :true)",
    "open(File, read, Stream)" with "open(File, :read, Stream, [eof_action(eof_code)])".
    Remember that you need to use the set_import_dir/1 built-in predicate to
    set the working directory before loading an example.


QU-Prolog 4.3

    qu.config

    Not tested but no problems are expected.
    The predicates lgt_current_date/3 and lgt_current_time/3 have dummy 
    definitions. For most users, this will be no problem (some examples may 
    use lgt_current_date/3 only to put a time stamp in new objects).


Quintus Prolog 3.3

    quintus.config

    Written and tested with help of a friend of mine, Paulo Urbano, for a 
    previous version. Adopted (but not tested) for the current release by
    using information available on-line in the internet. Don't forget to use 
    the unix(cd(Dir)) predicate to set the working directory before loading 
    an example.


SICStus Prolog 3.5~3.8.x

    sicstus35.config
    
    For versions 3.5, 3.6, and 3.7.
    The initialization/1 directive does not follow the ISO standard. In order
    to run the examples you have to edit the loader files and remove the
    call to the directive, leaving of course the logtalk_load/1 call. Also, 
    some library objects (like difflist) use the unify_with_occurs_check/2 ISO 
    predicate that the 3.5 version does not define. Don't forget to use 
    the working_directory/2 predicate to set the working directory before 
    loading an example.

    sicstus38.config
    
    For version 3.8.x. The config file sets the flag language to iso, but that
    is only recomended and should not be needed to run Logtalk.
    No problems expected although not fully tested. Don't forget to use the 
    working_directory/2 predicate to set the working directory before loading 
    an example.


SWI Prolog 3.2.9 & 3.3.x/3.4.x/4.x.x

    swi329.config

    For version 3.2.9 (or older versions).

    swi330.config

    For all versions 3.3.x/3.4.x/4.x.x.

    No problems expected. Please report any other problem found (with a 
    solution if possible). Don't forget to use the cd/1 predicate to set 
    the working directory before loading an example.


Trinc-Prolog R3

    trinc.config

    There is a conflict between Logtalk and Trinc-Prolog operators that 
    prevents the Logtalk pre-processor/runtime to compile without errors.
    Also, the definition of lgt_predicate_property/2 is fragile. Better
    support is needed from TP regarding predicate properties.


XSB Prolog 2.3

    xsb.config

    You need to rename both the config file and the Logtalk pre-processor to 
    end with a '.P' extension otherwise the (re)consult built-in predicate 
    will not find them!

    You also need to apply the following patchs to the Logtalk pre-processor/
    runtime: (1) open the file compiler/logtalk.pl, go to the line 1670 and 
    replace the clause "lgt_current_object_(user, user0_)." by the query
    ":- assertz(lgt_current_object_(user, user0_))."; (2) you may get
    syntax errors while compiling the Logtalk pre-processor or some of the 
    examples due to a know bug in the XSB parsing of infix operators: just 
    add a space after the infix operator.

    The write() and writeq() predicates output code that in some instances 
    can not be readed back with read(). If you receive a syntax error while 
    loading a Logtalk compiled file we will have to fix the problem by 
    editing the file (the Prolog output, not the Logtalk source). Don't 
    forget to use the cd/1 predicate to set the working directory before 
    loading an example.


YAP 4.2.0 & 4.3.x

    yap420.config
    
    For version 4.2.0 (or older versions).

    yap430.config

    For all 4.3.x versions.

    The predicates lgt_current_date/3 and lgt_current_time/3 have dummy 
    definitions. For most users, this will be no problem (some examples may 
    use lgt_current_date/3 only to put a time stamp in new objects). Don't 
    forget to use the cd/1 predicate to set the working directory before 
    loading an example.