» error: redeclaration of ‚raw’ with no linkage

#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
struct termios orig_termios;
void disableRawMode() {
tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
}
void enableRawMode() {
tcgetattr(STDIN_FILENO, &orig_termios);
atexit(disableRawMode);
struct termios raw = orig_termios;
raw.c_lflag &= ~(ECHO);
tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);

int main() {
enableRawMode();
char c;
while (read(STDIN_FILENO, &c, 1) == 1 && c != 'q');
return 0;
}

cc kilo.c -o kilo

error: redeclaration of ‚raw‘ with no linkage
struct termios raw = orig_termios;

#ifndef GETCH_H_INCLUDED
#define GETCH_H_INCLUDED

#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h> //for new version of kbhit
//#include <sys/time.h> old version

/// reads from keypress, doesn't echo
int getch(){
    struct termios oldt, newt;
    int ch;
    tcgetattr( STDIN_FILENO, &oldt );
    newt = oldt;
    newt.c_lflag &= ~( ICANON | ECHO );
    tcsetattr( STDIN_FILENO, TCSANOW, &newt );
    ch = getchar();
    tcsetattr( STDIN_FILENO, TCSANOW, &oldt );
    return ch;
}

void clpuf(void)
 {
 while (getc(stdin) != '\n')
    ;
 }

   /// reads from keypress, echoes
int getche(void)
    {
    struct termios oldattr, newattr;
    int ch;
    tcgetattr( STDIN_FILENO, &oldattr );
    newattr = oldattr;
    newattr.c_lflag &= ~( ICANON );
    tcsetattr( STDIN_FILENO, TCSANOW, &newattr );
    ch = getchar();
    tcsetattr( STDIN_FILENO, TCSANOW, &oldattr );
    return ch;
    }
/*old: 

// braucht Bestätigung mit Enter-Taste
long kbhit(void)
{
struct timeval tv;
fd_set read_fd;

tv.tv_sec=0;
tv.tv_usec=0;
FD_ZERO(&read_fd);
FD_SET(0,&read_fd);

if(select(1, &read_fd, NULL, NULL, &tv) == -1)
return 0;

if(FD_ISSET(0,&read_fd))
 return 1;

return 0;
} 
*/

// braucht keine Bestätigung mit Enter-Taste
int kbhit(void)
{
  struct termios oldt, newt;
  int ch;
  int oldf;
 
  tcgetattr(STDIN_FILENO, &oldt);
  newt = oldt;
  newt.c_lflag &= ~(ICANON | ECHO);
  tcsetattr(STDIN_FILENO, TCSANOW, &newt);
  oldf = fcntl(STDIN_FILENO, F_GETFL, 0);
  fcntl(STDIN_FILENO, F_SETFL, oldf | O_NONBLOCK);
 
  ch = getchar();
 
  tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
  fcntl(STDIN_FILENO, F_SETFL, oldf);
 
  if(ch != EOF)
  {
    ungetc(ch, stdin);
    return ch;  // Normalerweise 1, aber besser ch, so hat man gleich den ASCII-Wert;
  }
 
  return 0;
}
#endif // GETCH_H_INCLUDED

#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>

int kbhit(void)
{
  struct termios oldt, newt;
  int ch;
  int oldf;
 
  tcgetattr(STDIN_FILENO, &oldt);
  newt = oldt;
  newt.c_lflag &= ~(ICANON | ECHO);
  tcsetattr(STDIN_FILENO, TCSANOW, &newt);
  oldf = fcntl(STDIN_FILENO, F_GETFL, 0);
  fcntl(STDIN_FILENO, F_SETFL, oldf | O_NONBLOCK);
 
  ch = getchar();
 
  tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
  fcntl(STDIN_FILENO, F_SETFL, oldf);
 
  if(ch != EOF)
  {
    //ungetc(ch, stdin);
    return ch;
  }
 
  return 0;
}
 
void clpuf(void)
 {
 while (getc(stdin) != '\n')
    ;
 } 
 

int main(void)
{
  int letter= 0;

while((letter = kbhit()) != 32)
  {
   //if (letter != 0) clpuf();
    printf("Press a key: %d\n", letter);
   }
   printf("You pressed '%c'= %ddez\n", letter,letter);
 
 return 0;
}

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