diff --git a/GIT b/GIT
index 5e4c83e82..6bd7e5185 100644
--- a/GIT
+++ b/GIT
@@ -4,16 +4,7 @@ You need at least git-1.6 to install the development version.
 Please proceed as follows for the main branch:
 
 git clone git://gitorious.org/yap-git/mainline.git yap
-cd yap
-./configure
-
-Please proceed as follows for the development branch:
-
-git clone git://gitorious.org/yap-git/mainline.git yap
-cd yap
-git branch --track devel origin/devel 
-git checkout devel
-git submodule add git://prolog.cs.vu.nl/home/pl/git/chr.git packages/chr
-git submodule add git://prolog.cs.vu.nl/home/pl/git/clpqr.git packages/clpqr
-./configure
+cd yap-6
+git submodule init
+git submodule update
 
diff --git a/pl/boot.yap b/pl/boot.yap
index 81b33410a..808365247 100755
--- a/pl/boot.yap
+++ b/pl/boot.yap
@@ -112,7 +112,7 @@ true :- true.
 	nb_setval('$debug_jump',off).
 
 '$init_consult' :-
-	nb_setval('$lf_verbose',informational),
+	set_value('$lf_verbose',informational),
 	nb_setval('$if_level',0),
 	nb_setval('$endif',off),
 	nb_setval('$consulting_file',[]),
@@ -1044,10 +1044,10 @@ break :-
 '$silent_bootstrap'(F) :-
 	'$init_globals',
 	nb_setval('$if_level',0),
-	nb_getval('$lf_verbose',OldSilent),
-	nb_setval('$lf_verbose',silent),
+	get_value('$lf_verbose',OldSilent),
+	set_value('$lf_verbose',silent),
 	bootstrap(F),
-	nb_setval('$lf_verbose', OldSilent).
+	set_value('$lf_verbose', OldSilent).
 
 bootstrap(F) :-
 	'$open'(F, '$csult', Stream, 0, 0, F),
@@ -1057,7 +1057,7 @@ bootstrap(F) :-
 	getcwd(OldD),
 	cd(Dir),
 	(
-	  nb_getval('$lf_verbose',silent)
+	  get_value('$lf_verbose',silent)
 	->
 	  true
 	;
@@ -1068,7 +1068,7 @@ bootstrap(F) :-
 	cd(OldD),
 	'$end_consult',
 	(
-	  nb_getval('$lf_verbose',silent)
+	  get_value('$lf_verbose',silent)
 	->
 	  true
 	;
diff --git a/pl/consult.yap b/pl/consult.yap
index 93e61a63e..4e91efc57 100755
--- a/pl/consult.yap
+++ b/pl/consult.yap
@@ -66,7 +66,7 @@ load_files(Files,Opts) :-
 '$process_lf_opts'(V,_,_,_,_,_,_,_,_,_,_,_,_,Call) :-
 	var(V), !,
 	'$do_error'(instantiation_error,Call).
-'$process_lf_opts'([],_,_,_,_,_,_,_,Encoding,_,_,_,_,_) :-
+'$process_lf_opts'([],_,InfLevel,_,_,_,_,_,Encoding,_,_,_,_,_) :-
 	(var(Encoding) ->
 	    '$default_encoding'(Encoding)
 	    ;
@@ -78,12 +78,16 @@ load_files(Files,Opts) :-
 '$process_lf_opts'([Opt|_],_,_,_,_,_,_,_,_,_,_,_,_,Call) :-
 	'$do_error'(domain_error(unimplemented_option,Opt),Call).
 
