fix compile warning

diff --git a/ext/openssl/openssl.c b/ext/openssl/openssl.c
index 01cec4baa40353ce92b19c8a3f648f16ead2a5e0..889f40cedfc0082647e9b751ed69c81c2f3732d6 100644 (file)
--- a/ext/openssl/openssl.c
+++ b/ext/openssl/openssl.c
@@ -1059,7 +1059,7 @@ PHP_FUNCTION(openssl_x509_parse)
        for (i = 0; i < X509_get_ext_count(cert); i++) {
                extension = X509_get_ext(cert, i);
                extdata = X509_EXTENSION_get_data(extension);
-               extname = OBJ_nid2sn(OBJ_obj2nid(X509_EXTENSION_get_object(extension)));
+               extname = (char *)OBJ_nid2sn(OBJ_obj2nid(X509_EXTENSION_get_object(extension)));
                add_assoc_asn1_string(subitem, extname, extdata);
        }
        add_assoc_zval(return_value, "extensions", subitem);