Compilation fixes

lut.c

@@ -1,6 +1,6 @@
 #include <avr/pgmspace.h>
 
-unsigned char correction_lut[256] PROGMEM = {
+const unsigned char correction_lut[256] PROGMEM = {
 0x00 , 0x00 , 0x00 , 0x01 , 0x01 , 0x02 , 0x03 , 0x03 , 0x04 , 0x05 , 0x05 , 0x06 , 0x07 , 0x07 , 0x08 , 0x09 , 
 0x0a , 0x0a , 0x0b , 0x0c , 0x0d , 0x0d , 0x0e , 0x0f , 0x10 , 0x11 , 0x12 , 0x12 , 0x13 , 0x14 , 0x15 , 0x16 , 
 0x17 , 0x18 , 0x18 , 0x19 , 0x1a , 0x1b , 0x1c , 0x1d , 0x1e , 0x1f , 0x20 , 0x21 , 0x21 , 0x22 , 0x23 , 0x24 , 

lut.h

@@ -3,6 +3,6 @@
 
 #include <avr/pgmspace.h>
 
-extern unsigned char correction_lut[] PROGMEM;
+extern const unsigned char correction_lut[] PROGMEM;
 
 #endif

n64_isr.S

@@ -1,7 +1,7 @@
 ;
 ;	n64_to_wii: AVR Microcontroller firmware for converting N64 controller
 ;	          protocol to Nintendo Wii/Gamecube controller protocol.
-;    Copyright (C) 2007-2008  Raphael Assenat <[email protected]>
+;    Copyright (C) 2007-2015  Raphael Assenat <[email protected]>
 ;
 ;    This program is free software; you can redistribute it and/or modify
 ;    it under the terms of the GNU General Public License as published by
@@ -17,7 +17,9 @@
 ;    with this program; if not, write to the Free Software Foundation, Inc.,
 ;    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 ;
-;	------------------------------------------------------------------------   
+;	------------------------------------------------------------------------
+;
+; 2015-02-07: Updated interrupt name for compilation with recent avr-libc
 ;
 
 #include <avr/io.h>
@@ -44,7 +46,7 @@
 .lcomm n64_use_buf1 1;
 
 .text
-.global SIG_INTERRUPT0
+.global INT0_vect
 .global n64_rx_buf
 .global n64_tx_buf0
 .global n64_tx_buf1
@@ -111,7 +113,7 @@
 
 
 
-SIG_INTERRUPT0:
+INT0_vect:
 	push r1	
 	in r1, IO_SREG
 	push zl