Rename hash_create to hash0_create by a #define. This fixes a

symbol collision when building PHP with IMAP and MySQL (Bug #13859).
The bug was originally fixed by MySQL in a more obtrusive way, by
replacing all occurrences of hash_create with hash0_create.  This
change was applied to the MySQL tree as follows:

ChangeSet@1.1616.2924.6, 2007-01-11 12:31:52+01:00, kent@mysql.com +9 -0
  Many files:
    Reverted change for bug#13859, applied smaller patch from Marko

include/hash0hash.h

@@ -18,6 +18,9 @@ typedef struct hash_cell_struct hash_cell_t;
 
 typedef void*	hash_node_t;
 
+/* Fix Bug #13859: symbol collision between imap/mysql */
+#define hash_create hash0_create
+
 /*****************************************************************
 Creates a hash table with >= n array cells. The actual number
 of cells is chosen to be a prime number slightly bigger than n. */