include config.h in all *.cc files

This helps working around missing C functions like strcasecmp that do
not exist everywhere (e.g. on Cygwin), and for which lib/ supplies a
replacement.  Unfortunately we do not have such build in our current
continuous integration suite, so we cannot easily detect files where
such config.h inclusion would be useful.  Therefore this patch simply
makes it mandatory to include config.h in *.cc files.  Including this
in public *.hh file is currently forbidden.

* spot/gen/automata.cc, spot/gen/formulas.cc,
spot/kripke/fairkripke.cc, spot/kripke/kripke.cc,
spot/ltsmin/ltsmin.cc, spot/misc/game.cc, spot/parseaut/fmterror.cc,
spot/parsetl/fmterror.cc, spot/parsetl/parsetl.yy,
spot/priv/bddalloc.cc, spot/priv/freelist.cc, spot/priv/satcommon.cc,
spot/priv/trim.cc, spot/priv/weight.cc, spot/ta/ta.cc,
spot/ta/taexplicit.cc, spot/ta/taproduct.cc, spot/ta/tgtaexplicit.cc,
spot/ta/tgtaproduct.cc, spot/taalgos/dot.cc,
spot/taalgos/emptinessta.cc, spot/taalgos/minimize.cc,
spot/taalgos/reachiter.cc, spot/taalgos/statessetbuilder.cc,
spot/taalgos/stats.cc, spot/taalgos/tgba2ta.cc, spot/tl/apcollect.cc,
spot/tl/contain.cc, spot/tl/declenv.cc, spot/tl/defaultenv.cc,
spot/tl/dot.cc, spot/tl/exclusive.cc, spot/tl/hierarchy.cc,
spot/tl/length.cc, spot/tl/ltlf.cc, spot/tl/mark.cc,
spot/tl/mutation.cc, spot/tl/nenoform.cc, spot/tl/print.cc,
spot/tl/randomltl.cc, spot/tl/relabel.cc, spot/tl/remove_x.cc,
spot/tl/simplify.cc, spot/tl/snf.cc, spot/tl/unabbrev.cc,
spot/twa/acc.cc, spot/twa/bdddict.cc, spot/twa/bddprint.cc,
spot/twa/formula2bdd.cc, spot/twa/taatgba.cc, spot/twa/twa.cc,
spot/twa/twagraph.cc, spot/twa/twaproduct.cc, spot/twaalgos/aiger.cc,
spot/twaalgos/alternation.cc, spot/twaalgos/are_isomorphic.cc,
spot/twaalgos/bfssteps.cc, spot/twaalgos/canonicalize.cc,
spot/twaalgos/cleanacc.cc, spot/twaalgos/cobuchi.cc,
spot/twaalgos/complement.cc, spot/twaalgos/complete.cc,
spot/twaalgos/compsusp.cc, spot/twaalgos/couvreurnew.cc,
spot/twaalgos/cycles.cc, spot/twaalgos/degen.cc,
spot/twaalgos/determinize.cc, spot/twaalgos/dot.cc,
spot/twaalgos/dtbasat.cc, spot/twaalgos/dtwasat.cc,
spot/twaalgos/dualize.cc, spot/twaalgos/emptiness.cc,
spot/twaalgos/gtec/ce.cc, spot/twaalgos/gtec/gtec.cc,
spot/twaalgos/gtec/sccstack.cc, spot/twaalgos/gtec/status.cc,
spot/twaalgos/gv04.cc, spot/twaalgos/hoa.cc,
spot/twaalgos/iscolored.cc, spot/twaalgos/isdet.cc,
spot/twaalgos/isunamb.cc, spot/twaalgos/isweakscc.cc,
spot/twaalgos/langmap.cc, spot/twaalgos/lbtt.cc,
spot/twaalgos/ltl2taa.cc, spot/twaalgos/ltl2tgba_fm.cc,
spot/twaalgos/magic.cc, spot/twaalgos/mask.cc,
spot/twaalgos/minimize.cc, spot/twaalgos/neverclaim.cc,
spot/twaalgos/parity.cc, spot/twaalgos/postproc.cc,
spot/twaalgos/powerset.cc, spot/twaalgos/product.cc,
spot/twaalgos/rabin2parity.cc, spot/twaalgos/randomgraph.cc,
spot/twaalgos/randomize.cc, spot/twaalgos/reachiter.cc,
spot/twaalgos/relabel.cc, spot/twaalgos/remfin.cc,
spot/twaalgos/remprop.cc, spot/twaalgos/sbacc.cc,
spot/twaalgos/sccfilter.cc, spot/twaalgos/sccinfo.cc,
spot/twaalgos/se05.cc, spot/twaalgos/sepsets.cc,
spot/twaalgos/simulation.cc, spot/twaalgos/split.cc,
spot/twaalgos/stats.cc, spot/twaalgos/strength.cc,
spot/twaalgos/stripacc.cc, spot/twaalgos/stutter.cc,
spot/twaalgos/sum.cc, spot/twaalgos/tau03.cc,
spot/twaalgos/tau03opt.cc, spot/twaalgos/totgba.cc,
spot/twaalgos/toweak.cc, spot/twaalgos/translate.cc,
spot/twaalgos/word.cc, tests/core/acc.cc, tests/core/bitvect.cc,
tests/core/checkpsl.cc, tests/core/checkta.cc, tests/core/consterm.cc,
tests/core/emptchk.cc, tests/core/equalsf.cc, tests/core/graph.cc,
tests/core/ikwiad.cc, tests/core/intvcmp2.cc, tests/core/intvcomp.cc,
tests/core/kind.cc, tests/core/kripkecat.cc, tests/core/length.cc,
tests/core/ltlrel.cc, tests/core/ngraph.cc, tests/core/parity.cc,
tests/core/randtgba.cc, tests/core/readltl.cc, tests/core/reduc.cc,
tests/core/safra.cc, tests/core/sccif.cc, tests/core/syntimpl.cc,
tests/core/taatgba.cc, tests/core/tostring.cc, tests/core/trival.cc,
tests/core/twagraph.cc, tests/ltsmin/modelcheck.cc,
spot/parseaut/scanaut.ll, spot/parsetl/scantl.ll: Include config.h.
* spot/gen/Makefile.am, spot/graph/Makefile.am,
spot/kripke/Makefile.am, spot/ltsmin/Makefile.am,
spot/parseaut/Makefile.am, spot/parsetl/Makefile.am,
spot/priv/Makefile.am, spot/ta/Makefile.am, spot/taalgos/Makefile.am,
spot/tl/Makefile.am, spot/twa/Makefile.am, spot/twaalgos/Makefile.am,
spot/twaalgos/gtec/Makefile.am, tests/Makefile.am: Add the -I lib/
flags.
* tests/sanity/includes.test: Catch missing config.h in *.cc, and
diagnose config.h in *.hh.
* tests/sanity/style.test: Better diagnostics.
10 jobs for next in 255 minutes and 32 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #1486
arch-clang

00:27:42

passed #1487
arch-gcc-glibcxxdebug

00:35:34

passed #1484
debian-stable-gcc

00:33:42

passed #1485
debian-unstable-gcc-coverage

00:31:27

88.9%
passed #1490
debpkg-stable

02:09:07

passed #1506
debpkg-unstable

02:04:13

passed #1488
mingw-shared

00:09:19

passed #1489
mingw-static

00:11:12

failed #1491
debpkg-unstable

01:37:44

 
  Publish
passed #1492
dput
publish-unstable

00:01:29