From e5e22212e0fb1253882cf2be9b39428315c18d82 Mon Sep 17 00:00:00 2001
From: Steve Wills <steve@mouf.net>
Date: Fri, 24 Sep 2021 22:12:12 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Add=20'static'=20to=20fix=20'dup?=
 =?UTF-8?q?licates'=20(#28)?=
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---
 src/clib/u8g_com_arduino_sw_spi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/clib/u8g_com_arduino_sw_spi.c b/src/clib/u8g_com_arduino_sw_spi.c
index 4bebcd7..719daee 100755
--- a/src/clib/u8g_com_arduino_sw_spi.c
+++ b/src/clib/u8g_com_arduino_sw_spi.c
@@ -59,10 +59,10 @@
 
 #ifdef __AVR__
 
-uint8_t u8g_bitData, u8g_bitNotData;
-uint8_t u8g_bitClock, u8g_bitNotClock;
-volatile uint8_t *u8g_outData;
-volatile uint8_t *u8g_outClock;
+static uint8_t u8g_bitData, u8g_bitNotData;
+static uint8_t u8g_bitClock, u8g_bitNotClock;
+static volatile uint8_t *u8g_outData;
+static volatile uint8_t *u8g_outClock;
 
 static void u8g_com_arduino_init_shift_out(uint8_t dataPin, uint8_t clockPin)
 {