} GpxWritingOptions;
gboolean a_gpx_read_file ( VikTrwLayer *trw, FILE *f );
void a_gpx_write_file ( VikTrwLayer *trw, FILE *f, GpxWritingOptions *options );
void a_gpx_write_track_file ( VikTrack *trk, FILE *f, GpxWritingOptions *options );
} GpxWritingOptions;
gboolean a_gpx_read_file ( VikTrwLayer *trw, FILE *f );
void a_gpx_write_file ( VikTrwLayer *trw, FILE *f, GpxWritingOptions *options );
void a_gpx_write_track_file ( VikTrack *trk, FILE *f, GpxWritingOptions *options );