corrected

#include <curl/types.h>

#include <curl/easy.h>

size_t  write_data(void *ptr, size_t size, size_t nmemb, FILE *stream)

size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)

{

  written = fwrite(ptr,size,nmemb,outfile);

  written = fwrite(ptr, size, nmemb, (FILE *)stream);

  return written;

}