(tgba::project_state): New method.
* src/tgba/tgbaproduct.hh, src/tgba/tgbaproduct.cc
(tgba_product::project_state): New method.
* src/tgba/tgbabta.hh, src/tgba/tgbabta.cc
(tgba_bta_proxy::project_state): New method.
* src/tgbaalgos/magic.cc (magic_search::print_result): Take
a restrict argument.

* src/ltltest/parse.test: Test them.

and SIGQUIT.
* src/ExternalTranslator.cc (ExternalTranslator::translate): Likewise.
* src/main.cc (main): Do not intercept SIGINT in
non-interactive runs.

(tbalbtt_SOURCES, tbalbtt_CXXFLAGS): New variables.
* src/tgbatest/spotlbtt.cc [TBA]: Build tba proxies conditionally.
* src/tgbatest/spotlbtt.test: Include tbalbtt in the tests.

(tgba_tba_proxy::state_is_accepting): New method.
* src/tgbaalgos/magic.hh, src/tgbaalgos/magic.cc: New files.
* src/tgbaalgos/Makefile.am (libtgbaalgos_la_SOURCES,
tgbaalgos_HEADERS): Add them.
* src/tgbatest/ltlmagic.cc, src/tgbatest/ltlmagic.test: New files.
* src/tgbatest/Makefile.am (TESTS, ltlmagic_SOURCES,
check_PROGRAMS): Add them.

* src/tgba/tgbatba.cc, src/tgba/tgbatba.hh: New files.
* src/tgba/Makefile.am (tgba_HEADERS): Add tgbatba.hh.
(libtgba_la_SOURCES): Add tgbatba.cc.
* src/tgbatest/ltl2tgba.cc: Add option -D.

* src/misc/bddlt.hh: ... in this new file.
* src/misc/Makefile.am (misc_HEADERS): Add bddlt.hh.

(libtgbaalgos_la_SOURCES): Add reachiters.cc.
* src/tgbaalgos/dotty.cc, src/tgbaalgos/save.cc: Rewrite using
spot::tgba_reachable_iterator_breadth_first.
* src/tgbatest/explicit.test, src/tgbatest/tgbaread.test,
src/tgbatest/tripprod.test: Adjust expected output.

* iface/gspn/Makefile.am (EXTRA_DIST): Add $(TESTS).
(TESTS, check_SCRIPTS, distclean-local): New.
* iface/gspn/dcswave.test, iface/gspn/simple.test,
iface/gspn/defs.in: New files.
* iface/gspn/dottygspn.cc (main): Take the list of properties
of interest in argument.

iface/gspn/examples/DCSwave/DCSWave.net
iface/gspn/examples/DCSwave/DCSWave.tobs,
iface/gspn/examples/simple/simple.def,
iface/gspn/examples/simple/simple.net,
iface/gspn/examples/simple/simple.tobs: New files, from
Yann Thierry-Mieg.
* iface/gspn/Makefile.am (EXTRA_DIST): New variables.

Rethrow caught expections.

Define LIBGSPNRG_LDFLAGS and LIBGSPNSRG_LDFLAGS, not
LIBGSPN_LDFLAGS.
* iface/gspn/Makefile.am: Adjust, build dottygspn-rg and
dottygspn-srg instead of dottygspn.
* iface/gspn/gspn.cc (EVENT_TRUE): Undefine.
(tgba_gspn_private_::~tgba_gspn_private_): Free all_indexes.
* iface/gspn/dottygspn.cc (main): Destroy the automaton before
its dictionnary.

the root of a product to reduce its number of successors.
* src/tgba/Makefile.am (libtgba_la_SOURCES): Add tgba.cc.
* src/tgba/tgba.hh (tgba::succ_iter): Add the global_state and
global_automaton arguments.
(tgba::support_conditions, tgba::support_variables,
tgba::compute_support_conditions, tgba::compute_support_variables):
New functions.
(tgba::last_support_conditions_input_,
tgba::last_support_conditions_output_,
tgba::last_support_variables_input_,
tgba::last_support_variables_output_): New attributes.
* src/tgba/tgbabddconcrete.cc (tgba_bdd_concrete::succ_iter):
Handle the two new arguments.
(tgba_bdd_concrete::compute_support_conditions,
tgba_bdd_concrete::compute_support_variables): Implement them.
* src/tgba/tgbabddconcrete.hh: Adjust.
* src/tgba/tgbaexplicit.cc (tgba_explicit::succ_iter):	Ignore
the two new arguments.
(tgba_explicit::compute_support_conditions,
tgba_explicit::compute_support_variables): Implement them.
* src/tgba/tgbaexplicit.hh: Adjust.
* src/tgba/tgbaproduct.cc (tgba_product::succ_iter): Handle the
two new arguments.
(tgba_product::compute_support_conditions,
tgba_product::compute_support_variables): Implement them.
* src/tgba/tgbaproduct.hh: Adjust.
* iface/gspn/gspn.cc (tgba_gspn_private_::last_state_cond_input,
tgba_gspn_private_::last_state_cond_output,
(tgba_gspn_private_::tgba_gspn_private_): Set last_state_cond_input.
(tgba_gspn_private_::~tgba_gspn_private_): Delete
last_state_cond_input.
(tgba_gspn_private_::state_conds): New function, eved out
from tgba_gspn::succ_iter.
(tgba_gspn::succ_iter): Use it.  Use the two new arguments.
(tgba_gspn::compute_support_conditions,
tgba_gspn::compute_support_variables): New functions.
* iface/gspn/gspn.hh: Adjust.

