1#include <stdlib.h>
2
3static int
4do_test (void)
5{
6 clearenv ();
7 unsetenv (name: "FOO");
8 return 0;
9}
10
11#define TEST_FUNCTION do_test ()
12#include "../test-skeleton.c"
13

source code of glibc/stdlib/tst-unsetenv1.c