-'$process_lf_opt'(autoload(true),_,InfLevel,_,_,_,_,_,_,_,_,_,_,_) :-
+'$process_lf_opt'(autoload(true),Silent,InfLevel,_,_,_,_,_,_,_,_,_,_,_) :-
 	get_value('$verbose_auto_load',VAL),
 	(VAL = true ->
-	    InfLevel = informational
+	    InfLevel = informational,
+	    (get_value('$lf_verbose',informational) -> true ;  Silent = silent),
+	    set_value('$lf_verbose',informational)
 	;
-	    InfLevel = silent
+	    InfLevel = silent,
+	    (get_value('$lf_verbose',silent) -> true ;  Silent = informational),
+	    set_value('$lf_verbose',silent)
 	).
 '$process_lf_opt'(autoload(false),_,_,_,_,_,_,_,_,_,_,_,_,_).
 '$process_lf_opt'(derived_from(File),_,_,_,_,_,_,_,_,_,_,_,Files,Call) :-
@@ -112,13 +116,15 @@ load_files(Files,Opts) :-
 	'$do_error'(domain_error(unimplemented_option,qcompile),Call).
 '$process_lf_opt'(qcompile(false),_,_,_,_,false,_,_,_,_,_,_,_,_).
 '$process_lf_opt'(silent(true),Silent,silent,_,_,_,_,_,_,_,_,_,_,_) :-
-	( nb_getval('$lf_verbose',Silent) -> true ;  Silent = informational),
-	nb_setval('$lf_verbose',silent).
+	( get_value('$lf_verbose',silent) -> true ;  Silent = informational),
+	set_value('$lf_verbose',silent).
+'$process_lf_opt'(silent(false),Silent,informational,_,_,_,_,_,_,_,_,_,_,_) :-
+	( get_value('$lf_verbose',informational) -> true ;  Silent = silent),
+	set_value('$lf_verbose',informational).
 '$process_lf_opt'(skip_unix_comments,_,_,_,_,_,_,_,_,skip_unix_comments,_,_,_,_).
 '$process_lf_opt'(compilation_mode(source),_,_,_,_,_,_,_,_,_,source,_,_,_).
 '$process_lf_opt'(compilation_mode(compact),_,_,_,_,_,_,_,_,_,compact,_,_,_).
 '$process_lf_opt'(compilation_mode(assert_all),_,_,_,_,_,_,_,_,_,assert_all,_,_,_).
-'$process_lf_opt'(silent(false),_,_,_,_,_,_,_,_,_,_,_,_,_).
 '$process_lf_opt'(consult(reconsult),_,_,_,_,_,_,_,_,_,_,reconsult,_,_).
 '$process_lf_opt'(consult(consult),_,_,_,_,_,_,_,_,_,_,consult,_,_).
 '$process_lf_opt'(stream(Stream),_,_,_,_,_,_,Stream,_,_,_,_,Files,Call) :-
@@ -172,7 +178,7 @@ load_files(Files,Opts) :-
 
 '$close_lf'(Silent) :- 
 	nonvar(Silent), !,
-	nb_setval('$lf_verbose',Silent).
+	set_value('$lf_verbose',Silent).
 '$close_lf'(_).
 
 ensure_loaded(Fs) :-
@@ -303,7 +309,7 @@ use_module(M,F,Is) :-
 
 '$consult_infolevel'(InfoLevel) :- nonvar(InfoLevel), !.
 '$consult_infolevel'(InfoLevel) :-
-	nb_getval('$lf_verbose',InfoLevel), InfoLevel \= [], !.
+	get_value('$lf_verbose',InfoLevel), InfoLevel \= [], !.
 '$consult_infolevel'(informational).
 
 '$start_reconsulting'(F) :-
@@ -413,7 +419,7 @@ use_module(M,F,Is) :-
 	'$include'(F, Status),
 	'$include'(Fs, Status).
 '$include'(X, Status) :-
-	nb_getval('$lf_verbose',Verbosity),
+	get_value('$lf_verbose',Verbosity),
 	'$find_in_path'(X,Y,include(X)),
 	nb_getval('$included_file',OY),
 	nb_setval('$included_file', Y),
diff --git a/pl/flags.yap b/pl/flags.yap
index 7540e8f1c..ef9f5db73 100644
--- a/pl/flags.yap
+++ b/pl/flags.yap
@@ -730,7 +730,7 @@ yap_flag(verbose_load,false) :- !,
 	set_value('$lf_verbose',silent),
 	'$set_yap_flags'(7,1).
 yap_flag(verbose_load,X) :-
-	'$do_error'(domain_error(flag_value,verbose_auto_load+X),yap_flag(verbose_auto_load,X)).
+	'$do_error'(domain_error(flag_value,verbose_load+X),yap_flag(verbose_load,X)).
 
 yap_flag(verbose_auto_load,X) :-
 	var(X), !,
@@ -848,6 +848,7 @@ yap_flag(dialect,yap).
 '$yap_system_flag'(user_output).
 '$yap_system_flag'(variable_names_may_end_with_quotes).
 '$yap_system_flag'(verbose).
+'$yap_system_flag'(verbose_load).
 '$yap_system_flag'(verbose_auto_load).
 '$yap_system_flag'(version).
 '$yap_system_flag'(version_data).
diff --git a/pl/threads.yap b/pl/threads.yap
index 33e8b6866..b50fbf9df 100644
--- a/pl/threads.yap
+++ b/pl/threads.yap
@@ -16,12 +16,14 @@
 *************************************************************************/
 
 :- meta_predicate
-	thread_create(:,-,:),
-	thread_create(:,-),
-	thread_create(:),
-	thread_at_exit(:),
-	thread_signal(+,:),
-	with_mutex(+,:),
+	thread_initialization(0),
+	thread_at_exit(0),
+	thread_create(0, -, :),
+	thread_create(0, -),
+	thread_create(0),
+	thread_signal(+, 0),
+	with_mutex(+, 0),
+	thread_signal(+,0),
 	volatile(:).
 
 volatile(P) :- var(P),