GitLab

* src/ltlvisit/simplify.cc, doc/tl/tl.tex: Remove the rule.
* src/ltltest/reduc0.test: Add a regression test.
* src/ltltest/reduccmp.test: Adjust test cases for its removal.
* NEWS: Mention it.

When something like XFa & FXa is reduced, the subformulae XFa and FXa
are both rewritten separately to XFa, and then the vector of arguments
of the And operators, [XFa,XFa], is passed through a specialized loop
that searches of the form X(...) that can potentially be simplified with
some other terms.  This loop converts the vector [XFa,XFa] into the set
{XFa,XFa}={XFa} and forgot to deal with the case where the insertion
would actually not add an existing subformula.

* src/ltlvisit/simplify.cc: Fix the code for Or, and And.
* src/ltltest/reduc0.test: New file, to test it.
* src/ltltest/Makefile.am (TESTS): Add it.
* src/ltltest/reduccmp.test: Add an extra test that does not
trigger the bug (because reduccmp.test uses more than basic
optimizations, and the implication-based simplifications are
already able to detect that XFa and FXa are equivalent).

* NEWS: Mention this.
* COPYING: Replace by GPL v3.
* src/sanity/style.test: Check files with the wrong license,
in case we forgot to update it during a merge.
* Makefile.am, bench/Makefile.am, bench/emptchk/Makefile.am,
bench/emptchk/defs.in, bench/emptchk/ltl-human.sh,
bench/emptchk/ltl-random.sh, bench/emptchk/pml-clserv.sh,
bench/emptchk/pml-eeaean.sh, bench/emptchk/pml2tgba.pl,
bench/ltl2tgba/big, bench/ltl2tgba/defs.in, bench/ltl2tgba/known,
bench/ltl2tgba/lbtt2csv.pl, bench/ltl2tgba/ltl2baw.in,
bench/ltl2tgba/parseout.pl, bench/ltl2tgba/small,
bench/ltlclasses/Makefile.am, bench/ltlclasses/defs.in,
bench/ltlclasses/run, bench/ltlcounter/Makefile.am,
bench/ltlcounter/defs.in, bench/ltlcounter/run,
bench/scc-stats/Makefile.am, bench/scc-stats/stats.cc,
bench/split-product/Makefile.am, bench/split-product/cutscc.cc,
bench/split-product/pml2tgba.pl, bench/wdba/Makefile.am,
bench/wdba/defs.in, bench/wdba/run, configure.ac, doc/Makefile.am,
doc/dot.in, doc/tl/Makefile.am, iface/Makefile.am,
iface/dve2/Makefile.am, iface/dve2/defs.in, iface/dve2/dve2.cc,
iface/dve2/dve2.hh, iface/dve2/dve2check.cc,
iface/dve2/dve2check.test, iface/dve2/finite.test,
iface/dve2/kripke.test, iface/gspn/Makefile.am, iface/gspn/common.cc,
iface/gspn/common.hh, iface/gspn/dcswave.test,
iface/gspn/dcswaveeltl.test, iface/gspn/dcswavefm.test,
iface/gspn/dcswaveltl.test, iface/gspn/dottygspn.cc,
iface/gspn/dottyssp.cc, iface/gspn/gspn.cc, iface/gspn/gspn.hh,
iface/gspn/ltlgspn.cc, iface/gspn/simple.test, iface/gspn/ssp.cc,
iface/gspn/ssp.hh, iface/gspn/udcsefm.test, iface/gspn/udcseltl.test,
iface/gspn/udcsfm.test, iface/gspn/udcsltl.test, src/Makefile.am,
src/bin/Makefile.am, src/bin/common_cout.cc, src/bin/common_cout.hh,
src/bin/common_finput.cc, src/bin/common_finput.hh,
