diff --git a/cdefs.h b/cdefs.h
deleted file mode 100644
index 7b8ed5b..0000000
--- a/cdefs.h
+++ /dev/null
@@ -1,707 +0,0 @@
-/* Copyright (C) 1992-2022 Free Software Foundation, Inc.
-   Copyright The GNU Toolchain Authors.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef	_SYS_CDEFS_H
-#define	_SYS_CDEFS_H	1
-
-/* We are almost always included from features.h. */
-#ifndef _FEATURES_H
-# include <features.h>
-#endif
-
-/* The GNU libc does not support any K&R compilers or the traditional mode
-   of ISO C compilers anymore.  Check for some of the combinations not
-   supported anymore.  */
-#if defined __GNUC__ && !defined __STDC__
-# error "You need a ISO C conforming compiler to use the glibc headers"
-#endif
-
-/* Some user header file might have defined this before.  */
-#undef	__P
-#undef	__PMT
-
-/* Compilers that lack __has_attribute may object to
-       #if defined __has_attribute && __has_attribute (...)
-   even though they do not need to evaluate the right-hand side of the &&.
-   Similarly for __has_builtin, etc.  */
-#if (defined __has_attribute \
-     && (!defined __clang_minor__ \
-         || (defined __apple_build_version__ \
-             ? 6000000 <= __apple_build_version__ \
-             : 3 < __clang_major__ + (5 <= __clang_minor__))))
-# define __glibc_has_attribute(attr) __has_attribute (attr)
-#else
-# define __glibc_has_attribute(attr) 0
-#endif
-#ifdef __has_builtin
-# define __glibc_has_builtin(name) __has_builtin (name)
-#else
-# define __glibc_has_builtin(name) 0
-#endif
-#ifdef __has_extension
-# define __glibc_has_extension(ext) __has_extension (ext)
-#else
-# define __glibc_has_extension(ext) 0
-#endif
-
-#if defined __GNUC__ || defined __clang__
-
-/* All functions, except those with callbacks or those that
-   synchronize memory, are leaf functions.  */
-# if __GNUC_PREREQ (4, 6) && !defined _LIBC
-#  define __LEAF , __leaf__
-#  define __LEAF_ATTR __attribute__ ((__leaf__))
-# else
-#  define __LEAF
-#  define __LEAF_ATTR
-# endif
-
-/* GCC can always grok prototypes.  For C++ programs we add throw()
-   to help it optimize the function calls.  But this only works with
-   gcc 2.8.x and egcs.  For gcc 3.4 and up we even mark C functions
-   as non-throwing using a function attribute since programs can use
-   the -fexceptions options for C code as well.  */
-# if !defined __cplusplus \
-     && (__GNUC_PREREQ (3, 4) || __glibc_has_attribute (__nothrow__))
-#  define __THROW	__attribute__ ((__nothrow__ __LEAF))
-#  define __THROWNL	__attribute__ ((__nothrow__))
-#  define __NTH(fct)	__attribute__ ((__nothrow__ __LEAF)) fct
-#  define __NTHNL(fct)  __attribute__ ((__nothrow__)) fct
-# else
-#  if defined __cplusplus && (__GNUC_PREREQ (2,8) || __clang_major >= 4)
-#   if __cplusplus >= 201103L
-#    define __THROW	noexcept (true)
-#   else
-#    define __THROW	throw ()
-#   endif
-#   define __THROWNL	__THROW
-#   define __NTH(fct)	__LEAF_ATTR fct __THROW
-#   define __NTHNL(fct) fct __THROW
-#  else
-#   define __THROW
-#   define __THROWNL
-#   define __NTH(fct)	fct
-#   define __NTHNL(fct) fct
-#  endif
-# endif
-
-#else	/* Not GCC or clang.  */
-
-# if (defined __cplusplus						\
-      || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L))
-#  define __inline	inline
-# else
-#  define __inline		/* No inline functions.  */
-# endif
-
-# define __THROW
-# define __THROWNL
-# define __NTH(fct)	fct
-
-#endif	/* GCC || clang.  */
-
-/* These two macros are not used in glibc anymore.  They are kept here
-   only because some other projects expect the macros to be defined.  */
-#define __P(args)	args
