--- /dev/null
+++ Libc/Libc-1698.140.3/include/sys/cdefs.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2006 - 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/***********************************************************************
+ * Not to be installed in /usr/include
+ ***********************************************************************/
+
+#ifndef _LIBC_SYS_CDEFS_H_
+#define _LIBC_SYS_CDEFS_H_
+
+/*
+ * Now include the real sys/cdefs.h.  The checks in libc-features.h will assure
+ * that those macros are consistent with the current build environment.
+ */
+#include_next <sys/cdefs.h>
+#ifndef _LIBC_NO_FEATURE_VERIFICATION
+#if defined(__arm64__) || defined(__arm__) || defined(__i386__) || defined(__x86_64__)
+#  include "libc-features.h"
+#else
+#  error "Unknown architecture."
+#endif
+#endif /* _LIBC_NO_FEATURE_VERIFICATION */
+
+/*
+ * symbol suffixes used for symbol versioning
+ */
+#if defined(VARIANT_LEGACY)
+#  define LIBC_SUF_UNIX03		/* nothing */
+#  define LIBC_SUF_64_BIT_INO_T		/* nothing */
+#  define LIBC_SUF_NON_CANCELABLE	/* nothing */
+#  define LIBC_SUF_1050			/* nothing */
+#else /* !VARIANT_LEGACY */
+#  if __DARWIN_ONLY_UNIX_CONFORMANCE
+#    define LIBC_SUF_UNIX03		/* nothing */
+#  else /* !__DARWIN_ONLY_UNIX_CONFORMANCE */
+#    define LIBC_SUF_UNIX03		"$UNIX2003"
+#  endif /* __DARWIN_ONLY_UNIX_CONFORMANCE */
+
+#  if defined(VARIANT_INODE32)
+#    define LIBC_SUF_64_BIT_INO_T	/* nothing */
+#  else /* !VARIANT_INODE32 */
+#    if __DARWIN_ONLY_64_BIT_INO_T
+#      define LIBC_SUF_64_BIT_INO_T	/* nothing */
+#    else /* !__DARWIN_ONLY_64_BIT_INO_T */
+#      define LIBC_SUF_64_BIT_INO_T	"$INODE64"
+#    endif /* __DARWIN_ONLY_64_BIT_INO_T */
+#  endif /* VARIANT_INODE32 */
+
+#  if defined(VARIANT_CANCELABLE)
+#    define LIBC_SUF_NON_CANCELABLE	/* nothing */
+#  else /* !LIBC_NON_CANCELABLE */
+#    define LIBC_SUF_NON_CANCELABLE	"$NOCANCEL"
+#  endif /* LIBC_NON_CANCELABLE */
+
+#  if defined(VARIANT_PRE1050)
+#    define LIBC_SUF_1050		/* nothing */
+#  else /* !VARIANT_PRE1050 */
+#    if __DARWIN_ONLY_VERS_1050
+#      define LIBC_SUF_1050		/* nothing */
+#    else /* !__DARWIN_ONLY_VERS_1050 */
+#      define LIBC_SUF_1050		"$1050"
+#    endif /* __DARWIN_ONLY_VERS_1050 */
+#  endif /* VARIANT_PRE1050 */
+
+#endif /* LIBC_UNIX03 */
+
+#define LIBC_SUF_EXTSN			"$DARWIN_EXTSN"
+
+/*
+ * symbol versioning macros
+ */
+#define LIBC_ALIAS(sym)		__asm("_" __STRING(sym) LIBC_SUF_UNIX03)
+#define LIBC_ALIAS_C(sym)	__asm("_" __STRING(sym) LIBC_SUF_NON_CANCELABLE LIBC_SUF_UNIX03)
+#define LIBC_ALIAS_I(sym)	__asm("_" __STRING(sym) LIBC_SUF_64_BIT_INO_T LIBC_SUF_UNIX03)
+#define LIBC_INODE64(sym)	__asm("_" __STRING(sym) LIBC_SUF_64_BIT_INO_T)
+
+#define LIBC_1050(sym)		__asm("_" __STRING(sym) LIBC_SUF_1050)
+#define LIBC_1050ALIAS(sym)	__asm("_" __STRING(sym) LIBC_SUF_1050 LIBC_SUF_UNIX03)
+#define LIBC_1050ALIAS_C(sym)	__asm("_" __STRING(sym) LIBC_SUF_1050 LIBC_SUF_NON_CANCELABLE LIBC_SUF_UNIX03)
+#define LIBC_1050ALIAS_I(sym)	__asm("_" __STRING(sym) LIBC_SUF_1050 LIBC_SUF_64_BIT_INO_T LIBC_SUF_UNIX03)
+#define LIBC_1050INODE64(sym)	__asm("_" __STRING(sym) LIBC_SUF_1050 LIBC_SUF_64_BIT_INO_T)
+
+#define LIBC_EXTSN(sym)		__asm("_" __STRING(sym) LIBC_SUF_EXTSN)
+#define LIBC_EXTSN_C(sym)	__asm("_" __STRING(sym) LIBC_SUF_EXTSN LIBC_SUF_NON_CANCELABLE)
+
+extern int pthread_key_init_np(int, void (*)(void *));
+
+// Not needed anymore by this header, but other headers rely on this include being here.
+#include <TargetConditionals.h>
+
+#define	__LIBC_PTHREAD_KEY(x)		(10 + (x))
+
+/*
+ * Libc pthread key assignments
+ */
+#define __LIBC_PTHREAD_KEY_XLOCALE	__LIBC_PTHREAD_KEY(0)
+//#define __LIBC_PTHREAD_KEY_RESERVED_WIN64	__LIBC_PTHREAD_KEY(1)
+#define __LIBC_PTHREAD_KEY_LOCALTIME	__LIBC_PTHREAD_KEY(2)
+#define __LIBC_PTHREAD_KEY_GMTIME	__LIBC_PTHREAD_KEY(3)
+#define __LIBC_PTHREAD_KEY_GDTOA_BIGINT	__LIBC_PTHREAD_KEY(4)
+#define __LIBC_PTHREAD_KEY_PARSEFLOAT	__LIBC_PTHREAD_KEY(5)
+#define __LIBC_PTHREAD_KEY_TTYNAME	__LIBC_PTHREAD_KEY(6)
+
+#endif /* _LIBC_SYS_CDEFS_H_ */