src/bin/common_output.cc, src/bin/common_output.hh,
src/bin/common_post.cc, src/bin/common_post.hh, src/bin/common_r.cc,
src/bin/common_r.hh, src/bin/common_range.cc, src/bin/common_range.hh,
src/bin/common_setup.cc, src/bin/common_setup.hh,
src/bin/common_sys.hh, src/bin/genltl.cc, src/bin/ltl2tgba.cc,
src/bin/ltl2tgta.cc, src/bin/ltlfilt.cc, src/bin/man/Makefile.am,
src/bin/randltl.cc, src/eltlparse/Makefile.am,
src/eltlparse/eltlparse.yy, src/eltlparse/eltlscan.ll,
src/eltlparse/fmterror.cc, src/eltlparse/parsedecl.hh,
src/eltlparse/public.hh, src/eltltest/Makefile.am,
src/eltltest/acc.cc, src/eltltest/acc.test, src/eltltest/defs.in,
src/eltltest/nfa.cc, src/eltltest/nfa.test, src/evtgba/Makefile.am,
src/evtgba/evtgba.cc, src/evtgba/evtgba.hh, src/evtgba/evtgbaiter.hh,
src/evtgba/explicit.cc, src/evtgba/explicit.hh, src/evtgba/product.cc,
src/evtgba/product.hh, src/evtgba/symbol.cc, src/evtgba/symbol.hh,
src/evtgbaalgos/Makefile.am, src/evtgbaalgos/dotty.cc,
src/evtgbaalgos/dotty.hh, src/evtgbaalgos/reachiter.cc,
src/evtgbaalgos/reachiter.hh, src/evtgbaalgos/save.cc,
src/evtgbaalgos/save.hh, src/evtgbaalgos/tgba2evtgba.cc,
src/evtgbaalgos/tgba2evtgba.hh, src/evtgbaparse/Makefile.am,
src/evtgbaparse/evtgbaparse.yy, src/evtgbaparse/evtgbascan.ll,
src/evtgbaparse/fmterror.cc, src/evtgbaparse/parsedecl.hh,
src/evtgbaparse/public.hh, src/evtgbatest/Makefile.am,
src/evtgbatest/defs.in, src/evtgbatest/explicit.cc,
src/evtgbatest/explicit.test, src/evtgbatest/ltl2evtgba.cc,
src/evtgbatest/ltl2evtgba.test, src/evtgbatest/product.cc,
src/evtgbatest/product.test, src/evtgbatest/readsave.cc,
src/evtgbatest/readsave.test, src/kripke/Makefile.am,
src/kripke/fairkripke.cc, src/kripke/fairkripke.hh,
src/kripke/kripke.cc, src/kripke/kripke.hh,
src/kripke/kripkeexplicit.cc, src/kripke/kripkeexplicit.hh,
src/kripke/kripkeprint.cc, src/kripke/kripkeprint.hh,
src/kripkeparse/Makefile.am, src/kripkeparse/fmterror.cc,
src/kripkeparse/kripkeparse.yy, src/kripkeparse/kripkescan.ll,
src/kripkeparse/parsedecl.hh, src/kripkeparse/public.hh,
src/kripkeparse/scankripke.ll, src/kripketest/Makefile.am,
src/kripketest/bad_parsing.test, src/kripketest/defs.in,
src/kripketest/kripke.test, src/kripketest/parse_print_test.cc,
src/ltlast/Makefile.am, src/ltlast/allnodes.hh,
src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/automatop.cc, src/ltlast/automatop.hh, src/ltlast/binop.cc,
src/ltlast/binop.hh, src/ltlast/bunop.cc, src/ltlast/bunop.hh,
src/ltlast/constant.cc, src/ltlast/constant.hh, src/ltlast/formula.cc,
src/ltlast/formula.hh, src/ltlast/formula_tree.cc,
src/ltlast/formula_tree.hh, src/ltlast/multop.cc,
src/ltlast/multop.hh, src/ltlast/nfa.cc, src/ltlast/nfa.hh,
src/ltlast/predecl.hh, src/ltlast/refformula.cc,
src/ltlast/refformula.hh, src/ltlast/unop.cc, src/ltlast/unop.hh,
src/ltlast/visitor.hh, src/ltlenv/Makefile.am, src/ltlenv/declenv.cc,
