From 0e0c3634ecf59ecb88bff2c36947414c9cf9563a Mon Sep 17 00:00:00 2001
From: Sean Parkinson <sean@wolfssl.com>
Date: Wed, 31 Jul 2024 09:52:53 +1000
Subject: [PATCH] Don't attempt to include system headers when not required

Some builds don't require system headers: no filesystem and single
threaded.
---
 wolfssl/wolfcrypt/wc_port.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/wolfssl/wolfcrypt/wc_port.h b/wolfssl/wolfcrypt/wc_port.h
index 0cf0eea656..9824d19f3c 100644
--- a/wolfssl/wolfcrypt/wc_port.h
+++ b/wolfssl/wolfcrypt/wc_port.h
@@ -59,7 +59,9 @@
 #endif /* WOLFSSL_LINUXKM */
 
 /* THREADING/MUTEX SECTION */
-#ifdef USE_WINDOWS_API
+#if defined(SINGLE_THREADED) && defined(NO_FILESYSTEM)
+    /* No system headers required for build. */
+#elif defined(USE_WINDOWS_API)
     #if defined(WOLFSSL_PTHREADS)
         #include <pthread.h>
     #endif