-#define __PMT(args)	args
-
-/* For these things, GCC behaves the ANSI way normally,
-   and the non-ANSI way under -traditional.  */
-
-#define __CONCAT(x,y)	x ## y
-#define __STRING(x)	#x
-
-/* This is not a typedef so `const __ptr_t' does the right thing.  */
-#define __ptr_t void *
-
-
-/* C++ needs to know that types and declarations are C, not C++.  */
-#ifdef	__cplusplus
-# define __BEGIN_DECLS	extern "C" {
-# define __END_DECLS	}
-#else
-# define __BEGIN_DECLS
-# define __END_DECLS
-#endif
-
-
-/* Fortify support.  */
-#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
-#define __bos0(ptr) __builtin_object_size (ptr, 0)
-
-/* Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available.  */
-#if __USE_FORTIFY_LEVEL == 3 && (__glibc_clang_prereq (9, 0)		      \
-				 || __GNUC_PREREQ (12, 0))
-# define __glibc_objsize0(__o) __builtin_dynamic_object_size (__o, 0)
-# define __glibc_objsize(__o) __builtin_dynamic_object_size (__o, 1)
-#else
-# define __glibc_objsize0(__o) __bos0 (__o)
-# define __glibc_objsize(__o) __bos (__o)
-#endif
-
-/* Compile time conditions to choose between the regular, _chk and _chk_warn
-   variants.  These conditions should get evaluated to constant and optimized
-   away.  */
-
-#define __glibc_safe_len_cond(__l, __s, __osz) ((__l) <= (__osz) / (__s))
-#define __glibc_unsigned_or_positive(__l) \
-  ((__typeof (__l)) 0 < (__typeof (__l)) -1				      \
-   || (__builtin_constant_p (__l) && (__l) > 0))
-
-/* Length is known to be safe at compile time if the __L * __S <= __OBJSZ
-   condition can be folded to a constant and if it is true, or unknown (-1) */
-#define __glibc_safe_or_unknown_len(__l, __s, __osz) \
-  ((__osz) == (__SIZE_TYPE__) -1					      \
-   || (__glibc_unsigned_or_positive (__l)				      \
-       && __builtin_constant_p (__glibc_safe_len_cond ((__SIZE_TYPE__) (__l), \
-						       (__s), (__osz)))	      \
-       && __glibc_safe_len_cond ((__SIZE_TYPE__) (__l), (__s), (__osz))))
-
-/* Conversely, we know at compile time that the length is unsafe if the
-   __L * __S <= __OBJSZ condition can be folded to a constant and if it is
-   false.  */
-#define __glibc_unsafe_len(__l, __s, __osz) \
-  (__glibc_unsigned_or_positive (__l)					      \
-   && __builtin_constant_p (__glibc_safe_len_cond ((__SIZE_TYPE__) (__l),     \
-						   __s, __osz))		      \
-   && !__glibc_safe_len_cond ((__SIZE_TYPE__) (__l), __s, __osz))
-
-/* Fortify function f.  __f_alias, __f_chk and __f_chk_warn must be
-   declared.  */
-
-#define __glibc_fortify(f, __l, __s, __osz, ...) \
-  (__glibc_safe_or_unknown_len (__l, __s, __osz)			      \
-   ? __ ## f ## _alias (__VA_ARGS__)					      \
-   : (__glibc_unsafe_len (__l, __s, __osz)				      \
-      ? __ ## f ## _chk_warn (__VA_ARGS__, __osz)			      \
-      : __ ## f ## _chk (__VA_ARGS__, __osz)))			      \
-
-/* Fortify function f, where object size argument passed to f is the number of
-   elements and not total size.  */
-
-#define __glibc_fortify_n(f, __l, __s, __osz, ...) \
-  (__glibc_safe_or_unknown_len (__l, __s, __osz)			      \
-   ? __ ## f ## _alias (__VA_ARGS__)					      \
-   : (__glibc_unsafe_len (__l, __s, __osz)				      \
-      ? __ ## f ## _chk_warn (__VA_ARGS__, (__osz) / (__s))		      \
-      : __ ## f ## _chk (__VA_ARGS__, (__osz) / (__s))))		      \
-
-#if __GNUC_PREREQ (4,3)
-# define __warnattr(msg) __attribute__((__warning__ (msg)))
-# define __errordecl(name, msg) \
-  extern void name (void) __attribute__((__error__ (msg)))
-#else
-# define __warnattr(msg)
-# define __errordecl(name, msg) extern void name (void)
-#endif
-
-/* Support for flexible arrays.