src/ltlenv/declenv.hh, src/ltlenv/defaultenv.cc,
src/ltlenv/defaultenv.hh, src/ltlenv/environment.hh,
src/ltlparse/Makefile.am, src/ltlparse/fmterror.cc,
src/ltlparse/ltlfile.cc, src/ltlparse/ltlfile.hh,
src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll,
src/ltlparse/parsedecl.hh, src/ltlparse/public.hh,
src/ltltest/Makefile.am, src/ltltest/consterm.cc,
src/ltltest/consterm.test, src/ltltest/defs.in, src/ltltest/equals.cc,
src/ltltest/equals.test, src/ltltest/kind.cc, src/ltltest/kind.test,
src/ltltest/length.cc, src/ltltest/length.test,
src/ltltest/lunabbrev.test, src/ltltest/nenoform.test,
src/ltltest/parse.test, src/ltltest/parseerr.test,
src/ltltest/readltl.cc, src/ltltest/reduc.cc, src/ltltest/reduc.test,
src/ltltest/reduccmp.test, src/ltltest/reducpsl.test,
src/ltltest/syntimpl.cc, src/ltltest/syntimpl.test,
src/ltltest/tostring.cc, src/ltltest/tostring.test,
src/ltltest/tunabbrev.test, src/ltltest/tunenoform.test,
src/ltltest/utf8.test, src/ltltest/uwrm.test,
src/ltlvisit/Makefile.am, src/ltlvisit/apcollect.cc,
src/ltlvisit/apcollect.hh, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/contain.cc,
src/ltlvisit/contain.hh, src/ltlvisit/destroy.cc,
src/ltlvisit/destroy.hh, src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh,
src/ltlvisit/dump.cc, src/ltlvisit/dump.hh, src/ltlvisit/lbt.cc,
src/ltlvisit/lbt.hh, src/ltlvisit/length.cc, src/ltlvisit/length.hh,
src/ltlvisit/lunabbrev.cc, src/ltlvisit/lunabbrev.hh,
src/ltlvisit/mark.cc, src/ltlvisit/mark.hh, src/ltlvisit/nenoform.cc,
src/ltlvisit/nenoform.hh, src/ltlvisit/postfix.cc,
src/ltlvisit/postfix.hh, src/ltlvisit/randomltl.cc,
src/ltlvisit/randomltl.hh, src/ltlvisit/reduce.cc,
src/ltlvisit/reduce.hh, src/ltlvisit/relabel.cc,
src/ltlvisit/relabel.hh, src/ltlvisit/simpfg.cc,
src/ltlvisit/simpfg.hh, src/ltlvisit/simplify.cc,
src/ltlvisit/simplify.hh, src/ltlvisit/snf.cc, src/ltlvisit/snf.hh,
src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh,
src/ltlvisit/tunabbrev.cc, src/ltlvisit/tunabbrev.hh,
src/ltlvisit/wmunabbrev.cc, src/ltlvisit/wmunabbrev.hh,
src/misc/Makefile.am, src/misc/acccompl.cc, src/misc/acccompl.hh,
src/misc/accconv.cc, src/misc/accconv.hh, src/misc/bareword.cc,
src/misc/bareword.hh, src/misc/bddalloc.cc, src/misc/bddalloc.hh,
src/misc/bddlt.hh, src/misc/bddop.cc, src/misc/bddop.hh,
src/misc/casts.hh, src/misc/escape.cc, src/misc/escape.hh,
src/misc/fixpool.hh, src/misc/freelist.cc, src/misc/freelist.hh,
src/misc/hash.hh, src/misc/hashfunc.hh, src/misc/intvcmp2.cc,
src/misc/intvcmp2.hh, src/misc/intvcomp.cc, src/misc/intvcomp.hh,
src/misc/ltstr.hh, src/misc/memusage.cc, src/misc/memusage.hh,
src/misc/minato.cc, src/misc/minato.hh, src/misc/modgray.cc,
src/misc/modgray.hh, src/misc/mspool.hh, src/misc/optionmap.cc,
src/misc/optionmap.hh, src/misc/random.cc, src/misc/random.hh,
src/misc/timer.cc, src/misc/timer.hh, src/misc/unique_ptr.hh,
