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enable additional warnings
shut those warnings up :-)
try to make stdio thread-safe

#include <dietstdio.h>

size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream) {
  size_t tmp;
  pthread_mutex_lock(&stream->m);
  tmp=fread_unlocked(ptr,size,nmemb,stream);
  pthread_mutex_unlock(&stream->m);
  return tmp;
}