(ltlgspn_rg_LDADD, ltlgspn_srg_LDADD, ltlgspn_rg_SOURCES)
(ltlgspn_srg_SOURCES): New variables.
(check_PROGRAMS): Add ltlgspn-rg and ltlgspn-srg.

* iface/gspn/Makefile.am (gspn_HEADERS, gspndir): Install
gspn.hh.