Use -fvisibility=hidden for all parsers.

* src/eltlparse/Makefile.am, src/kripkeparse/Makefile.am,
src/ltlparse/Makefile.am, src/neverparse/Makefile.am,
src/tgbaparse/Makefile.am: Use $(VISIBILITY_CXXFLAGS)
* src/eltlparse/public.hh, src/kripkeparse/public.hh,
src/ltlparse/ltlfile.hh, src/ltlparse/public.hh,
src/neverparse/public.hh, src/tgbaparse/public.hh:
Mark public symbols with SPOT_API.

src/kripkeparse/Makefile.am

@@ -18,7 +18,7 @@
 
 AM_CPPFLAGS = -I$(srcdir)/.. $(BUDDY_CPPFLAGS) -DYY_NO_INPUT
 # Disable -Werror because too many versions of flex yield warnings.
-AM_CXXFLAGS = $(WARNING_CXXFLAGS:-Werror=)
+AM_CXXFLAGS = $(WARNING_CXXFLAGS:-Werror=) $(VISIBILITY_CXXFLAGS)
 
 kripkeparsedir = $(pkgincludedir)/kripkeparse
 

src/kripkeparse/public.hh

@@ -38,7 +38,7 @@ namespace spot
 
 
 
-  kripke_explicit*
+  SPOT_API kripke_explicit*
   kripke_parse(const std::string& name,
                kripke_parse_error_list& error_list,
                bdd_dict* dict,
@@ -53,6 +53,7 @@ namespace spot
   /// \param error_list The error list filled by spot::ltl::parse while
   ///        parsing \a ltl_string.
   /// \return \c true if any diagnostic was output.
+  SPOT_API
   bool format_kripke_parse_errors(std::ostream& os,
                                   const std::string& filename,
                                   kripke_parse_error_list& error_list);