-   Headers that should use flexible arrays only if they're "real"
-   (e.g. only if they won't affect sizeof()) should test
-   #if __glibc_c99_flexarr_available.  */
-#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L && !defined __HP_cc
-# define __flexarr	[]
-# define __glibc_c99_flexarr_available 1
-#elif __GNUC_PREREQ (2,97) || defined __clang__
-/* GCC 2.97 and clang support C99 flexible array members as an extension,
-   even when in C89 mode or compiling C++ (any version).  */
-# define __flexarr	[]
-# define __glibc_c99_flexarr_available 1
-#elif defined __GNUC__
-/* Pre-2.97 GCC did not support C99 flexible arrays but did have
-   an equivalent extension with slightly different notation.  */
-# define __flexarr	[0]
-# define __glibc_c99_flexarr_available 1
-#else
-/* Some other non-C99 compiler.  Approximate with [1].  */
-# define __flexarr	[1]
-# define __glibc_c99_flexarr_available 0
-#endif
-
-
-/* __asm__ ("xyz") is used throughout the headers to rename functions
-   at the assembly language level.  This is wrapped by the __REDIRECT
-   macro, in order to support compilers that can do this some other
-   way.  When compilers don't support asm-names at all, we have to do
-   preprocessor tricks instead (which don't have exactly the right
-   semantics, but it's the best we can do).
-
-   Example:
-   int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid); */
-
-#if (defined __GNUC__ && __GNUC__ >= 2) || (__clang_major__ >= 4)
-
-# define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias))
-# ifdef __cplusplus
-#  define __REDIRECT_NTH(name, proto, alias) \
-     name proto __THROW __asm__ (__ASMNAME (#alias))
-#  define __REDIRECT_NTHNL(name, proto, alias) \
-     name proto __THROWNL __asm__ (__ASMNAME (#alias))
-# else
-#  define __REDIRECT_NTH(name, proto, alias) \
-     name proto __asm__ (__ASMNAME (#alias)) __THROW
-#  define __REDIRECT_NTHNL(name, proto, alias) \
-     name proto __asm__ (__ASMNAME (#alias)) __THROWNL
-# endif
-# define __ASMNAME(cname)  __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
-# define __ASMNAME2(prefix, cname) __STRING (prefix) cname
-
-/*
-#elif __SOME_OTHER_COMPILER__
-
-# define __REDIRECT(name, proto, alias) name proto; \
-	_Pragma("let " #name " = " #alias)
-*/
-#endif
-
-/* GCC and clang have various useful declarations that can be made with
-   the '__attribute__' syntax.  All of the ways we use this do fine if
-   they are omitted for compilers that don't understand it.  */
-#if !(defined __GNUC__ || defined __clang__)
-# define __attribute__(xyz)	/* Ignore */
-#endif
-
-/* At some point during the gcc 2.96 development the `malloc' attribute
-   for functions was introduced.  We don't want to use it unconditionally
-   (although this would be possible) since it generates warnings.  */
-#if __GNUC_PREREQ (2,96) || __glibc_has_attribute (__malloc__)
-# define __attribute_malloc__ __attribute__ ((__malloc__))
-#else
-# define __attribute_malloc__ /* Ignore */