src/misc/version.cc, src/misc/version.hh, src/neverparse/Makefile.am,
src/neverparse/fmterror.cc, src/neverparse/neverclaimparse.yy,
src/neverparse/neverclaimscan.ll, src/neverparse/parsedecl.hh,
src/neverparse/public.hh, src/saba/Makefile.am,
src/saba/explicitstateconjunction.cc,
src/saba/explicitstateconjunction.hh, src/saba/saba.cc,
src/saba/saba.hh, src/saba/sabacomplementtgba.cc,
src/saba/sabacomplementtgba.hh, src/saba/sabastate.hh,
src/saba/sabasucciter.hh, src/sabaalgos/Makefile.am,
src/sabaalgos/sabadotty.cc, src/sabaalgos/sabadotty.hh,
src/sabaalgos/sabareachiter.cc, src/sabaalgos/sabareachiter.hh,
src/sabatest/Makefile.am, src/sabatest/defs.in,
src/sabatest/sabacomplementtgba.cc, src/sanity/Makefile.am,
src/sanity/readme.test, src/sanity/style.test, src/ta/Makefile.am,
src/ta/ta.cc, src/ta/ta.hh, src/ta/taexplicit.cc,
src/ta/taexplicit.hh, src/ta/taproduct.cc, src/ta/taproduct.hh,
src/ta/tgta.cc, src/ta/tgta.hh, src/ta/tgtaexplicit.cc,
src/ta/tgtaexplicit.hh, src/ta/tgtaproduct.cc, src/ta/tgtaproduct.hh,
src/taalgos/Makefile.am, src/taalgos/dotty.cc, src/taalgos/dotty.hh,
src/taalgos/emptinessta.cc, src/taalgos/emptinessta.hh,
src/taalgos/minimize.cc, src/taalgos/minimize.hh,
src/taalgos/reachiter.cc, src/taalgos/reachiter.hh,
src/taalgos/statessetbuilder.cc, src/taalgos/statessetbuilder.hh,
src/taalgos/stats.cc, src/taalgos/stats.hh, src/taalgos/tgba2ta.cc,
src/taalgos/tgba2ta.hh, src/tgba/Makefile.am, src/tgba/bdddict.cc,
src/tgba/bdddict.hh, src/tgba/bddprint.cc, src/tgba/bddprint.hh,
src/tgba/formula2bdd.cc, src/tgba/formula2bdd.hh,
src/tgba/futurecondcol.cc, src/tgba/futurecondcol.hh,
src/tgba/public.hh, src/tgba/sba.hh, src/tgba/state.hh,
src/tgba/statebdd.cc, src/tgba/statebdd.hh, src/tgba/succiter.hh,
src/tgba/succiterconcrete.cc, src/tgba/succiterconcrete.hh,
src/tgba/taatgba.cc, src/tgba/taatgba.hh, src/tgba/tgba.cc,
src/tgba/tgba.hh, src/tgba/tgbabddconcrete.cc,
src/tgba/tgbabddconcrete.hh, src/tgba/tgbabddconcretefactory.cc,
src/tgba/tgbabddconcretefactory.hh,
src/tgba/tgbabddconcreteproduct.cc,
src/tgba/tgbabddconcreteproduct.hh, src/tgba/tgbabddcoredata.cc,
src/tgba/tgbabddcoredata.hh, src/tgba/tgbabddfactory.hh,
src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh,
src/tgba/tgbakvcomplement.cc, src/tgba/tgbakvcomplement.hh,
src/tgba/tgbaproduct.cc, src/tgba/tgbaproduct.hh,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasafracomplement.hh,
src/tgba/tgbascc.cc, src/tgba/tgbascc.hh, src/tgba/tgbasgba.cc,
src/tgba/tgbasgba.hh, src/tgba/tgbatba.cc, src/tgba/tgbatba.hh,
src/tgba/tgbaunion.cc, src/tgba/tgbaunion.hh, src/tgba/wdbacomp.cc,
src/tgba/wdbacomp.hh, src/tgbaalgos/Makefile.am,
src/tgbaalgos/bfssteps.cc, src/tgbaalgos/bfssteps.hh,
src/tgbaalgos/cutscc.cc, src/tgbaalgos/cutscc.hh,
src/tgbaalgos/cycles.cc, src/tgbaalgos/cycles.hh,
