From 94cd14e90de2545423b7793826884b84e30124e3 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon>
Date: Tue, 17 Jun 2008 20:27:31 +0000
Subject: [PATCH] patch #6459: Made err_t overridable to use a more efficient
 type (define LWIP_ERR_T in cc.h)

---
 CHANGELOG              | 4 ++++
 src/include/lwip/err.h | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG
index 3c587366..0b0dd39a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -19,6 +19,10 @@ HISTORY
 
   ++ New features:
 
+  2008-06-17 Simon Goldschmidt
+  * err.h: patch #6459: Made err_t overridable to use a more efficient type
+    (define LWIP_ERR_T in cc.h)
+
   2008-06-17 Simon Goldschmidt
   * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
     to loopif
diff --git a/src/include/lwip/err.h b/src/include/lwip/err.h
index 1d6383e7..69676445 100644
--- a/src/include/lwip/err.h
+++ b/src/include/lwip/err.h
@@ -33,12 +33,19 @@
 #define __LWIP_ERR_H__
 
 #include "lwip/opt.h"
+#include "lwip/arch.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-typedef s8_t err_t;
+/** Define LWIP_ERR_T in cc.h if you want to use
+ *  a different type for your platform (must be signed). */
+#ifdef LWIP_ERR_T
+typedef LWIP_ERR_T err_t;
+#else /* LWIP_ERR_T */
+ typedef s8_t err_t;
+#endif /* LWIP_ERR_T*/
 
 /* Definitions for error constants. */