tgba_explicit_succ_iterator::current_condition,
tgba_explicit_succ_iterator::current_accepting_conditions): Assert
the iteration is not finished.

* m4/debug.m4: Update CXXFLAGS too.

* src/tgbaalgos/tarjan_on_fly.cc: Fix.

matter, for consistency.
* src/tgbaalgos/tarjan_on_fly.cc, iface/gspn/ssp.cc,
src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/minimalce.cc, src/tgba/tgbareduc.cc: Adjust.

* src/tgbaalgos/ltl2tgba_fm.cc (ltl_to_tgba_fm): Handle unobs.
* src/tgbatest/ltl2tgba.cc (syntax, main): New -U option.

src/tgbaalgos/minimalce.hh, src/tgbaalgos/nesteddfs.hh,
src/tgbaalgos/tarjan_on_fly.hh, src/tgbatest/ltl2tgba.cc: Rename
emptyness_search to emptiness_search.

instead of empty().
* src/misc/bddalloc.cc (bdd_allocator::extend): Use empty() rather
than size() when checking emptiness of lists.
* src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/minimalce.cc,
src/ltlvisit/basicreduce.cc, src/ltlvisit/reduce.cc,
src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/misc/minato.cc: Likewise.
* src/ltlast/multop.cc (multop::instance): Call ->size() only once.

* wrap/python/libpy.c: Delete.
* wrap/python/swigpy.i: New file.
* wrap/python/Makefile.am (swigpy_wrap.c): Build this from swigpy.i
and use it instead of libpy.c.

src/tgbaalgos/tarjan_on_fly.hh,
src/tgbaalgos/tarjan_on_fly.cc,
src/tgbaalgos/nesteddfs.hh,
src/tgbaalgos/nesteddfs.cc,
src/tgbaalgos/minimalce.hh,
src/tgbaalgos/minimalce.cc: To correct a bug.

New algorithm for emptiness check.

src/tgbatest/reductgba.cc,
src/tgbatest/ltl2tgba.cc:
Add option for reduction of TGBA.

* src/tgbatest/emptchk.test, src/tgbaalgos/Makefile.am,
src/tgbaalgos/tarjan_on_fly.hh, src/tgbaalgos/tarjan_on_fly.cc,
src/tgbaalgos/nesteddfs.hh, src/tgbaalgos/nesteddfs.cc,
src/tgbaalgos/minimalce.hh, src/tgbaalgos/minimalce.cc,
src/tgbaalgos/colordfs.hh, src/tgbaalgos/colordfs.cc:
Remove some bugs.

src/tgbaalgos/gtec/ce.cc:
Modification of construction of counter example.

* src/tgbaalgos/reductgba_sim.hh src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/reductgba_sim_del.cc,
src/tgba/tgbareduc.hh, src/tgba/tgbareduc.cc:
Modification for delayed simulation.


* src/tgbaalgos/gtec/ce.hh,
* src/tgbatest/ltl2tgba.cc,

src/tgbaalgos/tarjan_on_fly.cc,
src/tgbaalgos/nesteddfs.hh,
src/tgbaalgos/nesteddfs.cc,
src/tgbaalgos/minimalce.hh,
src/tgbaalgos/minimalce.cc,
src/tgbaalgos/colordfs.hh,
src/tgbaalgos/colordfs.cc: four new algorithms for emptyness check.

src/tgbaalgos/gtec/ce.hh,
src/tgbaalgos/gtec/ce.cc: Adapt the counter exemple for the ce
object in minimalce.hh.

src/tgbatest/ltl2tgba.cc,
src/tgbatest/emptchk.test,
src/tgbaalgos/Makefile.am: Add files for emptyness-check.


* src/tgbaalgos/reductgba_sim_del.cc: Restrict to degeneralize automata.
* src/tgba/tgbareduc.hh: src/tgba/tgbareduc.cc: Merge transition
for scc reduce.

* doc/Makefile.am (dist_pkgdata_DATA): Add spot.tag.

does not appear when listing mainpage.dox.

Typos in Doxygen comments.

* src/sanity/includes.test: Include files twice to check include
guards.

assert() is disabled.

to force C++ linking.

disabled.

based on code from <Denis.Poitrenaud@lip6.fr>.
* src/ltlvisit/Makefile.am (libltlvisit_la_SOURCES, ltlvisit_HEADERS):
Add them.

src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlparse/fmterror.cc, src/ltlparse/public.hh,
src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh,
src/ltlvisit/dump.cc, src/ltlvisit/dump.hh,
src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh,
src/misc/escape.cc, src/misc/escape.hh, src/tgba/bdddict.cc,
src/tgba/bdddict.hh, src/tgba/bddprint.cc, src/tgba/bddprint.hh,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh,
src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/save.cc, src/tgbaalgos/save.hh,
src/tgbaalgos/gtec/status.cc, src/tgbaalgos/gtec/status.hh,
src/tgbaparse/fmterror.cc, src/tgbaparse/public.hh: Include <iosfwd>
in headers, and prefer <ostream> in the body whenever possible.
* src/sanity/style.test, HACKING: Check and document this.

src/ltlast/binop.hh, src/ltlast/constant.hh,
src/ltlast/formula.hh, src/ltlast/multop.hh,
src/ltlast/predecl.hh, src/ltlast/refformula.hh,
src/ltlast/unop.hh, src/ltlast/visitor.hh: Use file to introduce
each file.

`#include' references are correct.

parameters.
* src/tgbaalgos/ltl2tgba_lacim.hh (ltl_to_tgba_lacim): Likewise.

* wrap/python/Makefile.am (_buddy_la_LDFLAGS): Move libspotswigpy.la ...
(_buddy_la_LIBADD): ... here.

* src/Makefile.am (libspot_la_LDFLAGS): Add -no-undefined.