bdd_uniquecomp, bdd_appexcomp, bdd_appallcomp,
bdd_appunicomp): Declare for C and C++.
* src/bddop.c (CACHEID_EXISTC, CACHEID_FORALLC,
CACHEID_UNIQUEC, CACHEID_APPEXC, CACHEID_APPALC,
CACHEID_APPUNCC): New macros.
(quatvarsetcomp): New variables.
(varset2vartable): Take a second argument to indicate negation,
set quatvarsetcomp.
(INVARSET): Honor quatvarsetcomp.
(quantify): New function, extracted from bdd_exist, bdd_forall,
and bdd_appunicomp.
(bdd_exist, bdd_forall, bdd_appunicomp): Use quantify.
(bdd_existcomp, bdd_forallcomp, bdd_appunicompcomp): New functions.
(appquantify): New function, extracted from bdd_appex, bdd_appall,
and bdd_appuni.
(bdd_appex, bdd_appall, bdd_appuni): Use appquantify.
(bdd_appexcomp, bdd_appallcomp, bdd_appunicomp): New functions.

* src/bddop.c (bdd_support): Return bddtrue when the support
is empty, because variable sets are conjunctions.

(tgba_gspn::succ_iter): Fix usage of cube.

* configure.ac: Call AX_CHECK_GSPNLIB.
* Makefile.am (EXTRA_DIST): Add m4/gspnlib.m4.
* iface/gspn/Makefile.am (AM_CPPFLAGS): Add $(LIBGSPN_CPPFLAGS).
(libspotgspn_la_LIBADD, check_PROGRAMS, dottygspn_SOURCES,
dottygspn_LDADD): New variables.
* iface/gspn/gspn.hh (gspn_interface): New class.
(gspn_exeption): Take a string argument and adjust all callers.
(operator<<): Define for gspn_exeption.
* iface/gspn/gspn.cc (gspn_interface::gspn_interface,
gspn_interface::~gspn_interface): New.
* iface/gspn/gspnlib.h: Delete, it belongs to GSPN.
* iface/gspn/dottygspn.cc: New file.

when using an already installed lbtt.

Disallow copy for security.

* src/tgba/tgbabddconcrete.hh (tgba_bdd_concrete): Disallow copy.
* src/tgba/tgbaexplicit.hh (tgba_explicit): Likewise.
* src/tgba/tgbaexplicit.cc (tgba_explicit::operator=,
tgba_explicit::tgba_explicit(tgba_explicit)): Remove.
* src/tgba/tgbabddconcreteproduct.cc
(tgba_bdd_concrete_product_factory::tgba_bdd_concrete_product_factory,
product): Take operand automata as pointers.
* src/tgba/tgbabddconcreteproduct.hh (product): Likewise.
* src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh:
(tgba_product): Disallow copy.
(tgba_product::tgba_product): Take operand automata as pointers.
* src/tgbaalgos/dotty.cc (dotty_state, dotty_rec, dotty_reachable):
Take tgba arguments as pointer.
* src/tgbaalgos/dotty.hh (dotty_reachable): Likewise.
* src/tgbaalgos/lbtt.cc (fill_todo, lbtt_reachable): Likewise.
* src/tgbaalgos/lbtt.hh (lbtt_reachable): Likewise.
* src/tgbaalgos/ltl2tgba.cc, src/tgbaalgos/ltl2tgba.hh (ltl_to_tgba):
Likewise.
* src/tgbaalgos/save.cc (save_rec, tgba_save_reachable): Likewise.
* src/tgbaalgos/save.hh (save): Likewise.
* src/tgbatest/explicit.cc, src/tgbatest/explprod.cc,
src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlprod.cc,
src/tgbatest/mixprod.cc, src/tgbatest/readsave.cc,
src/tgbatest/spotlbtt.cc, src/tgbatest/tgbaread.cc,
src/tgbatest/tripprod.cc: Likewise.

