1 files changed, 11 insertions, 1 deletions
diff --git a/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/arch/cc.h b/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/arch/cc.h
index 62d037e80..ecac81e09 100644
--- a/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/arch/cc.h
+++ b/demos/ARM7-AT91SAM7X-LWIP-GCC/lwip/arch/cc.h
@@ -1,5 +1,6 @@
 /*
-    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011 Giovanni Di Sirio.
 
     This file is part of ChibiOS/RT.
 
@@ -70,5 +71,14 @@ typedef uint32_t        mem_ptr_t;
 }
 
 #define BYTE_ORDER LITTLE_ENDIAN
+#define LWIP_PROVIDE_ERRNO
+
+#define PACK_STRUCT_BEGIN
+#ifdef PACK_STRUCT_STRUCT
+#undef PACK_STRUCT_STRUCT
+#endif
+#define PACK_STRUCT_STRUCT __attribute__ ((__packed__))
+#define PACK_STRUCT_END
+#define PACK_STRUCT_FIELD(x) x
 
 #endif /* __CC_H__ */