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/usr/include/x86_64-linux-gnu/gnu/stubs-64.h is in libc6-dev 2.23-0ubuntu10.

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/* This file is automatically generated.
   It defines a symbol `__stub_FUNCTION' for each function
   in the C library which is a stub, meaning it will fail
   every time called, usually setting errno to ENOSYS.  */

#ifdef _LIBC
# error Applications may not define the macro _LIBC
#endif

#define __stub___compat_bdflush
#define __stub_chflags
#define __stub_fattach
#define __stub_fchflags
#define __stub_fdetach
#define __stub_getmsg
#define __stub_gtty
#define __stub_lchmod
#define __stub_putmsg
#define __stub_revoke
#define __stub_setlogin
#define __stub_sigreturn
#define __stub_sstk
#define __stub_stty