[Linux-Biella] errore compilazione

[Daniele Vallini]

Sto lavorando sulla decodifica del teletext su DVB-s.
Compilo il programma di estrazione dei dati ed appare un errore nel sorgente.
In C non sono in grado di tirarmi fuori da solo.
Mi dareste una mano?

Questa la parte di sorgente interessata:
*/

#include <stdio.h>
#include <stdlib.h>
#include <pwd.h> 
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h> 
#include "tables.h"


#define VERSION "0.2.1"
#define VTXDIR "/video/vtx"
#define USAGE "\nUSAGE: jpvtx [tpid1 tpid2 tpid3 .. tpid8]\n\
if no arguments pids are read from ~/jpcam_pids\n\n"

// There seems to be a limit of 8 teletext streams - OK for most (but
// not all) transponders.
#define MAX_CHANNELS 9

int debug_flag;


typedef struct mag_struct_ {
   int valid;
   int mag;
   unsigned char flags;
   unsigned char lang;
   int pnum,sub;
   unsigned char pagebuf[25*40];
} mag_struct;


struct passwd *userinfo;
char *home_dir;
char *user_name;


char *strsave(char *s) /*save char array s somewhere*/
{
char *p, *malloc();                    <-- qui viene identificato l'errore

p = malloc( strlen(s) +  1);
if(!p) return 0;

strcpy(p, s);

return(p);
} /* end function strsave */

Questo il log di compilazione:

dan a due:~/DVB/jpvtx-0.2.1$ make
gcc -Wall -o jpvtx jpvtx.c
jpvtx.c: In function ‘strsave’:
jpvtx.c:78: error: conflicting types for ‘malloc’
jpvtx.c:80: warning: implicit declaration of function ‘strlen’
jpvtx.c:80: warning: incompatible implicit declaration of built-in function ‘strlen’
jpvtx.c:83: warning: implicit declaration of function ‘strcpy’
jpvtx.c:83: warning: incompatible implicit declaration of built-in function ‘strcpy’
jpvtx.c: In function ‘set_line’:
jpvtx.c:133: warning: implicit declaration of function ‘memset’
jpvtx.c:133: warning: incompatible implicit declaration of built-in function ‘memset’
jpvtx.c:155: warning: implicit declaration of function ‘memcpy’
jpvtx.c:155: warning: incompatible implicit declaration of built-in function ‘memcpy’
jpvtx.c: In function ‘main’:
jpvtx.c:312: warning: implicit declaration of function ‘strcmp’
make: *** [jpvtx] Error 1
dan a due:~/DVB/jpvtx-0.2.1$ 

Confido in qualche buona anima :-)

-- 
vallini.daniele a bilug.linux.it