From 9b2345dc8e2c31a23af5f563aaca0d23ac253753 Mon Sep 17 00:00:00 2001
From: Sean Parkinson <sean@wolfssl.com>
Date: Fri, 21 Jul 2023 09:57:53 +1000
Subject: [PATCH] SM3 ASM file: protect with check for WOLFSSL_SM3

Protect sm3_asm.S with check for WOLFSSL_SM3.
Change configure.ac to define WOLFSSL_SM3 in ASM flags when SM3 enabled
and enabling intelasm.
---
 configure.ac            |  1 +
 wolfcrypt/src/sm3_asm.S | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/configure.ac b/configure.ac
index ee29445bcc..bb5ac620e9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2733,6 +2733,7 @@ then
             esac
         fi
         AS_IF([test "x$ENABLED_AESGCM" != "xno"],[AM_CCASFLAGS="$AM_CCASFLAGS -DHAVE_AESGCM"])
+        AS_IF([test "x$ENABLED_SM3" != "xno"],[AM_CCASFLAGS="$AM_CCASFLAGS -DWOLFSSL_SM3"])
     fi
 
     if test "$ENABLED_INTELASM" = "yes"
diff --git a/wolfcrypt/src/sm3_asm.S b/wolfcrypt/src/sm3_asm.S
index 62c3ed8118..60adc9dd24 100644
--- a/wolfcrypt/src/sm3_asm.S
+++ b/wolfcrypt/src/sm3_asm.S
@@ -1,3 +1,13 @@
 
+#ifdef HAVE_CONFIG_H
+    #include <config.h>
+#endif
+
+#include <wolfssl/wolfcrypt/settings.h>
+
+#ifdef WOLFSSL_SM3
+
 #error "Contact wolfSSL to get the implementation of this file"
 
+#endif
+