gentoo-overlay/app-crypt/tpm-emulator/files/tpm-emulator-0.7.4-build.patch

From ca99fe81c8aee204c1a8b7f3ca264130e54d9418 Mon Sep 17 00:00:00 2001
From: Alon Bar-Lev <alon.barlev@gmail.com>
Date: Sat, 1 Sep 2018 21:32:07 +0300
Subject: [PATCH] tpm: tpm_deprecated.c fix compare
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tpm/tpm_deprecated.c:437:7: error: ‘__builtin_memcmp_eq’ reading 20 bytes from a region of size 8 [-Werror=stringop-overflow=]
   if (memcmp(&b1, &newAuthLink, sizeof(TPM_HMAC))) {
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Bug: https://bugs.gentoo.org/show_bug.cgi?id=664198
---
 tpm/tpm_deprecated.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tpm/tpm_deprecated.c b/tpm/tpm_deprecated.c
index c362b56..4c49f54 100644
--- a/tpm/tpm_deprecated.c
+++ b/tpm/tpm_deprecated.c
@@ -434,7 +434,7 @@ TPM_RESULT TPM_ChangeAuthAsymFinish(TPM_KEY_HANDLE parentHandle,
   tpm_hmac_final(&hmac_ctx, b1.digest);
   /* 6. The TPM SHALL compare b1 with newAuthLink. The TPM SHALL
         indicate a failure if the values do not match. */
-  if (memcmp(&b1, &newAuthLink, sizeof(TPM_HMAC))) {
+  if (memcmp(&b1, newAuthLink, sizeof(TPM_HMAC))) {
     debug("TPM_ChangeAuthAsymFinish(): newAuthLink value does not match.");
     return TPM_FAIL;
   }