Errore usando time.h

sto avendo un errore continuo quando provo compilare questo programma

code: [select]

#include <timealarms.h>
#include <wire.h>
#include <ds1307rtc.h>

#include <lcd5110_graph.h>
#include <time.h>
 
int pintemp = 0;
lcd5110 myglcd(3, 4, 5, 7, 6);
extern unsigned char mediumnumbers[];
extern unsigned char bignumbers[];
extern unsigned char smallfont[];
extern unsigned char tinyfont[];
extern uint8_t internet [];

int contrast = 60;
int inv = 0;
void setup()
{

  serial.begin(9600);

  myglcd.initlcd(contrast);
}

void loop()
{

 
  int colon = analogread(pintemp);
  float voltage = colon * 5;
  voltage /= 1024.0;
  int temp = (voltage - 0.5) * 100;

  int horas = hour();
 
  myglcd.setfont(smallfont);
  myglcd.update();
  myglcd.printnumi(temp, 38, 5);
  myglcd.drawcircle( 52,5,2);
  myglcd.drawbitmap( 69,30, internet,15,15);
  myglcd.print("temp =", 0,5);
  myglcd.printnumi(horas,center,38);
  myglcd.update();

  myglcd.update();
  delay(1000);
  myglcd.clrscr();
  delay(1000);




}

questo e il codice di errore

code: [select]


in file included c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:10:0:
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:18:18: error: variable 'monthstr1' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr1[] progmem = "january";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:19:18: error: variable 'monthstr2' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr2[] progmem = "february";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:20:18: error: variable 'monthstr3' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr3[] progmem = "march";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:21:18: error: variable 'monthstr4' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr4[] progmem = "april";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:22:18: error: variable 'monthstr5' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr5[] progmem = "may";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:23:18: error: variable 'monthstr6' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr6[] progmem = "june";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:24:18: error: variable 'monthstr7' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr7[] progmem = "july";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:25:18: error: variable 'monthstr8' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr8[] progmem = "august";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:26:18: error: variable 'monthstr9' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr9[] progmem = "september";
                  ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:27:19: error: variable 'monthstr10' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr10[] progmem = "october";
                   ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:28:19: error: variable 'monthstr11' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr11[] progmem = "november";
                   ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:29:19: error: variable 'monthstr12' must const in order put read-only section means of '__attribute__((progmem))'
 char monthstr12[] progmem = "december";
                   ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:31:22: error: variable 'monthnames_p' must const in order put read-only section means of '__attribute__((progmem))'
 pgm_p monthnames_p[] progmem =
                      ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:37:26: error: variable 'monthshortnames_p' must const in order put read-only section means of '__attribute__((progmem))'
 char monthshortnames_p[] progmem = "errjanfebmaraprmayjunjulaugsepoctnovdec";
                          ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:39:16: error: variable 'daystr0' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr0[] progmem = "err";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:40:16: error: variable 'daystr1' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr1[] progmem = "sunday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:41:16: error: variable 'daystr2' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr2[] progmem = "monday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:42:16: error: variable 'daystr3' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr3[] progmem = "tuesday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:43:16: error: variable 'daystr4' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr4[] progmem = "wednesday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:44:16: error: variable 'daystr5' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr5[] progmem = "thursday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:45:16: error: variable 'daystr6' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr6[] progmem = "friday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:46:16: error: variable 'daystr7' must const in order put read-only section means of '__attribute__((progmem))'
 char daystr7[] progmem = "saturday";
                ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:48:20: error: variable 'daynames_p' must const in order put read-only section means of '__attribute__((progmem))'
 pgm_p daynames_p[] progmem = { daystr0,daystr1,daystr2,daystr3,daystr4,daystr5,daystr6,daystr7};
                    ^
c:\users\massimiiano pc study\documents\arduino\libraries\time\datestrings.cpp:49:24: error: variable 'dayshortnames_p' must const in order put read-only section means of '__attribute__((progmem))'
 char dayshortnames_p[] progmem = "errsunmontuewedthrfrisat";
                        ^
error compiling.

mi piacerebbe capire dove sta il problema comunque sia con time.h voglio ottenere l'ora del computer per poi inviarla al mio arduino uno che precessore la informazione e la invierà al mio nokia 5110 lcd

grazie de attenzione.
     

potresti intanto descrivere che os, che modello di arduino e la versione dell ide, che stai usando.

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