From f7482d96e640ebedaf0dc79e22901012f466b161 Mon Sep 17 00:00:00 2001
From: Anthony Hu <anthony@wolfssl.com>
Date: Wed, 31 Aug 2022 09:05:00 -0400
Subject: [PATCH] Windows cl.exe does not support -Wextra other flags

---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3937a6fab..c6f0ae5b6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -169,7 +169,12 @@ find_package(Threads)
 # Example for map file and custom linker script
 #set(CMAKE_EXE_LINKER_FLAGS " -Xlinker -Map=output.map -T\"${CMAKE_CURRENT_SOURCE_DIR}/linker.ld\"")
 
+if(WIN32)
+# Windows cl.exe does not support the -Wextra, -Wno-unused and -Werror flags.
+set(CMAKE_C_FLAGS "-Wall ${CMAKE_C_FLAGS}")
+else()
 set(CMAKE_C_FLAGS "-Wall -Wextra -Wno-unused -Werror ${CMAKE_C_FLAGS}")
+endif()
 
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 # Build Options