-/* Start a new GGC zone. */
-extern struct alloc_zone *new_ggc_zone (const char *);
-
-/* Free a complete GGC zone, destroying everything in it. */
-extern void destroy_ggc_zone (struct alloc_zone *);
-
-struct ggc_pch_data;
-
-/* Return a new ggc_pch_data structure. */
-extern struct ggc_pch_data *init_ggc_pch (void);
-
-/* The second parameter and third parameters give the address and size
- of an object. Update the ggc_pch_data structure with as much of
- that information as is necessary. The bool argument should be true
- if the object is a string. */
-extern void ggc_pch_count_object (struct ggc_pch_data *, void *, size_t, bool,
- enum gt_types_enum);
-
-/* Return the total size of the data to be written to hold all
- the objects previously passed to ggc_pch_count_object. */
-extern size_t ggc_pch_total_size (struct ggc_pch_data *);
-
-/* The objects, when read, will most likely be at the address
- in the second parameter. */
-extern void ggc_pch_this_base (struct ggc_pch_data *, void *);
-
-/* Assuming that the objects really do end up at the address
- passed to ggc_pch_this_base, return the address of this object.
- The bool argument should be true if the object is a string. */
-extern char *ggc_pch_alloc_object (struct ggc_pch_data *, void *, size_t, bool,
- enum gt_types_enum);
-
-/* Write out any initial information required. */
-extern void ggc_pch_prepare_write (struct ggc_pch_data *, FILE *);
-/* Write out this object, including any padding. The last argument should be
- true if the object is a string. */
-extern void ggc_pch_write_object (struct ggc_pch_data *, FILE *, void *,
- void *, size_t, bool);
-/* All objects have been written, write out any final information
- required. */
-extern void ggc_pch_finish (struct ggc_pch_data *, FILE *);
-
-/* A PCH file has just been read in at the address specified second
- parameter. Set up the GC implementation for the new objects. */
-extern void ggc_pch_read (FILE *, void *);
-
-\f
-/* Allocation. */
-
-/* When set, ggc_collect will do collection. */
-extern bool ggc_force_collect;
-