vcpkg/ports/wolfmqtt/wolfmqtt_pr305.diff

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d5f0f408..a436f51c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,6 +94,11 @@ target_compile_definitions(wolfmqtt PRIVATE
     "BUILDING_WOLFMQTT"
     )
 
+    # Tell mqtt_types.h we are using a ./configure like output / options.h
+target_compile_definitions(wolfmqtt PRIVATE
+    "BUILDING_CMAKE"
+    )
+
 #TODO generate options file
 configure_file(wolfmqtt/options.h.in wolfmqtt/options.h)
 
diff --git a/wolfmqtt/mqtt_types.h b/wolfmqtt/mqtt_types.h
index f8e8f4d7..f7e33280 100644
--- a/wolfmqtt/mqtt_types.h
+++ b/wolfmqtt/mqtt_types.h
@@ -65,7 +65,8 @@
 #endif
 
 #ifdef ENABLE_MQTT_TLS
-    #if !defined(WOLFSSL_USER_SETTINGS) && !defined(USE_WINDOWS_API)
+    #if !defined(WOLFSSL_USER_SETTINGS) && \
+        (!defined(USE_WINDOWS_API) || defined(BUILDING_CMAKE))
         #include <wolfssl/options.h>
     #endif
     #include <wolfssl/wolfcrypt/settings.h>
diff --git a/wolfmqtt/vs_settings.h b/wolfmqtt/vs_settings.h
index a385c4e0..9d8231a0 100644
--- a/wolfmqtt/vs_settings.h
+++ b/wolfmqtt/vs_settings.h
@@ -4,8 +4,9 @@
 #ifndef _WOLFMQTT_VS_SETTINGS_
 #define _WOLFMQTT_VS_SETTINGS_
 
-/* Don't include this if using autoconf cross-compile */
-#ifndef HAVE_CONFIG_H
+/* Don't include this if using autoconf cross-compile or cmake */
+#if !defined(HAVE_CONFIG_H) && !defined(BUILDING_CMAKE)
+
 
 /* TLS Support */
 #undef  ENABLE_MQTT_TLS
@@ -58,6 +59,7 @@
 #undef  WOLFMQTT_NO_ERROR_STRINGS
 //#define WOLFMQTT_NO_ERROR_STRINGS
 
-#endif /* !HAVE_CONFIG_H */
+
+#endif /* !HAVE_CONFIG_H && !BUILDING_CMAKE */
 
 #endif /* _WOLFMQTT_VS_SETTINGS_ */