ubuntu-buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/dlfcn/bug-atexit2-lib.c

#include <stdio.h>
#include <stdlib.h>

void
fx (void)
{
  puts ("At exit fx");
}

void
foo (void)
{
  atexit (fx);
}