Log message:
Update to GNU Prolog 1.4.4

Changes in GNU Prolog version 1.4.4:

* add Prolog flags c_cc_version_data
* fix a regression bug in linedit
* fix a little bug in the debugger
* add subtract/3 built-in predicate

Changes in GNU Prolog version 1.4.3:

* add new C foreign interface functions converting term to/from C strings
* modify top-level banner to show 32/64 bits, compile date, C compiler name
* modify Linedit: fix Prolog prompt when Linedit is not activated
* modify linedit: accept gui=silent in env var LINEDIT
  (does not warn if the windows gui DLL is not found)
* fixes for Windows 8 (i686 and x86_64) with MSVS 2012, mingw64 gcc > 4.5.3
* add Prolog flags address_bits, compiled_at, c_cc, c_cflags, c_ldflags
* fix a bug in the FD solver (option backtracks in fd_labeling)
* improve the FD solver (better propagation for reified constraints at labeling)
* improve the FD solver (add labeling option: value_method(bisect))
* improve the FD solver (avoid some cases of C stack overflow, improved fd_domain/3)
* fix a bug in the FD solver (regression bug in 1.4.2)
* add PlULong to gprolog.h and PlThrow(ball) to C foreign interface

Log message:
Update to 1.4.2, based on patches by Mayuresh in PR 47325.
Set LICENSE while here.

Change in GNU Prolog version 1.4.2:

* fix a bug in the x86/NetBSD port
* fix a bug in the compiler for byte-code with op/3 directive
* fix a bug in the debugger
* modify decompose_file_name/4 (fix problems under windows)
* add built-in is_absolute_file_name/1 and is_relative_file_name/1
* modify the compiler include/1 directive handling
  (if the file to include is not found, seach in directories of parent includers)
* modify atom table management (its size can be defined via env. var MAX_ATOM)
* fix a bug with soft-call inside a meta-call
* implement term_hash/2 and term_hash/4. Bacward incompatibility:
  new_atom/3 and and atom_hash/2 no longer exists.
* fix some little bugs with 64 bits (e.g. stream id)
* modify the FD solver to handle very long computations
* fix a bug in the compiler (unification with fresh vars in the body)
* fix a bug with *-> containing ! in the test part (! was not local to the test)
* fix a bug to configure with sigaction on old linux kernels
* fix some problems/bugs on 64 bits machine

Change in GNU Prolog version 1.4.1:

* improve signal handling
* add an option --wam-comment to gplc and pl2wam
* fix multifile directive (works now with an empty predicate as required by ISO)
* fix absolute_file_name to expand ~ using HOMEDRIVE and HOMEPATH under windows
  if HOME is not defined
* improve listing/0-1 output
* add soft cut control construct and its associated operator *->
* improve the top-level results in case of cyclic terms
* fix arithmetic evaluable functor ^/2 to work with floats
* increase maximum number of variables in a term
* add write_term option variable_names
* add built-in predicates between/3 and succ/2
* fix bug in the DCG expander
* fix bug in member/2
* recognize escape sequence \s (space) and \e (escape) if strict_iso is off
* add error detection in length/2 if given length is negative
* add built-in predicates maplist/2-5
* fix a regression bug in the FD solver about sparse domains
* increase size of FD internal stacks and fix memory leak
* port to x86_64/Darwin (Mac OS X) - many thanks to:
  Ozaki Kiichi <gclient.gaap@gmail.com>
* fix a bug in x86_64 with --disable-regs
* fix a bug when consulting a file under Win XP/Vista 32 bits
* fix a bug when consulting a file using '$VAR'(N) or '$VARNAME'(A)
* fix a bug in new_atom/1-2 which returned duplicates
* fix a bug in write/1 when an empty atom is passed
* improve portray_clause (numbervars and space before final dot)

Change in GNU Prolog version 1.4.0:

