Change safestack reimplementation to match 0.9.8. Fix additional gcc 4.2 value not used warnings.

diff --git a/ssl/s2_clnt.c b/ssl/s2_clnt.c
index 7b3b7d8..e976ba8 100644
--- a/ssl/s2_clnt.c
+++ b/ssl/s2_clnt.c

@@ -466,11 +466,11 @@
 			return(-1);
 			}
 
-		sk_SSL_CIPHER_set_cmp_func(sk,ssl_cipher_ptr_id_cmp);
+		(void)sk_SSL_CIPHER_set_cmp_func(sk,ssl_cipher_ptr_id_cmp);
 
 		/* get the array of ciphers we will accept */
 		cl=SSL_get_ciphers(s);
-		sk_SSL_CIPHER_set_cmp_func(cl,ssl_cipher_ptr_id_cmp);
+		(void)sk_SSL_CIPHER_set_cmp_func(cl,ssl_cipher_ptr_id_cmp);
 
 		/*
 		 * If server preference flag set, choose the first

diff --git a/ssl/s2_srvr.c b/ssl/s2_srvr.c
index fa21d6f..6490d0b 100644
--- a/ssl/s2_srvr.c
+++ b/ssl/s2_srvr.c

@@ -657,7 +657,7 @@
 			{
 			if (sk_SSL_CIPHER_find(allow,sk_SSL_CIPHER_value(prio,z)) < 0)
 				{
-				sk_SSL_CIPHER_delete(prio,z);
+				(void)sk_SSL_CIPHER_delete(prio,z);
 				z--;
 				}
 			}

diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c
index bb07175..ccb30e0 100644
--- a/ssl/ssl_cert.c
+++ b/ssl/ssl_cert.c

@@ -764,7 +764,7 @@
 	if(x != NULL)
 		X509_free(x);
 	
-	sk_X509_NAME_set_cmp_func(stack,oldcmp);
+	(void)sk_X509_NAME_set_cmp_func(stack,oldcmp);
 
 	return ret;
 	}

diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c
index e573025..5ba5b32 100644
--- a/ssl/ssl_ciph.c
+++ b/ssl/ssl_ciph.c

@@ -1417,7 +1417,7 @@
 	if (*cipher_list_by_id != NULL)
 		sk_SSL_CIPHER_free(*cipher_list_by_id);
 	*cipher_list_by_id = tmp_cipher_list;
-	sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
+	(void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
 
 	return(cipherstack);
 	}