Log message:
Update to Yap 6.0.6

Highlights:

- configure system rewritten and simplified
- better emulation of SWI, especially of C-interface, allows:
  o port of SWI  packages: sgml and plunit work better, clib, RDF,
    zlib and http seem to be working well, semweb compiles
  o better integration with C: it is now possible to call YAP from JPL
    reliably (all tests in the demos/java directory succeed in Linux)
  o it is now possible to create a stream with SWI routines and use
    YAP IO (parser, writer) on it
  o pyswip: YAP now includes a version of the pyswip package for
    experimentation: all the demos seem to be work (YAP must be compiled
    as a dynamic library)
- compilation in Sun and NetBSD
- YAP can now handle very, very large terms in compiled clauses.
- several new builtins
- improve thread implementation, especially locking in IO routines and indexing
    o fix C thread interface
- fix odbc support in MYDDAS
- fix overflow in ==
- fix bad call to subsumes/2
- new version of trie library, developed by Theo and Ricardo

Log message:
Update to YAP-6.0.5

Changes in Yap-6.0.5:

- Very large programs: indexing very large DBs requires very large
  intermediate data-structures. malloc is changed to avoid
  memory fragmentation.

- Heap data-structures: there was some confusion about what should be
  going through save/restore and atom-gc, and what is local to a
  run. Fixed that by two files describing the two types: global
  variables and code-space data structures.

- SWI emulation cleanup: some builti-ins (like predsort/3, plus/3) are
  now in YAP proper, the file was cleaned up and made to rely more on

Changes in Yap-6.0.4:

Overhaul/cleanup of the attributed variable and coroutining code:
- attributed variables now don't have a separate stack; instead,
  they are allocated as global variables.
- Prolog code for attributed variables cleaned up: layers now
  are engine, hprolog/SWI attvars, freeze and SICStus emulation
  libraries

Changes in Yap-6.0.3:

6.0.3 is another bug fix release:
- a bug in indexing large integers
- a choice-point left over in consulting
- fix error handling in comparisons
- garbage collection of functor/3 could sometimes break
- fixes to chr port
- exec_prefix
- bad error reporting in some arithmetic conditions
- erf function
- win32 install fixes
- operators need to be exported in module list, some weren't.
- tabling stuff

Changes in Yap-6.0.2:

This is a bug fix release:
- fix current_op/3 in WIN32 (P Moura)
- fix nb_current/2 (J Santos) and add SWI user:exception/3
  (Bernd and Jose), add fix to nb_ in distributed ProbLog.
- fix goal_expansion
- fix clp(fd) all_distinct/1 and circuit/1 (M Triska)
- fix seekable file detection in WIN32
- add yap.pdf and yap.html to win32 bundle (M Ferreira).
- check for badly typed calls to load_files and friends.
- threads: fix bad locking while spying (P Moura).

Changes in Yap-6.0.1:

- engine improvements;
- many bug fixes;
- new implementation of arithmetic;
- better ISO compatibility;
- improvements in tabling;
- SWI-compatibility, YAP now includes support for most of the
  SWI foreign interface, and many built-ins, ports of SWI
  packages include jpl, chr, clpfd, clpr, sgml, prolog_xref,
  swi-minisat interface, and plunit;
- yap-6 also includes a really cool new language called ProbLog.

Changes in Yap-5.1.4:

  - FIXED: bad locking in p_signal (obs from Paulo Moura).
  - FIXED: DESTDIR and chr.
  - FIXED: make term_variables a builtin. (SWI compatibility).
  - NEW: X is random(Int) (SWI compatibility).
  - NEW: seletchk/3.
  - FIXED: do meta-expansion from undefp.
  - FIXED: handle correctly flatten([_,[_]],L).
  - FIXED: bad syntax in config.h (patch from Keri Harris).
  - NEW: format over atom/1.
  - FIXED: clean up apply_macros in swi mode.
  - FIXED: clean up meta-expansion.
  - FIXED: do meta-expansion from undefined call.
  - NEW: selectchk/3, nth1/3 and nth1/4.
  - FIXED: YapOpcodes has wrong formats (obs from Bart Demoen).
  - FIXED: improve format message (obs from Bart Demoen).
  - NEW: more versions of maplist (obs from Bart Demoen).
  - FIXED: use import mechanism for SWI's flatten/2 (obs from Bart Demoen).
  - FIXED: steps towards typed rbtrees plus some cases where one should not copy \ 
the null node (Tom Schrijvers and Bart
    Demoen).
  - FIXED: map_tree in trees library (Bart Demoen).
  - FIXED: bad call to splay_tree (Bart Demoen).
  - FIXED: bad type for write_x_var in add_info (Bart Demoen).
  - FIXED: exec/3 should flush streams.
  - FIXED: load_files/2 compilation_mode to allow :- source and replace compile \ 
by compact.
  - FIXED: list_concat/2 (fix from Bart Demoen).
  - NEW: dgraph_reachable/3 and friends.

Log message:
Recursive revision bump for GMP update.

Log message:
Update to Yap 5.1.3.
Many improvements, bug and compatibility fixes since previous 5.0.0 package.

Log message:
Remove @dirrm entries from PLISTs

Log message:
Add DESTDIR support.

Log message:
Resign from maintaining a lot of packages, so everyone is free to update
them at will.

Log message:
Add DragonFly support.

Log message:
Of course the distinfo must be updated after changing the DIST_SUBDIR.

Log message:
Take a new DIST_SUBDIR for the changed distfile.