From 93d8443d6af71a3dcfd741cd185bdc94344cfcf6 Mon Sep 17 00:00:00 2001
From: flo <florian.mosnier@laposte.net>
Date: Sun, 26 Feb 2017 14:47:57 +0100
Subject: [PATCH] delete definition

---
 src/main.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/main.c b/src/main.c
index 1105f02..4b071bb 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,10 +6,6 @@
 
 //#define PI 3.141592653584
 
-extern char* wave_signal; // simple waveform*
-extern unsigned short duration; // equivalent as 2000 ms duration sound
-extern unsigned int freq;
-
 int main(void)
 {
     unsigned int key = 0;