library for eesrg. Define the WITH_GSPN_EESRG conditional.
* iface/gspn/Makefile.am (gspn_HEADERS, check_PROGRAMS): Add the
eesrg items in condition WITH_GSPN_EESRG.
(libspotgspneesrg_la_LIBADD, libspotgspneesrg_la_CPPFLAGS)
(libspotgspneesrg_la_SOURCES): Define only in condition
WITH_GSPN_EESRG.
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.