add platformspecific sources because windows requires an extra object file

Makefile

@@ -19,10 +19,12 @@ ifeq ($(OS), Windows_NT)
 	cp cdeps/wolfMQTT/src/libwolfmqtt_la-mqtt_packet.o src/Clean\ System\ Files/libwolfmqtt_la-mqtt_packet.$(SUFFIX)
 	cp cdeps/wolfMQTT/src/libwolfmqtt_la-mqtt_socket.o src/Clean\ System\ Files/libwolfmqtt_la-mqtt_socket.$(SUFFIX)
 	cp cdeps/_chkstk_ms.obj src/Clean\ System\ Files/
+	cp src-win/* src/
 else
 	cp cdeps/wolfMQTT/src/.libs/libwolfmqtt_la-mqtt_client.o src/Clean\ System\ Files/libwolfmqtt_la-mqtt_client.$(SUFFIX)
 	cp cdeps/wolfMQTT/src/.libs/libwolfmqtt_la-mqtt_packet.o src/Clean\ System\ Files/libwolfmqtt_la-mqtt_packet.$(SUFFIX)
 	cp cdeps/wolfMQTT/src/.libs/libwolfmqtt_la-mqtt_socket.o src/Clean\ System\ Files/libwolfmqtt_la-mqtt_socket.$(SUFFIX)
+	cp src-posix/* src/
 endif
 
 buildDemo:

demo/Makefile

@@ -3,12 +3,19 @@ CLEAN_HOME?=/opt/clean
 .SECONDARY: MQTTClient.prj
 .PHONY: clean
 
+ifeq ($(OS), Windows_NT)
+SRC:=win
+else
+SRC:=posix
+endif
+
 all: MQTTClient
 
 %.prj: %.icl
 	cpm project $* create $(CLEAN_HOME)/etc/iTasks.prt
 	cpm project $@ root ..
 	cpm project $@ path add ../src
+	cpm project $@ path add ../src-$(SRC)
 
 %: %.prj
 	cpm project $^ build
@@ -16,4 +23,4 @@ all: MQTTClient
 clean:
 		rm -rf Clean\ System\ Files
 		rm -rf MQTTClient-www
-		rm -f MQTTClient *.bc *.pbc *.prj
\ No newline at end of file
+		rm -f MQTTClient *.bc *.pbc *.prj

src-posix/_MQTT.dcl

+definition module _MQTT

src-posix/_MQTT.icl

+implementation module _MQTT

src-win/_MQTT.dcl

+definition module _MQTT

src-win/_MQTT.icl

+implementation module _MQTT
+
+import code from library "_chkstk_ms."

src/MQTT/Client.icl

@@ -6,6 +6,8 @@ import code from "libwolfmqtt_la-mqtt_client."
 import code from "libwolfmqtt_la-mqtt_packet."
 import code from "libwolfmqtt_la-mqtt_socket."
 
+import _MQTT
+
 import qualified Data.Map as DM
 import Data.Functor
 import Data.Func