* GNU Prolog is now licensed under a dual license LGPL or GPL
* port to x86_64/MinGW - many thanks to:
  Jasper Taylor <jasper@simulistics.com> (see src/WINDOWS64)
* port to x86_64/MSVC (see src/WINDOWS64)
* add a configure option to control Windows HtmlHelp
  --disable-htmlhelp or --enable-htmlhelp[=static/dynamic]
* improve a lot (and fix some bugs in) the Windows GUI Console
* change location of gprologvars.bat under Windows (in install directory)
* increase default stack sizes (32Mb for heap, 16Mb for others)
* change the default setting for flag strict_iso: it is on now
* add control constructs to the predicate table
* modify predicate_property/2 (built_in_fd ==> built_in, add control_construct)
  only accepts a Head (a callable) (no longer a predicate indicator)
* fix a bug in the compiler (bad unification with singleton variable)
* fix a bug with strict_iso flag (was not passed to consult)
* add shebang support using #!/usr/bin/gprolog --consult-file
* modify the mangling scheme for future module support (see hexgplc)
* fix write_term default options (now numbervars(false) and namevars(false))
* fix read/1: tab and newlines are not accepted inside single/back/double quoted \ 
tokens
* add additional errors to compare/3 and keysort/2
* accept space under the top-level (same as ;)
* modify portray_clause/1-2 to add a newline at the end of the output
* add acyclic_term/1 (compatibility only since GNU Prolog does not handle cyclic \ 
terms)
* fix write/1 to treat '$VARNAME'(Atom) as a var name only if Atom is a valid \ 
var name
* rename evaluable functor atan/2 as atan2/2 and >< as xor
* add evaluable functor div/2
* detect op/3 error cases for | [] {}
* replace type_error(variable, X) by uninstantiation_error(X) (e.g. open/3-4)
* add built-in term_variables/2-3 and subsumes_term/2
* add some type tests on chars and codes (in number_chars/2, number_codes/2,..)
* fix some little bugs in the parser
* add meta_predicate property to predicate_property/2
* fix a memory leak in atom_concat/3 (in case of failure)
* add infix operator '|' (and allow it to be unquoted in read/write)
* improve top-level variables display adding () when needed
* support the ISO multifile/1 directive
* add built-ins false/0 and forall/2
* detect an instantiation_error in phrase/2-3
* allow rounding functions to accept an integer if strict_iso is off
* group all examples under a new directory 'examples'
* fix a bug in read_from_codes/2 and number_codes/2
* improve speed of built-in predicates on list (append, member, reverse,...).
* improve CTRL+C handling under the top-level
* add is_list/1 (same as list/1)
* add Prolog flags: dialect, home, host_os, host_vendor, host_cpu,
  host, arch, version, version_data, unix, argv
* add preprocessor directives if/1 else/0 elif/1 endif/0
* fix a bug on large ints in the byte-code for 64-bits machine
* fix a bug with call/2-N
* change listing/0-1 printing stream: now it is current_output
* add a new stream alias: user_error associated to stderr
* add evaluable functors: (a)sinh/1, (a)cosh/1, (a)tanh/1
* add evaluable functors: epsilon/0, lsb/1, msb/1, popcount/1
* fix compilation problem under Mac OS X Snow Leopard (force 32-bits mode)
* add evaluable functors: log/2, gcd/2, tan/1, atan2/2, pi/0, e/0
* add built-in ground/1
* rename built-in sort0 as msort
* add new error detection for keysort
* accept (but ignore) directive encoding/1
* add xor/2 (bitwise XOR) ^/2 becomes integer exponentiation
* improve randomize/0 (more different values on consecutive calls)
* relax the lexer to also accept 0'' (ISO requires 0''' or 0'\') is strict_iso is off
* fix a bug with top-level options --entry-goal and --query-goal

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.

Log message:
Document the reason for MAKE_JOBS_SAFE=no as it's not the usual sort of
problem.

Log message:
lang/gprolog: Build failure is not jobs safe

gprolog fails to build on DragonFly-*-i386.
A fatal error (exception raised) occurs on fd2c.pl:215-220 on this
platform.  The build hangs after that (halts bulk build forever),
another job apparently never exits.

Setting the package to a single job fixes the problem, so apparently
a successful build is jobs safe, but not a build failure.

Log message:
Update to GNU Prolog version 1.3.1.