src/tgbaalgos/degen.cc, src/tgbaalgos/degen.hh,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh,
src/tgbaalgos/dottydec.cc, src/tgbaalgos/dottydec.hh,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/dupexp.hh,
src/tgbaalgos/eltl2tgba_lacim.cc, src/tgbaalgos/eltl2tgba_lacim.hh,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/emptiness.hh,
src/tgbaalgos/emptiness_stats.hh, src/tgbaalgos/gtec/Makefile.am,
src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/gtec/ce.hh,
src/tgbaalgos/gtec/explscc.cc, src/tgbaalgos/gtec/explscc.hh,
src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/gtec.hh,
src/tgbaalgos/gtec/nsheap.cc, src/tgbaalgos/gtec/nsheap.hh,
src/tgbaalgos/gtec/sccstack.cc, src/tgbaalgos/gtec/sccstack.hh,
src/tgbaalgos/gtec/status.cc, src/tgbaalgos/gtec/status.hh,
src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh, src/tgbaalgos/isdet.cc,
src/tgbaalgos/isdet.hh, src/tgbaalgos/isweakscc.cc,
src/tgbaalgos/isweakscc.hh, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/lbtt.hh, src/tgbaalgos/ltl2taa.cc,
src/tgbaalgos/ltl2taa.hh, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_lacim.cc,
src/tgbaalgos/ltl2tgba_lacim.hh, src/tgbaalgos/magic.cc,
src/tgbaalgos/magic.hh, src/tgbaalgos/minimize.cc,
src/tgbaalgos/minimize.hh, src/tgbaalgos/ndfs_result.hxx,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/postproc.cc, src/tgbaalgos/postproc.hh,
src/tgbaalgos/powerset.cc, src/tgbaalgos/powerset.hh,
src/tgbaalgos/projrun.cc, src/tgbaalgos/projrun.hh,
src/tgbaalgos/randomgraph.cc, src/tgbaalgos/randomgraph.hh,
src/tgbaalgos/reachiter.cc, src/tgbaalgos/reachiter.hh,
src/tgbaalgos/reducerun.cc, src/tgbaalgos/reducerun.hh,
src/tgbaalgos/reductgba_sim.cc, src/tgbaalgos/reductgba_sim.hh,
src/tgbaalgos/replayrun.cc, src/tgbaalgos/replayrun.hh,
src/tgbaalgos/rundotdec.cc, src/tgbaalgos/rundotdec.hh,
src/tgbaalgos/safety.cc, src/tgbaalgos/safety.hh,
src/tgbaalgos/save.cc, src/tgbaalgos/save.hh, src/tgbaalgos/scc.cc,
src/tgbaalgos/scc.hh, src/tgbaalgos/sccfilter.cc,
src/tgbaalgos/sccfilter.hh, src/tgbaalgos/se05.cc,
src/tgbaalgos/se05.hh, src/tgbaalgos/simulation.cc,
src/tgbaalgos/simulation.hh, src/tgbaalgos/stats.cc,
src/tgbaalgos/stats.hh, src/tgbaalgos/tau03.cc,
src/tgbaalgos/tau03.hh, src/tgbaalgos/tau03opt.cc,
src/tgbaalgos/tau03opt.hh, src/tgbaalgos/weight.cc,
src/tgbaalgos/weight.hh, src/tgbaparse/Makefile.am,
src/tgbaparse/fmterror.cc, src/tgbaparse/parsedecl.hh,
src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy,
src/tgbaparse/tgbascan.ll, src/tgbatest/Makefile.am,
src/tgbatest/babiak.test, src/tgbatest/bddprod.test,
src/tgbatest/complementation.cc, src/tgbatest/complementation.test,
src/tgbatest/cycles.test, src/tgbatest/defs.in,
src/tgbatest/degendet.test, src/tgbatest/degenid.test,
src/tgbatest/dfs.test, src/tgbatest/dupexp.test,
src/tgbatest/eltl2tgba.test, src/tgbatest/emptchk.test,
