X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/2f10a596a7cbd6b7cdccfb56d29fd214b6d99759..3f764fe5762a4a88968bdcf169be9b853fdeae69:/lib/obstack.h

diff --git a/lib/obstack.h b/lib/obstack.h
index 7a0ee112..c0fc9ac6 100644
--- a/lib/obstack.h
+++ b/lib/obstack.h
@@ -372,12 +372,12 @@ extern int obstack_exit_failure;
 
 # define obstack_object_size(OBSTACK)					\
   __extension__								\
-  ({ struct obstack *__o = (OBSTACK);					\
+  ({ struct obstack const *__o = (OBSTACK);				\
      (unsigned) (__o->next_free - __o->object_base); })
 
 # define obstack_room(OBSTACK)						\
   __extension__								\
-  ({ struct obstack *__o = (OBSTACK);					\
+  ({ struct obstack const *__o = (OBSTACK);				\
      (unsigned) (__o->chunk_limit - __o->next_free); })
 
 # define obstack_make_room(OBSTACK,length)				\
@@ -390,7 +390,7 @@ __extension__								\
 
 # define obstack_empty_p(OBSTACK)					\
   __extension__								\
-  ({ struct obstack *__o = (OBSTACK);					\
+  ({ struct obstack const *__o = (OBSTACK);				\
      (__o->chunk->prev == 0 && __o->next_free - __o->chunk->contents == 0); })
 
 # define obstack_grow(OBSTACK,where,length)				\