dictionaries (map of BDD variables to LTL formulae).  This was
cumbersome, because to multiply two automata we had to build a
common dictionary (the union of the two LTL formula spaces), and
install wrappers to translate each automaton's BDD answers into
the common dictionary.  This translation, that had to be repeated
when several products were nested, was time consuming and was a
hindrance for some optimizations.
In the new scheme, all automata involved in a product must
share the same dictionary.  An empty dictionary should be
constructed by the user and passed to the automaton' constructors
as necessary.
This huge change removes most code than it adds.

* src/Makefile.am (libspot_la_LIBADD): Add misc/libmisc.la.
* src/misc/bddalloc.hh, src/misc/bddalloc.cc: New files.  These
partly replace src/tgba/bddfactory.hh and src/tgba/bddfactory.cc.
* src/misc/Makefile.am: Adjust to build bddalloc.hh and bddalloc.cc.
* src/tgba/bddfactory.hh, src/tgba/bddfactory.cc,
src/tgba/dictunion.hh, src/tgba/dictunion.cc,
src/tgba/tgbabdddict.hh, src/tgba/tgbabdddict.cc,
src/tgba/tgbabddtranslatefactory.hh,
src/tgba/tgbabddtranslatefactory.cc,
src/tgba/tgbatranslateproxy.hh, src/tgba/tgbatranslateproxy.cc:
Delete.
* src/tgba/bdddict.hh, src/tgba/bdddict.cc: New files.  These
replaces tgbabdddict.hh and tgbabdddict.cc, and also part of
bddfactory.hh and bddfactory.cc.
* src/tgba/bddprint.cc, src/tgba/bddprint.hh: Adjust to
use bdd_dict* instead of tgba_bdd_dict&.
* src/tgba/succiterconcrete.cc (succ_iter_concrete::next()):
Get next_to_now from the dictionary.
* src/tgba/tgba.hh (tgba::get_dict): Return a bdd_dict*,
not a const tgba_bdd_dict*.
* src/tgba/tgbabddconcrete.cc, src/tgba/tgbabddconcrete.hh:
Adjust to use the new dictionary, stored in data_.
* src/tgba/tgbabddconcretefactory.cc,
src/tgba/tgbabddconcretefactory.hh: Likewise.  Plus
now_to_next_ is now also stored in the dictionary.
* src/tgba/tgbabddconcreteproduct.cc: Likewise.  Now
that both operand share the same product, there is not
point in using tgba_bdd_translate_factory.
* src/tgba/tgbabddcoredata.cc, src/tgba/tgbabddcoredata.hh:
Store a bdd_dict (taken as constructor argument).
(tgba_bdd_core_data::~tgba_bdd_core_data): Remove.
(tgba_bdd_core_data::translate): Remove.
(tgba_bdd_core_data::next_to_now): Remove (now in dict).
(tgba_bdd_core_data::dict): New pointer.
* src/tgba/tgbabddfactory.hh: (tgba_bdd_factory::get_dict): Remove.
* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh:
Adjust to use the new dictionary.
* src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh: Likewise.  Do
not use tgba_bdd_dict_union and tgba_bdd_translate_proxy anymore.
* src/tgbaalgos/lbtt.cc, src/tgbaalgos/save.cc: Adjust to
use bdd_dict* instead of tgba_bdd_dict&.
* src/tgbaalgos/ltl2tgba.cc, src/tgbaalgos/ltl2tgba.cc: Likewise.
(ltl_to_tgba): Take a dict argument.
* src/tgbaparse/public.hh (tgba_parse): Take a dict argument.
* src/tgbaparse/tgbaparse.yy (tgba_parse): Take a dict argument.
* src/tgbatest/explicit.cc, src/tgbatest/explprod.cc,
src/tgbatest/ltlprod.cc, src/tgbatest/mixprod.cc,
src/tgbatest/readsave.cc, src/tgbatest/spotlbtt.cc,
src/tgbatest/tgbaread.cc, src/tgbatest/tripprod.cc: Instantiate
a dictionary, and pass it to the automata' constructors.
* src/tgbatest/ltl2tgba.cc: Likewise, and remove the -o (defrag)
option.
* iface/gspn/gspn.hh (tgba_gspn::tgba_gspn): Take a bdd_dict argument.
(tgba_gspn::get_dict): Adjust return type.
* iface/gspn/gspn.cc: Do not use bdd_factory, adjust to
use the new dictionary instead.

* 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.