From f2b5a13d0231032420416974be3d678d26e79a9b Mon Sep 17 00:00:00 2001
From: Tom Cosgrove <tom.cosgrove@arm.com>
Date: Wed, 26 Apr 2023 17:00:12 +0100
Subject: [PATCH] Fix MBEDTLS_BSWAP32 on armcc 5

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
---
 library/alignment.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/library/alignment.h b/library/alignment.h
index 41823485a..ab15986e5 100644
--- a/library/alignment.h
+++ b/library/alignment.h
@@ -181,6 +181,9 @@ inline void mbedtls_put_unaligned_uint64(void *p, uint64_t x)
 
 /* Detect armcc built-in byteswap routine */
 #if defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 410000) && !defined(MBEDTLS_BSWAP32)
+#if defined(__ARM_ACLE)  /* ARM Compiler 6 - earlier versions don't need a header */
+#include <arm_acle.h>
+#endif
 #define MBEDTLS_BSWAP32 __rev
 #endif