Log Message:
(lang/gprolog) Updated to 1.4.5, thanks maya@ to fix calloc issue

Change in GNU Prolog version 1.4.5 (Feb 2018):
pp* fix a bug in soft-cut (when a cut appears in the if-part)
* fix bug when consulting multifile predicates with alternatives
* add ?- ISO prefix operator
* add gplc option --new-top-level (add top-level command-line option handling)
* fix a bug on linux witg gcc 6.3.0 (or binutils): needs PIC code
* fix a bug in findall/4
* fix a bug in select/5 under Windows
* fix a bug in the compiler
* fix a bug in read/1
* fix large address awarenes under cygwin32 (configure.in)
* improve memory limitation of acyclic_term/1
* improve term output (write/1 and friends)
* improve error handling for options (e.g. in write_term/3)
* fix bug with cut in the if-part of if-then(-else)
* fix port to x86_64/OpenBSD
  (machine kindly provided by Duncan Patton a Campbell)
* fix a bug with Apple/Yosemite gcc = LLVM version 6.0 (clang-600.0.56) on x86_64
* allow to define more atoms with MAX_ATOM env var on 64 bits machines
* fix a bug in bagof/3 when used as findall/3
* port to sparc64/OpenBSD
  (machine kindly provided by Duncan Patton a Campbell)
* add built-in predicate findall/4
* fix a bug with linedit when environment variable LINEDIT=no
* fix bugs in the FD solver
* set socket option SO_REUSEADDR at socket creation
* support for alternate Prolog file extension .prolog
* fix a bug in atoms for 1-char atom '\0' (now acts as the empty atom)
* fix problems with Apple/Mavericks gcc = LLVM version 5.0 (clang-500.2.79) on x86_64
* remove clang warnings (uninitialized variables)
* fix bugs in the lexer of the form 0bop 2 when bop is an infix op
* fix terminal ANSI sequence handling in linedit
* increase internal compiler data sizes
* fix bug in gprolog.h (invalid 64 bits PL_MAX_INTEGER)