allocated by ggc_alloc_string are stored in an obstack which is
never shrunk. Identifiers are uniquely stored in a hash table.
- We have our own private hash table implementation. libiberty's
+ We use cpplib's hash table implementation. libiberty's
hashtab.c is not used because it requires 100% average space
overhead per string, which is unacceptable. Also, this algorithm
is faster. */
#include "tm.h"
#include "ggc.h"
#include "tree.h"
-#include "hashtable.h"
+#include "symtab.h"
#include "cpplib.h"
/* The "" allocated string. */