try to improve dll search

pl/load_foreign.yap

@@ -24,8 +24,6 @@
 
 :- use_system_module( '$_modules', ['$do_import'/3]).
 
-:- multifile user:system_foreign/1.
-
 
 
 /**
@@ -37,6 +35,11 @@
 
 */
 
+maplist_(_, [], []).
+maplist_(Pred, [A1|L1], [A2|L2]) :-
+    call(Pred, A1, A2),
+    maplist_(Pred, L1, L2).
+
 /** @pred load_foreign_files( _Files_, _Libs_, _InitRoutine_)
 
 should be used, from inside YAP, to load object files produced by the C
@@ -58,96 +61,44 @@ if defined, or in the default library.
 YAP supports the SWI-Prolog interface to loading foreign code, the shlib package.
 
 */
+
+
 load_foreign_files(Objs,Libs,Entry) :-
     source_module(M),
-    '$check_objs_for_load_foreign_files'(Objs,NewObjs,load_foreign_files(Objs,Libs,Entry)),
-'$check_libs_for_load_foreign_files'(Libs,NewLibs,load_foreign_files(Objs,Libs,Entry)),
-'$check_entry_for_load_foreign_files'(Entry,load_foreign_files(Objs,Libs,Entry)),
-    (
-	recordzifnot( '$foreign', M:'$foreign'(Objs,Libs,Entry), _)
-	->
-
+    %G = load_foreign_files(Objs,Libs,Entry),
+    '$absfs'( Objs, [file_type(executable),
+			     access(read),
+			     expand(true),
+			     file_errors(fail)], NewObjs),
+    maplist_( '$load_lib', Libs, NewLibs),
    '$load_foreign_files'(NewObjs,NewLibs,Entry),
-        (
-	    prolog_load_context(file, F)
-	->
-	    ignore( recordzifnot( '$load_foreign_done', [F, M], _) )
-	;
-	    true
-        )
-	;
-	true
-   ),
-   !.
+    !,
+    prolog_load_context(file, F),
+    ignore( recordzifnot( '$load_foreign_done', [F, M], _) ).
 
-/** @pred load_absolute_foreign_files( _Files_, _Libs_, _InitRoutine_)
+'$absfs'([],_P,[]).
+'$absfs'([F|Fs],P,[NF|NFs]) :-
+    '$name_object'(F, P, NF),
+    !,
+    '$absfs'(Fs,P,NFs).
+'$absfs'([F|Fs],P,[F|NFs]) :-
+    '$absfs'(Fs,P,NFs).
+
+'$name_object'(I, P, O) :-
+    atom(I),
+    !,
+    absolute_file_name(foreign(I), O, P).
+'$name_object'(I, P, O) :-
+    absolute_file_name(I, O, P).
+
+'$load_lib'(_,L,L).
+
+/** @pred load_absolute_foreign_files( Files, Libs, InitRoutine)
 
 Loads object files produced by the C compiler. It is useful when no search should be performed and instead one has the full paths to the _Files_ and _Libs_.
 