-#endif
-
-/* Tell the compiler which arguments to an allocation function
-   indicate the size of the allocation.  */
-#if __GNUC_PREREQ (4, 3)
-# define __attribute_alloc_size__(params) \
-  __attribute__ ((__alloc_size__ params))
-#else
-# define __attribute_alloc_size__(params) /* Ignore.  */
-#endif
-
-/* Tell the compiler which argument to an allocation function
-   indicates the alignment of the allocation.  */
-#if __GNUC_PREREQ (4, 9) || __glibc_has_attribute (__alloc_align__)
-# define __attribute_alloc_align__(param) \
-  __attribute__ ((__alloc_align__ param))
-#else
-# define __attribute_alloc_align__(param) /* Ignore.  */
-#endif
-
-/* At some point during the gcc 2.96 development the `pure' attribute
-   for functions was introduced.  We don't want to use it unconditionally
-   (although this would be possible) since it generates warnings.  */
-#if __GNUC_PREREQ (2,96) || __glibc_has_attribute (__pure__)
-# define __attribute_pure__ __attribute__ ((__pure__))
-#else
-# define __attribute_pure__ /* Ignore */
-#endif
-
-/* This declaration tells the compiler that the value is constant.  */
-#if __GNUC_PREREQ (2,5) || __glibc_has_attribute (__const__)
-# define __attribute_const__ __attribute__ ((__const__))
-#else
-# define __attribute_const__ /* Ignore */
-#endif
-
-#if __GNUC_PREREQ (2,7) || __glibc_has_attribute (__unused__)
-# define __attribute_maybe_unused__ __attribute__ ((__unused__))
-#else
-# define __attribute_maybe_unused__ /* Ignore */
-#endif
-
-/* At some point during the gcc 3.1 development the `used' attribute
-   for functions was introduced.  We don't want to use it unconditionally
-   (although this would be possible) since it generates warnings.  */
-#if __GNUC_PREREQ (3,1) || __glibc_has_attribute (__used__)
-# define __attribute_used__ __attribute__ ((__used__))
-# define __attribute_noinline__ __attribute__ ((__noinline__))
-#else
-# define __attribute_used__ __attribute__ ((__unused__))
-# define __attribute_noinline__ /* Ignore */
-#endif
-
-/* Since version 3.2, gcc allows marking deprecated functions.  */
-#if __GNUC_PREREQ (3,2) || __glibc_has_attribute (__deprecated__)
-# define __attribute_deprecated__ __attribute__ ((__deprecated__))
-#else
-# define __attribute_deprecated__ /* Ignore */
-#endif
-
-/* Since version 4.5, gcc also allows one to specify the message printed
-   when a deprecated function is used.  clang claims to be gcc 4.2, but
-   may also support this feature.  */
-#if __GNUC_PREREQ (4,5) \
-    || __glibc_has_extension (__attribute_deprecated_with_message__)
-# define __attribute_deprecated_msg__(msg) \
-	 __attribute__ ((__deprecated__ (msg)))
-#else
-# define __attribute_deprecated_msg__(msg) __attribute_deprecated__
-#endif
-
-/* At some point during the gcc 2.8 development the `format_arg' attribute
-   for functions was introduced.  We don't want to use it unconditionally
-   (although this would be possible) since it generates warnings.
