From 908f4f46dd26a8514f03a6d34bc6450dd1e2da41 Mon Sep 17 00:00:00 2001
From: Philip Heron <phil@sanslogic.co.uk>
Date: Wed, 30 Jun 2010 22:05:47 +0100
Subject: [PATCH] Make local variables static

---
 rtty.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/rtty.c b/rtty.c
index 4fced29..11b10d5 100644
--- a/rtty.c
+++ b/rtty.c
@@ -24,9 +24,9 @@
 
 #define TXBIT(b) PORTB = (PORTB & ~TXPIN) | ((b) ? TXPIN : 0)
 
-volatile uint8_t  txpgm = 0;
-volatile uint8_t *txbuf = 0;
-volatile uint16_t txlen = 0;
+volatile static uint8_t  txpgm = 0;
+volatile static uint8_t *txbuf = 0;
+volatile static uint16_t txlen = 0;
 
 ISR(TIMER0_COMPA_vect)
 {