write_one_mark(FILE *fp_out, int c, pos_T *pos)
{
    if (pos->lnum != 0)
	fprintf(fp_out, "\t%c\t%ld\t%d\n", c, (long)pos->lnum, (int)pos->col);
}
write_one_mark(FILE *fp_out, int c, pos_T *pos)
{
    if (pos->lnum != 0)
	fprintf(fp_out, "\t%c\t%ld\t%d\n", c, (long)pos->lnum, (int)pos->col);
}