src/tgbatest/emptchke.test, src/tgbatest/emptchkr.test,
src/tgbatest/explicit.cc, src/tgbatest/explicit.test,
src/tgbatest/explicit2.cc, src/tgbatest/explicit2.test,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explpro4.test, src/tgbatest/explprod.cc,
src/tgbatest/explprod.test, src/tgbatest/intvcmp2.cc,
src/tgbatest/intvcomp.cc, src/tgbatest/intvcomp.test,
src/tgbatest/kv.test, src/tgbatest/ltl2neverclaim.test,
src/tgbatest/ltl2ta.test, src/tgbatest/ltl2tgba.cc,
src/tgbatest/ltl2tgba.test, src/tgbatest/ltlcounter.test,
src/tgbatest/ltlprod.cc, src/tgbatest/ltlprod.test,
src/tgbatest/mixprod.cc, src/tgbatest/mixprod.test,
src/tgbatest/neverclaimread.test, src/tgbatest/nondet.test,
src/tgbatest/obligation.test, src/tgbatest/powerset.cc,
src/tgbatest/randpsl.test, src/tgbatest/randtgba.cc,
src/tgbatest/randtgba.test, src/tgbatest/readsave.test,
src/tgbatest/renault.test, src/tgbatest/scc.test,
src/tgbatest/sccsimpl.test, src/tgbatest/spotlbtt.test,
src/tgbatest/spotlbtt2.test, src/tgbatest/taatgba.cc,
src/tgbatest/taatgba.test, src/tgbatest/tgbaread.cc,
src/tgbatest/tgbaread.test, src/tgbatest/tripprod.cc,
src/tgbatest/tripprod.test, src/tgbatest/wdba.test,
src/tgbatest/wdba2.test, wrap/Makefile.am, wrap/python/Makefile.am,
wrap/python/ajax/Makefile.am, wrap/python/ajax/spot.in,
wrap/python/buddy.i, wrap/python/spot.i,
wrap/python/tests/Makefile.am, wrap/python/tests/alarm.py,
wrap/python/tests/bddnqueen.py, wrap/python/tests/implies.py,
wrap/python/tests/interdep.py, wrap/python/tests/ltl2tgba.py,
wrap/python/tests/ltl2tgba.test, wrap/python/tests/ltlparse.py,
wrap/python/tests/ltlsimple.py, wrap/python/tests/minato.py,
wrap/python/tests/modgray.py, wrap/python/tests/optionmap.py,
wrap/python/tests/parsetgba.py, wrap/python/tests/run.in,
wrap/python/tests/setxor.py: Update licence version, and replace the
FSF address by a URL.

* src/sanity/style.test: Check for missing Copyrights blurbs.
* src/sanity/Makefile.am: Run style.test before includes.test.
* iface/gspn/dcswave.test, iface/gspn/dcswaveeltl.test,
iface/gspn/dcswavefm.test, iface/gspn/dcswaveltl.test,
iface/gspn/simple.test, iface/gspn/udcsefm.test,
iface/gspn/udcseltl.test, iface/gspn/udcsfm.test,
iface/gspn/udcsltl.test, iface/nips/nipstest/dotty.test,
iface/nips/nipstest/emptiness.test, src/eltltest/acc.test,
src/eltltest/nfa.test, src/saba/sabacomplementtgba.cc,
src/sabatest/sabacomplementtgba.cc, src/tgbatest/eltl2tgba.test,
src/tgbatest/taatgba.test: Add missing Copyright blurb.

* configure.ac: Enable parallel-tests.
* src/eltltest/defs.in, src/evtgbatest/defs.in,
src/ltltest/defs.in, src/tgbatest/defs.in: Always output verbose
tests.  Make a subdirectory for each test case.
* src/ltltest/Makefile.am, src/eltltest/Makefile.am,
src/tgbatest/Makefile.am, src/evtgbatest/Makefile.am: Remove
CLEANFILES and clean the test subdirectories in a distclean-local
rule instead.
