/tmp/tmppoo_959t/undef.c:30:1: warning: ‘gets’ is deprecated [-Wdeprecated-declarations]
   30 | void *__glibc_test_gets = (void *) &gets;
      | ^~~~
In file included from ../include/stdio.h:14,
                 from /tmp/tmppoo_959t/undef.c:1:
../libio/stdio.h:667:14: note: declared here
  667 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
[initial] __posix_getopt -> [libc.a(getopt.o)] memset -> [libc.a(memset.o)] __memset_sse2 -> [libc.a(memset-sse2.o)] __x86_data_cache_size -> [libc.a(libc-start.o)] __libc_setup_tls -> [libc.a(libc-tls.o)] getauxval