Allow the GC statics to be re-initialized

These changes are enough to call `GC_deinit` and then `GC_init` again
on Windows. There are likely other statics that need to be initialized,
but we can discover those as we find them.

1 files changed, 3 insertions, 0 deletions

diff --git a/include/gc.h b/include/gc.h
index 13c7c2a9..3540b13f 100644
--- a/include/gc.h
+++ b/include/gc.h
@@ -598,6 +598,9 @@ GC_API void GC_CALL GC_set_max_heap_size(GC_word /* n */);
 GC_API void GC_CALL GC_exclude_static_roots(void * /* low_address */,
                                             void * /* high_address_plus_1 */);
 
+/* Clear the number of entries in the exclustion table.  Wizards only.  */
+GC_API void GC_CALL GC_clear_exclusion_table(void);
+
 /* Clear the set of root segments.  Wizards only.                       */
 GC_API void GC_CALL GC_clear_roots(void);