[Graphics of a GNU head]

The GNU Prolog compiler (gprolog)

GNU Prolog is a free Prolog compiler with constraint solving over finite domains. GNU Prolog accepts a Prolog+constraint program and produces a native binary (like gcc does from a C source). The obtained executable is then stand-alone. The size of this executable can be quite small since GNU Prolog can avoid to link the code of most unused built-in predicates. The performances of GNU Prolog are very encouraging (comparable to commercial systems).

Beside the native-code compilation, GNU Prolog offers a classical interactive interpreter (top-level).

The Prolog part conforms to the ISO standard for Prolog with many extensions very useful in practice (global variables, OS interface, sockets,...).

GNU Prolog also includes an efficient constraint solver over Finite Domains (FD). This opens contraint logic pogramming to the user combining the power of constraint programming to the declarativity of logic programming.

More information about GNU Prolog can be found at the GNU Prolog web site.


GNU Prolog can be get by anonymous ftp from:

Mailing list

To communicate with other GNU Prolog users and/or implementors send a mail to users-prolog@gnu.org. To (un)subscribe to this mailing list send a mail to users-prolog-request@gnu.org with (un)subscribe in the subject line.

Reporting bugs

Please report bugs to bug-prolog@gnu.org. To (un)subscribe to this mailing list send a mail to bug-prolog-request@gnu.org with (un)subscribe in the subject line.

Please send questions and inquiries to gnu@gnu.org.
Please send comments on these web pages to webmasters@www.gnu.org.

Copyright (C) 1999 Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA

Verbatim copying and distribution of this entire article is permitted in any medium, provided this notice is preserved.

Updated: 18 Apr 1999 dd