-   If several `format_arg' attributes are given for the same function, in
-   gcc-3.0 and older, all but the last one are ignored.  In newer gccs,
-   all designated arguments are considered.  */
-#if __GNUC_PREREQ (2,8) || __glibc_has_attribute (__format_arg__)
-# define __attribute_format_arg__(x) __attribute__ ((__format_arg__ (x)))
-#else
-# define __attribute_format_arg__(x) /* Ignore */
-#endif
-
-/* At some point during the gcc 2.97 development the `strfmon' format
-   attribute for functions was introduced.  We don't want to use it
-   unconditionally (although this would be possible) since it
-   generates warnings.  */
-#if __GNUC_PREREQ (2,97) || __glibc_has_attribute (__format__)
-# define __attribute_format_strfmon__(a,b) \
-  __attribute__ ((__format__ (__strfmon__, a, b)))
-#else
-# define __attribute_format_strfmon__(a,b) /* Ignore */
-#endif
-
-/* The nonnull function attribute marks pointer parameters that
-   must not be NULL.  This has the name __nonnull in glibc,
-   and __attribute_nonnull__ in files shared with Gnulib to avoid
-   collision with a different __nonnull in DragonFlyBSD 5.9.  */
-#ifndef __attribute_nonnull__
-# if __GNUC_PREREQ (3,3) || __glibc_has_attribute (__nonnull__)
-#  define __attribute_nonnull__(params) __attribute__ ((__nonnull__ params))
-# else
-#  define __attribute_nonnull__(params)
-# endif
-#endif
-#ifndef __nonnull
-# define __nonnull(params) __attribute_nonnull__ (params)
-#endif
-
-/* The returns_nonnull function attribute marks the return type of the function
-   as always being non-null.  */
-#ifndef __returns_nonnull
-# if __GNUC_PREREQ (4, 9) || __glibc_has_attribute (__returns_nonnull__)
-# define __returns_nonnull __attribute__ ((__returns_nonnull__))
-# else
-# define __returns_nonnull
-# endif
-#endif
-
-/* If fortification mode, we warn about unused results of certain
-   function calls which can lead to problems.  */
-#if __GNUC_PREREQ (3,4) || __glibc_has_attribute (__warn_unused_result__)
-# define __attribute_warn_unused_result__ \
-   __attribute__ ((__warn_unused_result__))
-# if defined __USE_FORTIFY_LEVEL && __USE_FORTIFY_LEVEL > 0
-#  define __wur __attribute_warn_unused_result__
-# endif
-#else
-# define __attribute_warn_unused_result__ /* empty */
-#endif
-#ifndef __wur
-# define __wur /* Ignore */
-#endif
-
-/* Forces a function to be always inlined.  */
-#if __GNUC_PREREQ (3,2) || __glibc_has_attribute (__always_inline__)
-/* The Linux kernel defines __always_inline in stddef.h (283d7573), and
-   it conflicts with this definition.  Therefore undefine it first to
-   allow either header to be included first.  */
-# undef __always_inline
-# define __always_inline __inline __attribute__ ((__always_inline__))
-#else
-# undef __always_inline
-# define __always_inline __inline
-#endif
-
-/* Associate error messages with the source location of the call site rather
-   than with the source location inside the function.  */
-#if __GNUC_PREREQ (4,3) || __glibc_has_attribute (__artificial__)
-# define __attribute_artificial__ __attribute__ ((__artificial__))
-#else
-# define __attribute_artificial__ /* Ignore */
-#endif
-
-/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
-   inline semantics, unless -fgnu89-inline is used.  Using __GNUC_STDC_INLINE__
-   or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
-   older than 4.3 may define these macros and still not guarantee GNU inlining
-   semantics.
-
-   clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-   semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
-   __GNUC_GNU_INLINE__ macro definitions.  */
-#if (!defined __cplusplus || __GNUC_PREREQ (4,3) \
-     || (defined __clang__ && (defined __GNUC_STDC_INLINE__ \
-			       || defined __GNUC_GNU_INLINE__)))
-# if defined __GNUC_STDC_INLINE__ || defined __cplusplus
-#  define __extern_inline extern __inline __attribute__ ((__gnu_inline__))
-#  define __extern_always_inline \
-  extern __always_inline __attribute__ ((__gnu_inline__))
-# else
-#  define __extern_inline extern __inline
-#  define __extern_always_inline extern __always_inline
-# endif
-#endif
-
-#ifdef __extern_always_inline
-# define __fortify_function __extern_always_inline __attribute_artificial__
-#endif
-
-/* GCC 4.3 and above allow passing all anonymous arguments of an
-   __extern_always_inline function to some other vararg function.  */
-#if __GNUC_PREREQ (4,3)
-# define __va_arg_pack() __builtin_va_arg_pack ()
-# define __va_arg_pack_len() __builtin_va_arg_pack_len ()
-#endif
-
-/* It is possible to compile containing GCC extensions even if GCC is
-   run in pedantic mode if the uses are carefully marked using the
-   `__extension__' keyword.  But this is not generally available before
-   version 2.8.  */
-#if !(__GNUC_PREREQ (2,8) || defined __clang__)
-# define __extension__		/* Ignore */
-#endif
-
-/* __restrict is known in EGCS 1.2 and above, and in clang.