* src/eltltest/acc.test, src/eltltest/nfa.test,
src/evtgbatest/explicit.test, src/evtgbatest/ltl2evtgba.test,
src/evtgbatest/product.test, src/evtgbatest/readsave.test,
src/ltltest/equals.test, src/ltltest/lunabbrev.test,
src/ltltest/nenoform.test, src/ltltest/parse.test,
src/ltltest/parseerr.test, src/ltltest/reduc.test,
src/ltltest/reduccmp.test, src/ltltest/syntimpl.test,
src/ltltest/tostring.test, src/ltltest/tunabbrev.test,
src/ltltest/tunenoform.test, src/tgbatest/bddprod.test,
src/tgbatest/complementation.test, src/tgbatest/dfs.test,
src/tgbatest/dupexp.test, src/tgbatest/eltl2tgba.test,
src/tgbatest/emptchk.test, src/tgbatest/emptchke.test,
src/tgbatest/emptchkr.test, src/tgbatest/explicit.test,
src/tgbatest/explpro2.test, src/tgbatest/explpro3.test,
src/tgbatest/explpro4.test, src/tgbatest/explprod.test,
src/tgbatest/ltl2neverclaim.test, src/tgbatest/ltl2tgba.test,
src/tgbatest/ltlprod.test, src/tgbatest/mixprod.test,
src/tgbatest/readsave.test, src/tgbatest/reduccmp.test,
src/tgbatest/reductgba.test, src/tgbatest/scc.test,
src/tgbatest/spotlbtt.test, src/tgbatest/tgbaread.test,
src/tgbatest/tripprod.test: Adjust to run from a subdirectory.

for ELTL.  This is a new version of the work started in 2008 with
LTL and ELTL formulae now sharing the same class hierarchy.

* configure.ac: Adjust for src/eltlparse/ and src/eltltest/
directories, and call AX_BOOST_BASE.
* m4/boost.m4: New file defining AX_BOOST_BASE([MINIMUM-VERSION]).
* src/Makefile.am: Add eltlparse and eltltest.
* src/eltlparse/: New directory.  Contains the ELTL parser.
* src/eltltest/: New directory.  Contains tests related to
ELTL (parser and AST).
* src/ltlast/Makefile.am: Adjust for ELTL AST files.
* src/ltlast/automatop.cc, src/ltlast/automatop.hh: New files.
Represent automaton operators nodes used in ELTL ASTs.
* src/ltlast/nfa.cc, src/ltlast/nfa.hh: New files.  Represent
simple NFAs used internally by automatop nodes.
* src/ltlast/allnode.hh, src/ltlast/predecl.hh,
src/ltlast/visitor.hh: Adjust for automatop.
* src/ltlvisit/basicreduce.cc, src/ltlvisit/clone.cc,
src/ltlvisit/clone.hh, src/ltlvisit/contain.cc,
src/ltlvisit/dotty.cc, src/ltlvisit/nenoform.cc,
src/ltlvisit/postfix.cc, src/ltlvisit/postfix.hh,
src/ltlvisit/reduce.cc, src/ltlvisit/syntimpl.cc,
src/ltlvisit/tostring.cc: Because LTL and ELTL formulae share the
same class hierarchy, LTL visitors need to handle automatop nodes
to compile.  When it's meaningful the visitor applies on automatop
nodes or simply assert(0) otherwise.
* src/tgba/tgbabddconcretefactory.cc (create_anonymous_state),
src/tgba/tgbabddconcretefactory.hh (create_anonymous_state): New
function used by the LaCIM translation algorithm for ELTL.
* src/tgbaalgos/Makefile.am: Adjust for eltl2tgba_lacim* files.
* src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/eltl2tgba_lacim.hh: New files.  Implementation of
the LaCIM translation algorithm for ELTL.
* src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/ltl2tgba_lacim.cc:
Handle automatop nodes in the translation by an assert(0).
* src/tgbatest/Makefile.am: Adjust for eltl2tgba.* files.
* src/src/tgbatest/eltl2tgba.cc, src/tgbatest/eltl2tgba.test: New
files

Here are the reverted patches:
8c0d1003,
25a31142,
9afbaf63,
dc0005f4,
543190f2.