From b0219caef2c2261daeac20d617cbdca5e13d8d36 Mon Sep 17 00:00:00 2001
From: Dmitriy Musatkin <63878209+DmitriyMusatkin@users.noreply.github.com>
Date: Thu, 12 Oct 2023 15:32:48 -0700
Subject: [PATCH] Missing salt define (#165)

old versions of openssl do not have define for default PSS salt, so manually use -1
---
 source/unix/openssl_rsa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/source/unix/openssl_rsa.c b/source/unix/openssl_rsa.c
index 20f03814..5457a978 100644
--- a/source/unix/openssl_rsa.c
+++ b/source/unix/openssl_rsa.c
@@ -209,8 +209,8 @@ static int s_set_signature_ctx_from_algo(EVP_PKEY_CTX *ctx, enum aws_rsa_signatu
             return AWS_OP_ERR;
         }
 
-#if defined(OPENSSL_IS_BORINGSSL)
-        int saltlen = -1; /* RSA_PSS_SALTLEN_DIGEST not defined in BoringSSL */
+#if defined(OPENSSL_IS_BORINGSSL) || OPENSSL_VERSION_NUMBER < 0x10100000L
+        int saltlen = -1; /* RSA_PSS_SALTLEN_DIGEST not defined in BoringSSL and old versions of openssl */
 #else
         int saltlen = RSA_PSS_SALTLEN_DIGEST;
 #endif