set the values after the entire file has been parsed. This lets
us init the debug system earlier. Plugin-specific debug flags are
now stored in struct plugin_info and struct plugin_container and
passed to the plugin via one or more debug_flags settings.
to use for warn/fatal. If no conversation function is specified,
the standard error will be used. We now only need sudo_printf()
for things that use the parser.
Fixes a problem on Solaris where undefined functions that are listed
as exported in the map file result in a link error.
Also make sure we use our glob.c if the system is missing glob().
