[o]

1. obstack
2. obstack_1grow
3. obstack_1grow_fast
4. obstack_alignment_mask
5. obstack_alloc
6. obstack_base
7. obstack_begin
8. obstack_blank
9. obstack_blank_fast
10. obstack_chunk_alloc
11. obstack_chunk_free
12. obstack_chunk_size
13. obstack_chunkfun
14. obstack_copy
15. obstack_copy0
16. obstack_empty_p
17. obstack_finish
18. obstack_free
19. obstack_freefun
20. obstack_grow
21. obstack_grow0
22. obstack_init
23. obstack_int_grow
24. obstack_int_grow_fast
25. obstack_make_room
26. obstack_memory_used
27. obstack_next_free
28. obstack_object_size
29. obstack_ptr_grow
30. obstack_ptr_grow_fast
31. obstack_room
32. obstack_specify_allocation
33. obstack_specify_allocation_with_arg
34. ogsnames
35. on_failure_jump
36. on_failure_keep_string_jump
37. open_input_file
38. open_output_file
39. openconf
40. opendir
41. opentoken
42. option
43. optional_argument
44. outofrange
45. overflo