Silence gcc-4 warnings about sk_sort()

Tell it we deliberately ignore the return value, (we really don't
care what the old comparison function was).

diff --git a/lib/libcrypto/x509/x509_policy.c b/lib/libcrypto/x509/x509_policy.c
index 03f0f10..e51e193 100644 (file)
--- a/lib/libcrypto/x509/x509_policy.c
+++ b/lib/libcrypto/x509/x509_policy.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: x509_policy.c,v 1.23 2023/04/28 15:39:29 tb Exp $ */
+/*     $OpenBSD: x509_policy.c,v 1.24 2023/04/28 15:57:38 tb Exp $ */
 /*
  * Copyright (c) 2022, Google Inc.
  *
@@ -380,7 +380,7 @@ process_certificate_policies(const X509 *x509, X509_POLICY_LEVEL *level,
                goto err;
        }
 
-       sk_POLICYINFO_set_cmp_func(policies, policyinfo_cmp);
+       (void)sk_POLICYINFO_set_cmp_func(policies, policyinfo_cmp);
        sk_POLICYINFO_sort(policies);
        cert_has_any_policy = 0;
        for (i = 0; i < sk_POLICYINFO_num(policies); i++) {
@@ -544,7 +544,8 @@ process_policy_mappings(const X509 *cert,
                }
 
                /* Sort to group by issuerDomainPolicy. */
-               sk_POLICY_MAPPING_set_cmp_func(mappings, compare_issuer_policy);
+               (void)sk_POLICY_MAPPING_set_cmp_func(mappings,
+                   compare_issuer_policy);
                sk_POLICY_MAPPING_sort(mappings);
 
                if (mapping_allowed) {
@@ -631,7 +632,7 @@ process_policy_mappings(const X509 *cert,
        }
 
        /* Sort to group by subjectDomainPolicy. */
-       sk_POLICY_MAPPING_set_cmp_func(mappings, compare_subject_policy);
+       (void)sk_POLICY_MAPPING_set_cmp_func(mappings, compare_subject_policy);
        sk_POLICY_MAPPING_sort(mappings);
 
        /* Convert |mappings| to our "expected_policy_set" representation. */
@@ -995,7 +996,7 @@ X509_policy_check(const STACK_OF(X509) *certs,
                            user_policies);
                        if (user_policies_sorted == NULL)
                                goto err;
-                       sk_ASN1_OBJECT_set_cmp_func(user_policies_sorted,
+                       (void)sk_ASN1_OBJECT_set_cmp_func(user_policies_sorted,
                            asn1_object_cmp);
                        sk_ASN1_OBJECT_sort(user_policies_sorted);
                }