что то с моими руками не так ...

swiftdev@pgdb1:~$ gcc -lpthread dirtyc0w.c
dirtyc0w.c: In function ‘procselfmemThread’:
dirtyc0w.c:64:5: warning: implicit declaration of function  lseek’ [-Wimplicit-function-declaration]
     lseek(f,map,SEEK_SET);
     ^
dirtyc0w.c:65:8: warning: implicit declaration of function  write’ [-Wimplicit-function-declaration]
     c+=write(f,str,strlen(str));
        ^
dirtyc0w.c: In function ‘main’:
dirtyc0w.c:82:3: warning: implicit declaration of function  fstat’ [-Wimplicit-function-declaration]
   fstat(f,&st);
   ^
dirtyc0w.c:96:10: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘void *’ [-Wformat=]
   printf("mmap %x\n\n",map);
          ^
/tmp/ccFdI7nc.o: In function `main':
dirtyc0w.c:(.text+0x1a4): undefined reference to `pthread_create'
dirtyc0w.c:(.text+0x1c0): undefined reference to `pthread_create'
dirtyc0w.c:(.text+0x1d1): undefined reference to `pthread_join'
dirtyc0w.c:(.text+0x1e2): undefined reference to `pthread_join'
collect2: error: ld returned 1 exit status