* NEWS, README: New files.

versions are stricter on this.

Forward root_ to children of And.
(ltl_trad_visitor::recurse): Take a root argument.

(tgba_bdd_concrete_factory::add_relation): Rename as ...
(tgba_bdd_concrete_factory::constrain_relation): ... this.
* src/tgba/tgbabddconcretefactory.cc, src/tgbaalgos/ltl2tgba.cc:
Adjust.

not create Now/Next variable when G is the root of the formula.
(ltl_trad_visitor::ltl_trad_visitor): Take a root argument.
(ltl_trad_visitor::recurse): Create a new visitor, do not copy
the current one.
(ltl_to_tgba): Build ltl_trad_visitor with root = true.

* src/tgbaalgos/ltl2tgba.cc (ltl_trad_visitor::visit(unop::X)):
Remove FIXME about handling X(a U b) and X(a R b) better, it's
done naturally.

Fix so that !p.!Acc[g].Acc[f] + p.!Acc[g].Acc[f] + p.Acc[g].!Acc[f]
is factored as !p.!Acc[g].Acc[f] + p.(!Acc[g].Acc[f] + Acc[g].!Acc[f]),
not !Acc[g].Acc[f] + p.Acc[g].!Acc[f].

* src/SpotWrapper.hh (SpotWrapper::SPOT_XOR): Declare.
* src/SpotWrapper.cc (SpotWrapper::SPOT_XOR): Define.
(SpotWrapper::translateFormula): Use SPOT_XOR.

* Makefile.am (MAYBE_LBTT): New variables.
(SUBDIRS): Add $(MAYBE_LBTT).
(EXTRA_DIST): Add m4/lbtt.m4.
* configure.ac: Call AX_CHECK_LBTT.
* m4/lbtt.m4: New file.
* src/tgbatest/Makefile.am (check_PROGRAMS): Add spotlbtt.
(spotlbtt_SOURCES): New variables.
(TESTS): Add spotlbtt.test.
(CLEANFILE): Add config.
* src/tgbatest/defs.in (top_builddir, LBTT, LBTT_TRANSLATE): New
substitutions.
* src/tgbatest/spotlbtt.cc, src/tgbatest/spotlbtt.test: New files.

* src/main.cc (testLoop): Return 1 iff an error occured.
(main): Use testLoop's output as exit status.

Declare class SpotWrapper as a friend.
* src/SpotWrapper.h, src/SpotWrapper.cc: New files.
* src/Makefile.am (lbtt_translate_SOURCES): Add SpotWrapper.cc
and SpotWrapper.h.
* src/translate.cc (main): Add the --spot option, and build
a SpotWrapper of required.

Fix computation of states sharing the same accepting set.

Fix computation of states sharing the same accepting state.

* src/tgbaalgos/lbtt.cc (fill_todo): Add the 'first' argument
to designate initial states.
(lbtt_reachable): Adjust calls to fill_todo.  Handle the
fake initial state accepting conditions specially.
* src/tgbaalgos/lbtt.hh: Update comments.

guards with -1 in output.

* src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh: New files.
* src/tgbaalgos/Makefile.am (tgbaalgos_HEADERS): Add lbtt.hh.
(libtgbaalgos_la_SOURCES): Add lbtt.cc.
* src/tgba/bddprint.cc (print_sat_handler): Put a space after "!".
* src/tgbatest/readsave.test: Adjust spaces after "!".

* iface/gspn/gspn.cc, iface/gspn/gspn.hh: New files.
* iface/gspn/Makefile.am (libspotgspn_la_SOURCES): Add them.

current_accepting_conditions): Mark as const.
* src/tgba/succiterconcrete.cc, src/tgba/succiterconcrete.hh,
src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh,
src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh,
src/tgba/tgbatranslateproxy.cc, src/tgba/tgbatranslateproxy.hh:
Likewise.

[__cplusplus]: Wrap everything under extern "C".

(tgba_succ_iterator_concrete::current_acc_): New attribute.
* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::next): Set current_acc_.
(tgba_succ_iterator_concrete::current_accepting_conditions):
Simply return it.

* iface/Makefile.am, iface/gspn/Makefile.am: New files.
* Makefile.am (SUBDIRS): Add iface.
* iface/gspn/gspnlib.h: New file, from Yann and Souheib.

tgba_bdd_core_data::translate): Handle all_accepting_conditions.
* src/tgba/tgbabddconcretefactory.cc
(tgba_bdd_concrete_factory::finish): Fill all_accepting_conditions.

* src/Alloc.h (__INT_TO_PTR): Redefine to work around glibc 2.3.
* doc/texinfo.tex: New upstream version.

accepting conditions w.r.t. to Now variables, not Next.

Simplify, do not call next_non_false_() either side is done.

State that this is a boolean function.
* src/tgba/succiterconcrete.hh
(tgba_succ_iterator_concrete::trans_dest_,
tgba_succ_iterator_concrete::trans_set_,
tgba_succ_iterator_concrete::trans_set_left_,
tgba_succ_iterator_concrete::neg_trans_set_): Remove.
* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::tgba_succ_iterator_concrete,
tgba_succ_iterator_concrete::first): Adjust to removed members.
(tgba_succ_iterator_concrete::next): Simplify, transitions
are no labelled by boolean functions, not only conjunctions.
Suggested by Denis Poitrenaud.

function.
* src/tgba/tgbabddcoredata.cc (tgba_bdd_core_data::translate):
Likewise.
* src/tgba/tgbabddtranslatefactory.cc
(tgba_bdd_translate_factory::tgba_bdd_translate_factory): Use
tgba_bdd_core_data::translate.

New attribute.
* tgba/tgbabddcoredata.cc, tgba/tgbabddtranslatefactory.cc:
Handle nownext_set.
* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::next): Use nownext_set to simplify.

(or is it the fifth?).

* src/tgba/succiterconcrete.hh
(tgba_succ_iterator_concrete::trans_dest_,
tgba_succ_iterator_concrete::trans_set_,
tgba_succ_iterator_concrete::trans_set_left_,
tgba_succ_iterator_concrete::neg_trans_set_): New attributes.
* src/tgba/succiterconcrete.cc
(tgba_succ_iterator_concrete::tgba_succ_iterator_concrete): Initialize
new members.
(tgba_succ_iterator_concrete::first): Likewise.
(tgba_succ_iterator_concrete::next): Rewrite.
* tgba/tgbabddcoredata.hh (tgba_bdd_core_data::acc_set): New attribute.
* tgba/tgbabddcoredata.cc, tgba/tgbabddtranslatefactory.cc:
Handle acc_set.

(tgba_bdd_translate_factory::tgba_bdd_translate_factory): Translate
varandnext_set.