Avoid warnings.

crypto/asn1/tasn_enc.c

@@ -494,7 +494,7 @@ static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
 		{
 		for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk);
 							i++, tder++)
-			sk_ASN1_VALUE_set(sk, i, tder->field);
+			(void)sk_ASN1_VALUE_set(sk, i, tder->field);
 		}
 	OPENSSL_free(derlst);
 	OPENSSL_free(tmpdat);

crypto/bn/bn_div.c

@@ -325,7 +325,7 @@ X) -> 0x%08X\n",
 				t2 -= d1;
 				}
 #else /* !BN_LLONG */
-			BN_ULONG t2l,t2h,ql,qh;
+			BN_ULONG t2l,t2h;
 
 			q=bn_div_words(n0,n1,d0);
 #ifdef BN_DEBUG_LEVITTE
@@ -343,9 +343,12 @@ X) -> 0x%08X\n",
 			t2l = d1 * q;
 			t2h = BN_UMULT_HIGH(d1,q);
 #else
+			{
+			BN_ULONG ql, qh;
 			t2l=LBITS(d1); t2h=HBITS(d1);
 			ql =LBITS(q);  qh =HBITS(q);
 			mul64(t2l,t2h,ql,qh); /* t2=(BN_ULLONG)d1*q; */
+			}
 #endif
 
 			for (;;)
@@ -549,7 +552,7 @@ X) -> 0x%08X\n",
 				t2 -= d1;
 				}
 #else /* !BN_LLONG */
-			BN_ULONG t2l,t2h,ql,qh;
+			BN_ULONG t2l,t2h;
 
 			q=bn_div_words(n0,n1,d0);
 #ifdef BN_DEBUG_LEVITTE
@@ -567,9 +570,12 @@ X) -> 0x%08X\n",
 			t2l = d1 * q;
 			t2h = BN_UMULT_HIGH(d1,q);
 #else
+			{
+			BN_ULONG ql, qh;
 			t2l=LBITS(d1); t2h=HBITS(d1);
 			ql =LBITS(q);  qh =HBITS(q);
 			mul64(t2l,t2h,ql,qh); /* t2=(BN_ULLONG)d1*q; */
+			}
 #endif
 
 			for (;;)

crypto/cryptlib.c

@@ -278,7 +278,7 @@ int CRYPTO_get_new_dynlockid(void)
 	else
 		/* If we found a place with a NULL pointer, put our pointer
 		   in it.  */
-		sk_CRYPTO_dynlock_set(dyn_locks,i,pointer);
+		(void)sk_CRYPTO_dynlock_set(dyn_locks,i,pointer);
 	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
 
 	if (i == -1)
@@ -320,7 +320,7 @@ void CRYPTO_destroy_dynlockid(int i)
 #endif
 			if (pointer->references <= 0)
 				{
-				sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
+				(void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
 				}
 			else
 				pointer = NULL;

crypto/ex_data.c

@@ -354,7 +354,7 @@ static int def_add_index(EX_CLASS_ITEM *item, long argl, void *argp,
 			}
 		}
 	toret = item->meth_num++;
-	sk_CRYPTO_EX_DATA_FUNCS_set(item->meth, toret, a);
+	(void)sk_CRYPTO_EX_DATA_FUNCS_set(item->meth, toret, a);
 err:
 	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
 	return toret;

crypto/x509/x509_vfy.c

@@ -216,7 +216,7 @@ int X509_verify_cert(X509_STORE_CTX *ctx)
 				 */
 				X509_free(x);
 				x = xtmp;
-				sk_X509_set(ctx->chain, i - 1, x);
+				(void)sk_X509_set(ctx->chain, i - 1, x);
 				ctx->last_untrusted=0;
 				}
 			}