The size of PL_hash_seed depends on the chosen hash algorithm.

For most 8 is fine, but SipHash needs 16.

diff --git a/perlvars.h b/perlvars.h
index 68471a0..f8bb821 100644 (file)
--- a/perlvars.h
+++ b/perlvars.h
@@ -233,4 +233,4 @@ PERLVAR(G, malloc_mutex, perl_mutex)        /* Mutex for malloc */
 #endif
 
 PERLVARI(G, hash_seed_set, bool, FALSE)        /* perl.c */
-PERLVARA(G, hash_seed, 8, unsigned char) /* and hv.h */
+PERLVARA(G, hash_seed, PERL_HASH_SEED_BYTES, unsigned char) /* and hv.h */