From b5ef69daf12844e475918acf7e6a7fbe2ccb30b2 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@mutabah.net>
Date: Sat, 10 May 2014 10:54:30 +0800
Subject: [PATCH] Modules/UDI - Add check for UDI_VERSION to udi.h

---
 KernelLand/Modules/Interfaces/UDI/Makefile |  2 +-
 UDI/include/udi.h                          | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/KernelLand/Modules/Interfaces/UDI/Makefile b/KernelLand/Modules/Interfaces/UDI/Makefile
index 3b1387be..d149bff3 100644
--- a/KernelLand/Modules/Interfaces/UDI/Makefile
+++ b/KernelLand/Modules/Interfaces/UDI/Makefile
@@ -1,7 +1,7 @@
 #
 #
 
-CPPFLAGS = -I../../../../UDI/include -Iinclude
+CPPFLAGS = -I../../../../UDI/include -Iinclude -D UDI_VERSION=0x101
 
 # - UDI Library Files
 LIB_OBJS := core/logging.o core/strmem.o core/imc.o core/mem.o core/buf.o
diff --git a/UDI/include/udi.h b/UDI/include/udi.h
index 50c7077a..76dac7ba 100644
--- a/UDI/include/udi.h
+++ b/UDI/include/udi.h
@@ -4,6 +4,16 @@
 #ifndef _UDI_H_
 #define _UDI_H_
 
+#ifndef UDI_VERSION
+# error "Please define UDI_VERSION before including"
+#endif
+#if UDI_VERSION < 0x100
+# error "Requesting an unsupported UDI version (pre 1.0)"
+#endif
+#if UDI_VERSION > 0x101
+# error "Requesting an unsupported UDI version (post 1.01)"
+#endif
+
 #include <stdint.h>
 #include <stdarg.h>
 
-- 
2.20.1