-   It works also in C++ mode (outside of arrays), but only when spelled
-   as '__restrict', not 'restrict'.  */
-#if !(__GNUC_PREREQ (2,92) || __clang_major__ >= 3)
-# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
-#  define __restrict	restrict
-# else
-#  define __restrict	/* Ignore */
-# endif
-#endif
-
-/* ISO C99 also allows to declare arrays as non-overlapping.  The syntax is
-     array_name[restrict]
-   GCC 3.1 and clang support this.
-   This syntax is not usable in C++ mode.  */
-#if (__GNUC_PREREQ (3,1) || __clang_major__ >= 3) && !defined __cplusplus
-# define __restrict_arr	__restrict
-#else
-# ifdef __GNUC__
-#  define __restrict_arr	/* Not supported in old GCC.  */
-# else
-#  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
-#   define __restrict_arr	restrict
-#  else
-/* Some other non-C99 compiler.  */
-#   define __restrict_arr	/* Not supported.  */
-#  endif
-# endif
-#endif
-
-#if (__GNUC__ >= 3) || __glibc_has_builtin (__builtin_expect)
-# define __glibc_unlikely(cond)	__builtin_expect ((cond), 0)
-# define __glibc_likely(cond)	__builtin_expect ((cond), 1)
-#else
-# define __glibc_unlikely(cond)	(cond)
-# define __glibc_likely(cond)	(cond)
-#endif
-
-#if (!defined _Noreturn \
-     && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \
-     &&  !(__GNUC_PREREQ (4,7) \
-           || (3 < __clang_major__ + (5 <= __clang_minor__))))
-# if __GNUC_PREREQ (2,8)
-#  define _Noreturn __attribute__ ((__noreturn__))
-# else
-#  define _Noreturn
-# endif
-#endif
-
-#if __GNUC_PREREQ (8, 0)
-/* Describes a char array whose address can safely be passed as the first
-   argument to strncpy and strncat, as the char array is not necessarily
-   a NUL-terminated string.  */
-# define __attribute_nonstring__ __attribute__ ((__nonstring__))
-#else
-# define __attribute_nonstring__
-#endif
-
-/* Undefine (also defined in libc-symbols.h).  */
-#undef __attribute_copy__
-#if __GNUC_PREREQ (9, 0)
-/* Copies attributes from the declaration or type referenced by
-   the argument.  */
-# define __attribute_copy__(arg) __attribute__ ((__copy__ (arg)))
-#else
-# define __attribute_copy__(arg)
-#endif
-
-#if (!defined _Static_assert && !defined __cplusplus \
-     && (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) < 201112 \
-     && (!(__GNUC_PREREQ (4, 6) || __clang_major__ >= 4) \
-         || defined __STRICT_ANSI__))
-# define _Static_assert(expr, diagnostic) \
-    extern int (*__Static_assert_function (void)) \
-      [!!sizeof (struct { int __error_if_negative: (expr) ? 2 : -1; })]
-#endif
-
-/* Gnulib avoids including these, as they don't work on non-glibc or
-   older glibc platforms.  */
-#ifndef __GNULIB_CDEFS
-# include <bits/wordsize.h>
-# include <bits/long-double.h>
-#endif
-
-#if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
-# ifdef __REDIRECT
-
-/* Alias name defined automatically.  */
-#  define __LDBL_REDIR(name, proto) ... unused__ldbl_redir
-#  define __LDBL_REDIR_DECL(name) \
-  extern __typeof (name) name __asm (__ASMNAME ("__" #name "ieee128"));
-
-/* Alias name defined automatically, with leading underscores.  */
-#  define __LDBL_REDIR2_DECL(name) \
