Checking patch assert/__libc_assert_fail.c...
Checking patch assert/assert-perr.c...
Checking patch assert/assert.c...
Checking patch assert/test-assert-2.c...
Checking patch include/stdio.h...
error: while searching for:
libc_hidden_proto (__fortify_fail)

/* The maximum number of varargs allowed in a __libc_message format string */
#define LIBC_MESSAGE_MAX_ARGS 4

_Noreturn void __libc_message_impl (const char *__fnt, ...) attribute_hidden
     __attribute__ ((__format__ (__printf__, 1, 2)));

#define __libc_message0(fmt) \
   __libc_message_impl (fmt)
#define __libc_message1(fmt, a1) \
   __libc_message_impl (fmt, a1)
#define __libc_message2(fmt, a1, a2) \
   __libc_message_impl (fmt, a1, a2)
#define __libc_message3(fmt, a1, a2, a3) \
   __libc_message_impl (fmt, a1, a2, a3)
#define __libc_message4(fmt, a1, a2, a3, a4) \
   __libc_message_impl (fmt, a1, a2, a3, a4)

#define __libc_message_concat_x(a,b)  a##b
#define __libc_message_concat(a,b)    __libc_message_concat_x (a, b)

#define __libc_message_nargs_x(a0,a1,a2,a3,a4,a5,a6,...) a6
#define __libc_message_nargs(b, ...) \
   __libc_message_nargs_x (__VA_ARGS__,6,5,4,3,2,1,0,)
#define __libc_message_disp(b, ...) \
   __libc_message_concat (b, __libc_message_nargs (__VA_ARGS__))(__VA_ARGS__)
#define __libc_message(...) \
   __libc_message_disp (__libc_message, __VA_ARGS__)

/* Acquire ownership of STREAM.  */
extern void __flockfile (FILE *__stream) attribute_hidden;


error: patch failed: include/stdio.h:171
error: include/stdio.h: patch does not apply
Checking patch sysdeps/posix/libc_fatal.c...
Hunk #1 succeeded at 43 (offset -6 lines).
Hunk #2 succeeded at 123 (offset 4 lines).