From 197583be9b069a6e8f05fd9916179aa950fd0417 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Wed, 2 Jan 2013 14:45:00 +1100
Subject: [PATCH] build: force signed char

this was the default with the AVR compiler anyway, but this makes it
clearer what we assume
---
 mk/Arduino.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mk/Arduino.mk b/mk/Arduino.mk
index 0b2950eabe..b7140567c8 100644
--- a/mk/Arduino.mk
+++ b/mk/Arduino.mk
@@ -263,8 +263,8 @@ WARNFLAGS      +=   -Wwrite-strings -Wformat=2
 WARNFLAGSCXX    =   -Wno-reorder
 DEPFLAGS        =   -MD -MT $@
 
-CXXOPTS         =   -ffunction-sections -fdata-sections -fno-exceptions
-COPTS           =   -ffunction-sections -fdata-sections
+CXXOPTS         =   -ffunction-sections -fdata-sections -fno-exceptions -fsigned-char
+COPTS           =   -ffunction-sections -fdata-sections -fsigned-char
 
 ASOPTS          =   -x assembler-with-cpp 
 LISTOPTS        =   -adhlns=$(@:.o=.lst)