-  extern __typeof (__##name) __##name \
-    __asm (__ASMNAME ("__" #name "ieee128"));
-
-/* Alias name defined manually.  */
-#  define __LDBL_REDIR1(name, proto, alias) ... unused__ldbl_redir1
-#  define __LDBL_REDIR1_DECL(name, alias) \
-  extern __typeof (name) name __asm (__ASMNAME (#alias));
-
-#  define __LDBL_REDIR1_NTH(name, proto, alias) \
-  __REDIRECT_NTH (name, proto, alias)
-#  define __REDIRECT_NTH_LDBL(name, proto, alias) \
-  __LDBL_REDIR1_NTH (name, proto, __##alias##ieee128)
-
-/* Unused.  */
-#  define __REDIRECT_LDBL(name, proto, alias) ... unused__redirect_ldbl
-#  define __LDBL_REDIR_NTH(name, proto) ... unused__ldbl_redir_nth
-
-# else
-_Static_assert (0, "IEEE 128-bits long double requires redirection on this platform");
-# endif
-#elif defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
-# define __LDBL_COMPAT 1
-# ifdef __REDIRECT
-#  define __LDBL_REDIR1(name, proto, alias) __REDIRECT (name, proto, alias)
-#  define __LDBL_REDIR(name, proto) \
-  __LDBL_REDIR1 (name, proto, __nldbl_##name)
-#  define __LDBL_REDIR1_NTH(name, proto, alias) __REDIRECT_NTH (name, proto, alias)
-#  define __LDBL_REDIR_NTH(name, proto) \
-  __LDBL_REDIR1_NTH (name, proto, __nldbl_##name)
-#  define __LDBL_REDIR2_DECL(name) \
-  extern __typeof (__##name) __##name __asm (__ASMNAME ("__nldbl___" #name));
-#  define __LDBL_REDIR1_DECL(name, alias) \
-  extern __typeof (name) name __asm (__ASMNAME (#alias));
-#  define __LDBL_REDIR_DECL(name) \
-  extern __typeof (name) name __asm (__ASMNAME ("__nldbl_" #name));
-#  define __REDIRECT_LDBL(name, proto, alias) \
-  __LDBL_REDIR1 (name, proto, __nldbl_##alias)
-#  define __REDIRECT_NTH_LDBL(name, proto, alias) \
-  __LDBL_REDIR1_NTH (name, proto, __nldbl_##alias)
-# endif
-#endif
-#if (!defined __LDBL_COMPAT && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0) \
-    || !defined __REDIRECT
-# define __LDBL_REDIR1(name, proto, alias) name proto
-# define __LDBL_REDIR(name, proto) name proto
-# define __LDBL_REDIR1_NTH(name, proto, alias) name proto __THROW
-# define __LDBL_REDIR_NTH(name, proto) name proto __THROW
-# define __LDBL_REDIR2_DECL(name)
-# define __LDBL_REDIR_DECL(name)
-# ifdef __REDIRECT
-#  define __REDIRECT_LDBL(name, proto, alias) __REDIRECT (name, proto, alias)
-#  define __REDIRECT_NTH_LDBL(name, proto, alias) \
-  __REDIRECT_NTH (name, proto, alias)
-# endif
-#endif
-
-/* __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
-   intended for use in preprocessor macros.
-
-   Note: MESSAGE must be a _single_ string; concatenation of string
-   literals is not supported.  */
-#if __GNUC_PREREQ (4,8) || __glibc_clang_prereq (3,5)
-# define __glibc_macro_warning1(message) _Pragma (#message)
-# define __glibc_macro_warning(message) \
-  __glibc_macro_warning1 (GCC warning message)
-#else
-# define __glibc_macro_warning(msg)
-#endif
-
-/* Generic selection (ISO C11) is a C-only feature, available in GCC
-   since version 4.9.  Previous versions do not provide generic
-   selection, even though they might set __STDC_VERSION__ to 201112L,
-   when in -std=c11 mode.  Thus, we must check for !defined __GNUC__
-   when testing __STDC_VERSION__ for generic selection support.