Changes in GNU Prolog version 1.3.1:

* add working sigaction detection to detect fault addr (e.g. Mac OS X)
* add gplc option --no-mult-warn
* add prolog flags suspicious_warning, multifile_warning
* detect integer underflow/overflow in the parser
* fix a memory leak in catch/3
* increase limits (MAX_VAR_NAME_LENGTH=1024 and MAX_VAR_IN_TERM=10240)
* add PL_INT_LOWEST_VALUE and PL_INT_GREATEST_VALUE to gprolog.h
* prefix all global symbols, constants and types with Pl_ PL_ Pl
* fix a bug in the byte-code due to new max number of atoms
* provide a minimal gprolog.h
* detect if struct sigcontext needs asm/sigcontext.h on linux
* modify gplc: --c-compiler also sets linker and --linker added
* port to x86_64/bsd - many thanks to:
  David Holland <dholland@netbsd.org>
* fix problem using ebx as global reg (bug in gcc 4.3.2)
* fix a bug in is/2 with [X] (X should only be an integer)
* fix a bug with atoms '/*' '*/' and '%' (were not quoted)
* increase maximum number of atoms to 1048576 (2^20)
* increase default stack sizes (16Mb for heap, 8Mb for others)
* fix stack alignment for x86_64/Solaris
* include patch from Paul Eggert <eggert@cs.ucla.edu> for sparc/solaris8
* port to x86_64/Solaris - many thanks to:
  Scott L. Burson <Scott@coral8.com>
* fix a bug in arithmetics (mod)
* fix a bug in the FD solver (under 64 bits machines)

Log message:
Remove @dirrm entries from PLISTs

Log message:
Make it build on DragonFly.

Log message:
Make this configure for NetBSD amd64. While here, add DESTDIR support.

Log message:
Updated gprolog to 1.3.0.

Change in GNU Prolog version 1.3.0:

* official release (Jan 4 2007)
* change error messages emitted by the compiler to follow GNU standards
* modify doc (mainly rename manual.xxx to gprolog.xxx)
* add DESTDIR variable support in main Makefile for staged installs
* fix a bug with Prolog floats in x86_64/linux (bad stack alignment)
* port for ix86/darwin (Mac OS X)
* add check target to main Makefile
* improve Win32 ports (cygwin, MinGW, MSVC 6.0 and 2005 Express Edition)
  (MSVC port uses MinGW as.exe instead of nasm.exe - named mingw-as.exe
   provided in the setup.exe)
* rename call/2 to call_det/2
* implement call/2-11 as will be defined in the next standard
* fix various problems when compiling with gcc 4 (gcc 4.1.1)
* emit .note.GNU-stack to mark the stack as no executable
  in x86_any.c, x86_64_any.c and powerpc_any.c
* change the way objects are found (obj_chain.c) using gcc ctors
* use Doug Lea malloc for OpenBSD (problem with malloc using mmap)
* fix problems in various ports:
  alpha/linux, powerpc/darwin (Mac OS X), sparc/solaris, ix86/OpenBSD

Change in GNU Prolog version 1.2.19:

* fix 2 bugs in global variables

Change in GNU Prolog version 1.2.18:

* fix problem when compiling with gcc 3.4.0
* fix bug in term comparison involving negative integers
* add consult, ... and fix minor bugs in the Win32 GUI console menu
* fix the stack overflow detection under cygwin
* port to ix86/MinGW - many thanks to:
  Cesar Rabak <csrabak@ig.com.br>
* fix a problem in the port to x86/OpenBSD
* port to sparc/NetBSD and powerpc/NetBSD - many thanks to:
  Jason Beegan <jtb@netbsd.org>
* fix a bug in =../2 involving FD variables
* fix a bug in arithmetics (in float_{integer/fractional}_part)
* fix a bug in FD solver (wrong union with a singleton)

Change in GNU Prolog version 1.2.17:

* change configure.in: by default ebp is not used
* fix a but with CTRL+C handler not reinstalled
* fix a bug with _XXX (re)displayed under the top-level
* port to x86_64/linux - many thanks to:
  Gwenole Beauchesne <gbeauchesne@mandrakesoft.com>