Fixed compilation for gcc-4.6.2 with avr-lib-1.8.0 (thanks daid)

Marlin/Marlin.h

@@ -14,7 +14,7 @@
 #include <string.h>
 #include <inttypes.h>
 
-#include <avr/delay.h>
+#include <util/delay.h>
 #include <avr/pgmspace.h>
 #include <avr/eeprom.h>
 #include  <avr/wdt.h>
@@ -58,8 +58,8 @@
 // //#define PSTR    (s )        ((const PROGMEM char *)(s))
 // //# define MYPGM(s) (__extension__({static prog_char __c[] = (s); &__c[0];})) 
 // //#define MYPGM(s) ((const prog_char *g PROGMEM=s))
-// //#define MYPGM(s) PSTR(s)
-#define MYPGM(s)  (__extension__({static char __c[] __attribute__((__progmem__)) = (s); &__c[0];}))  //This is the normal behaviour
+#define MYPGM(s) PSTR(s)
+//#define MYPGM(s)  (__extension__({static char __c[] __attribute__((__progmem__)) = (s); &__c[0];}))  //This is the normal behaviour
 //#define MYPGM(s)  (__extension__({static prog_char __c[]  = (s); &__c[0];})) //this does not work but hides the warnings
 
 
@@ -69,8 +69,8 @@
 #define SERIAL_PROTOCOLLNPGM(x) {serialprintPGM(MYPGM(x));SERIAL.write('\n');}
 
 
-const prog_char errormagic[] PROGMEM ="Error:";
-const prog_char echomagic[] PROGMEM ="echo:";
+const char errormagic[] PROGMEM ="Error:";
+const char echomagic[] PROGMEM ="echo:";
 #define SERIAL_ERROR_START serialprintPGM(errormagic);
 #define SERIAL_ERROR(x) SERIAL_PROTOCOL(x)
 #define SERIAL_ERRORPGM(x) SERIAL_PROTOCOLPGM(x)

Marlin/Marlin.pde

@@ -164,7 +164,7 @@ const int sensitive_pins[] = SENSITIVE_PINS; // Sensitive pin list for M42
 //Inactivity shutdown variables
 static unsigned long previous_millis_cmd = 0;
 static unsigned long max_inactive_time = 0;
-static unsigned long stepper_inactive_time = DEFAULT_STEPPER_DEACTIVE_TIME*1000;
+static unsigned long stepper_inactive_time = DEFAULT_STEPPER_DEACTIVE_TIME*1000l;
 static unsigned long last_stepperdisabled_time=30*1000; //first release check after 30 seconds
 
 static unsigned long starttime=0;

Marlin/speed_lookuptable.h

@@ -3,7 +3,7 @@
 
 #include "Marlin.h"
 
-uint16_t speed_lookuptable_fast[256][2] PROGMEM = {\
+const uint16_t speed_lookuptable_fast[256][2] PROGMEM = {\
 { 62500, 55556}, { 6944, 3268}, { 3676, 1176}, { 2500, 607}, { 1893, 369}, { 1524, 249}, { 1275, 179}, { 1096, 135}, 
 { 961, 105}, { 856, 85}, { 771, 69}, { 702, 58}, { 644, 49}, { 595, 42}, { 553, 37}, { 516, 32}, 
 { 484, 28}, { 456, 25}, { 431, 23}, { 408, 20}, { 388, 19}, { 369, 16}, { 353, 16}, { 337, 14}, 
@@ -38,7 +38,7 @@ uint16_t speed_lookuptable_fast[256][2] PROGMEM = {\
 { 31, 0}, { 31, 0}, { 31, 0}, { 31, 1}, { 30, 0}, { 30, 0}, { 30, 0}, { 30, 0}
 };
 
-uint16_t speed_lookuptable_slow[256][2] PROGMEM = {\
+const uint16_t speed_lookuptable_slow[256][2] PROGMEM = {\
 { 62500, 12500}, { 50000, 8334}, { 41666, 5952}, { 35714, 4464}, { 31250, 3473}, { 27777, 2777}, { 25000, 2273}, { 22727, 1894}, 
 { 20833, 1603}, { 19230, 1373}, { 17857, 1191}, { 16666, 1041}, { 15625, 920}, { 14705, 817}, { 13888, 731}, { 13157, 657}, 
 { 12500, 596}, { 11904, 541}, { 11363, 494}, { 10869, 453}, { 10416, 416}, { 10000, 385}, { 9615, 356}, { 9259, 331},