 */
-load_absolute_foreign_files(Objs,Libs,Entry) :-
-    source_module(M),
-    (
-	recordzifnot( '$foreign', M:'$foreign'(Objs,Libs,Entry), _)
-	->
-	'$load_foreign_files'(Objs,Libs,Entry),
-        (
-	    prolog_load_context(file, F)
-	->
-	    ignore( recordzifnot( '$load_foreign_done', [F, M], _) )
-	;
-	    true
-        )
-	;
-	true
-   ),
-   !.
-
-'$check_objs_for_load_foreign_files'(V,_,G) :- var(V), !,
-	'$do_error'(instantiation_error,G).
-'$check_objs_for_load_foreign_files'([],[],_) :- !.
-'$check_objs_for_load_foreign_files'([Obj|Objs],[NObj|NewObjs],G) :- !,
-	'$check_obj_for_load_foreign_files'(Obj,NObj,G),
-	'$check_objs_for_load_foreign_files'(Objs,NewObjs,G).
-'$check_objs_for_load_foreign_files'(Objs,_,G) :-
-	'$do_error'(type_error(list,Objs),G).
-
-'$check_obj_for_load_foreign_files'(V,_,G) :- var(V), !,
-	'$do_error'(instantiation_error,G).
-'$check_obj_for_load_foreign_files'(Obj,NewObj,_) :- atom(Obj), !,
-        ( atom(Obj), Obj1 = foreign(Obj) ; Obj1 = Obj ),
-	absolute_file_name(foreign(Obj),[file_type(executable),
-					 access(read),
-					 expand(true),
-					 file_errors(fail)
-					], NewObj).
-'$check_obj_for_load_foreign_files'(Obj,_,G) :-
-	'$do_error'(type_error(atom,Obj),G).
-
-'$check_libs_for_load_foreign_files'(V,_,G) :- var(V), !,
-	'$do_error'(instantiation_error,G).
-'$check_libs_for_load_foreign_files'([],[],_) :- !.
-'$check_libs_for_load_foreign_files'([Lib|Libs],[NLib|NLibs],G) :- !,
-	'$check_lib_for_load_foreign_files'(Lib,NLib,G),
-	'$check_libs_for_load_foreign_files'(Libs,NLibs,G).
-'$check_libs_for_load_foreign_files'(Libs,_,G) :-
-	'$do_error'(type_error(list,Libs),G).
-
-'$check_lib_for_load_foreign_files'(V,_,G) :- var(V), !,
-	'$do_error'(instantiation_error,G).
-'$check_lib_for_load_foreign_files'(Lib,NLib,_) :- atom(Lib), !,
-	'$process_obj_suffix'(Lib,NewLib),
-	'$checklib_prefix'(NewLib,NLib).
-'$check_lib_for_load_foreign_files'(Lib,_,G) :-
-	'$do_error'(type_error(atom,Lib),G).
-
-'$process_obj_suffix'(Obj,Obj) :-
-	current_prolog_flag(shared_object_extension, ObjSuffix),
-	sub_atom(Obj, _, _, 0, ObjSuffix), !.
-'$process_obj_suffix'(Obj,NewObj) :-
-	current_prolog_flag(shared_object_extension, ObjSuffix),
-	atom_concat([Obj,'.',ObjSuffix],NewObj).
-
+load_absolute_foreign_files(_Objs,_Libs,_Entry).
 '$checklib_prefix'(F,F) :- is_absolute_file_name(F), !.
 '$checklib_prefix'(F, F) :-
 	sub_atom(F, 0, _, _, lib), !.
@@ -163,12 +114,6 @@ load_absolute_foreign_files(Objs,Libs,Entry) :-
     fail.
 '$import_foreign'(_F, _M0, _M).
 
-'$check_entry_for_load_foreign_files'(V,G) :- var(V), !,
-	'$do_error'(instantiation_error,G).
-'$check_entry_for_load_foreign_files'(Entry,_) :- atom(Entry), !.
-'$check_entry_for_load_foreign_files'(Entry,G) :-
-	'$do_error'(type_error(atom,Entry),G).
-
 /** @pred open_shared_object(+ _File_, - _Handle_)
 
 File is the name of a shared object file (called dynamic load

pl/pathconf.yap

@@ -74,10 +74,13 @@ commons_directory( Path ):-
 foreign_directory(Home) :-
     current_prolog_flag(prolog_foreign_directory, Home),
     Home \= ''.
+foreign_directory(C) :-
+    current_prolog_flag(windows, true),
+    file_search_path(path, C).
 foreign_directory( '.').
 foreign_directory(yap('lib/Yap')).
-foreign_directory( Path ):-
-    system_foreign( Path ).
+%foreign_directory( Path ):-
+%    system_foreign( Path ).
 
 /**
   @pred prolog_file_type(?Suffix:atom, ?Handler:atom) is nondet, dynamic