--- a/cert-to-efi-hash-list.c 2018-04-21 20:59:24.814748503 +0200 +++ b/cert-to-efi-hash-list.c 2018-04-21 20:59:51.868581307 +0200 @@ -135,7 +135,7 @@ X509 *cert = PEM_read_bio_X509(cert_bio, NULL, NULL, NULL); unsigned char *cert_buf = NULL; -#if OPENSSL_VERSION_NUMBER < 0x10100000L +#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER) int cert_len = i2d_X509_CINF(cert->cert_info, &cert_buf); #else int cert_len = i2d_re_X509_tbs(cert, &cert_buf);