attempt to fix Windows build error with #include onnx.proto3.pb.h

Author: stephanecharette

CM_source.cmake

@@ -150,10 +150,9 @@ INCLUDE_DIRECTORIES (src-cli)
 INCLUDE_DIRECTORIES (src-lib)
 INCLUDE_DIRECTORIES (src-other)
 
-IF (DARKNET_TRY_ONNX)
-	IF (Protobuf_FOUND)
-		ADD_SUBDIRECTORY (src-onnx)
-	ENDIF ()
+IF (Protobuf_FOUND)
+	INCLUDE_DIRECTORIES (src-onnx)
+	ADD_SUBDIRECTORY (src-onnx)
 ENDIF ()
 
 ADD_SUBDIRECTORY (doc)

src-lib/darknet.cpp

@@ -1,7 +1,7 @@
 #include "darknet_internal.hpp"
 
 #if DARKNET_HAS_PROTOBUF
-#include "../src-onnx/onnx.proto3.pb.h"
+#include "onnx.proto3.pb.h"
 #endif
 
 #ifdef WIN32