--- Libc/Libc-825.26/include/stdlib.h
+++ Libc/Libc-1082.50.1/include/stdlib.h
@@ -68,31 +68,16 @@
 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 #endif /* !_ANSI_SOURCE */
 
-#ifndef	_SIZE_T
-#define	_SIZE_T
 /* DO NOT REMOVE THIS COMMENT: fixincludes needs to see:
  * _GCC_SIZE_T */
-typedef	__darwin_size_t		size_t;
-#endif
+#include <sys/_types/_size_t.h>
 
 #if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
-#ifndef _CT_RUNE_T
-#define _CT_RUNE_T
-typedef	__darwin_ct_rune_t	ct_rune_t;
-#endif
-
-#ifndef _RUNE_T
-#define _RUNE_T
-typedef __darwin_rune_t   	rune_t;
-#endif
+#include <sys/_types/_ct_rune_t.h>
+#include <sys/_types/_rune_t.h>
 #endif	/* !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 
-#ifndef	__cplusplus
-#ifndef	_WCHAR_T
-#define	_WCHAR_T
-typedef	__darwin_wchar_t	wchar_t;
-#endif	/* _WCHAR_T */
-#endif	/* __cplusplus */
+#include <sys/_types/_wchar_t.h>
 
 typedef struct {
 	int quot;		/* quotient */
@@ -111,9 +96,7 @@
 } lldiv_t;
 #endif /* !__DARWIN_NO_LONG_LONG */
 
-#ifndef NULL
-#define NULL __DARWIN_NULL
-#endif /* ! NULL */
+#include <sys/_types/_null.h>
 
 #define	EXIT_FAILURE	1
 #define	EXIT_SUCCESS	0
@@ -141,16 +124,13 @@
 #define	MB_CUR_MAX_L(x)	(___mb_cur_max_l(x))
 #endif
 //Begin-Libc
+#include "libc_private.h"
 /* f must be a literal string */
 #define LIBC_ABORT(f,...)	abort_report_np("%s:%s:%u: " f, __FILE__, __func__, __LINE__, ## __VA_ARGS__)
 //End-Libc
 
 __BEGIN_DECLS
 void	 abort(void) __dead2;
-//Begin-Libc
-__private_extern__
-void	 abort_report_np(const char *, ...) __dead2 __printflike(1, 2);
-//End-Libc
 int	 abs(int) __pure2;
 int	 atexit(void (*)(void));
 double	 atof(const char *);
@@ -202,7 +182,7 @@
 //Begin-Libc
 #ifndef LIBC_ALIAS_SYSTEM
 //End-Libc
-int	 system(const char *) __DARWIN_ALIAS_C(system);
+int	 system(const char *) __DARWIN_ALIAS_C(system) __OSX_AVAILABLE_BUT_DEPRECATED_MSG(__MAC_10_0,__MAC_NA,__IPHONE_2_0,__IPHONE_8_0, "Use posix_spawn APIs instead.") __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
 //Begin-Libc
 #else /* LIBC_ALIAS_SYSTEM */
 int	 system(const char *) LIBC_ALIAS_C(system);
@@ -318,18 +298,10 @@
 #if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
 #include <machine/types.h>
 
-#ifndef _DEV_T
-typedef	__darwin_dev_t	dev_t;
-#define _DEV_T
-#endif
-
-#ifndef	_MODE_T
-typedef	__darwin_mode_t	mode_t;
-#define _MODE_T
-#endif
-
-u_int32_t
-	 arc4random(void);
+#include <sys/_types/_dev_t.h>
+#include <sys/_types/_mode_t.h>
+
+u_int32_t	arc4random(void);
 void	 arc4random_addrandom(unsigned char * /*dat*/, int /*datlen*/);
 void	 arc4random_buf(void * /*buf*/, size_t /*nbytes*/) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
 void	 arc4random_stir(void);
@@ -353,7 +325,7 @@
 int	 cgetstr(char *, const char *, char **);
 int	 cgetustr(char *, const char *, char **);
 
-int	 daemon(int, int) __DARWIN_1050(daemon) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_5, __IPHONE_2_0, __IPHONE_2_0);
+int	 daemon(int, int) __DARWIN_1050(daemon) __OSX_AVAILABLE_BUT_DEPRECATED_MSG(__MAC_10_0, __MAC_10_5, __IPHONE_2_0, __IPHONE_2_0, "Use posix_spawn APIs instead.") __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
 char	*devname(dev_t, mode_t);
 char	*devname_r(dev_t, mode_t, char *buf, int len);
 char	*getbsize(int *, long *);