-   On the other hand, Clang also defines __GNUC__, so a clang-specific
-   check is required to enable the use of generic selection.  */
-#if !defined __cplusplus \
-    && (__GNUC_PREREQ (4, 9) \
-	|| __glibc_has_extension (c_generic_selections) \
-	|| (!defined __GNUC__ && defined __STDC_VERSION__ \
-	    && __STDC_VERSION__ >= 201112L))
-# define __HAVE_GENERIC_SELECTION 1
-#else
-# define __HAVE_GENERIC_SELECTION 0
-#endif
-
-#if __GNUC_PREREQ (10, 0)
-/* Designates a 1-based positional argument ref-index of pointer type
-   that can be used to access size-index elements of the pointed-to
-   array according to access mode, or at least one element when
-   size-index is not provided:
-     access (access-mode, <ref-index> [, <size-index>])  */
-#  define __attr_access(x) __attribute__ ((__access__ x))
-/* For _FORTIFY_SOURCE == 3 we use __builtin_dynamic_object_size, which may
-   use the access attribute to get object sizes from function definition
-   arguments, so we can't use them on functions we fortify.  Drop the object
-   size hints for such functions.  */
-#  if __USE_FORTIFY_LEVEL == 3
-#    define __fortified_attr_access(a, o, s) __attribute__ ((__access__ (a, o)))
-#  else
-#    define __fortified_attr_access(a, o, s) __attr_access ((a, o, s))
-#  endif
-#  if __GNUC_PREREQ (11, 0)
-#    define __attr_access_none(argno) __attribute__ ((__access__ (__none__, argno)))
-#  else
-#    define __attr_access_none(argno)
-#  endif
-#else
-#  define __fortified_attr_access(a, o, s)
-#  define __attr_access(x)
-#  define __attr_access_none(argno)
-#endif
-
-#if __GNUC_PREREQ (11, 0)
-/* Designates dealloc as a function to call to deallocate objects
-   allocated by the declared function.  */
-# define __attr_dealloc(dealloc, argno) \
-    __attribute__ ((__malloc__ (dealloc, argno)))
-# define __attr_dealloc_free __attr_dealloc (__builtin_free, 1)
-#else
-# define __attr_dealloc(dealloc, argno)
-# define __attr_dealloc_free
-#endif
-
-/* Specify that a function such as setjmp or vfork may return
-   twice.  */
-#if __GNUC_PREREQ (4, 1)
-# define __attribute_returns_twice__ __attribute__ ((__returns_twice__))
-#else
-# define __attribute_returns_twice__ /* Ignore.  */
-#endif
-
-#endif	 /* sys/cdefs.h */
diff --git a/emacs.spec b/emacs.spec
index 2a29f99..8b4a95e 100644
--- a/emacs.spec
+++ b/emacs.spec
@@ -12,7 +12,6 @@ Source0:       https://ftp.gnu.org/gnu/emacs/emacs-%{version}.tar.xz
 Source1:       https://ftp.gnu.org/gnu/emacs/emacs-%{version}.tar.xz.sig
 # Stefan Kangas' key
 Source2:       https://keys.openpgp.org/vks/v1/by-fingerprint/CEA1DE21AB108493CC9C65742E82323B8F4353EE
-Source3:       https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;f=lib/cdefs.h;hb=refs/heads/master#./cdefs.h
 Source4:       dotemacs.el
 Source5:       site-start.el
 Source6:       default.el
@@ -213,9 +212,6 @@ Development header files for Emacs.
 %{gpgverify} --keyring='%{SOURCE2}' --signature='%{SOURCE1}' --data='%{SOURCE0}'
 %setup -q
 
-# workaround for ftbfs on ppc64, see https://bugzilla.redhat.com/show_bug.cgi?id=2045780#c8
-cp -p %{SOURCE3} lib/
-
 %patch1 -p1 -b .spellchecker
 %patch2 -p1 -b .system-crypto-policies
 %patch3 -p1 -b .libdir-vs-systemd