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[PATCH v2] Harmonize stdint.h and _default_types.h


v2: Fix INT(8|16|32|64)_C() definitions.

2013-12-03  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* libc/include/machine/_default_types.h: Move extern "C" after
	header includes.  Include <sys/features.h> for
	__GNUC_PREREQ__().
	(__u?int.*_t): Define via GCC provided __U?INT.*_TYPE__ if
	available.
	(__intptr_t): Define.
	(__uintptr_t): Likewise.
	* libc/include/stdint.h: Include <machine/_default_types.h>
	instead of <_ansi.h>.
	(u?int.*_t): Define via __u?int.*_t provided by
	<machine/_default_types.h>.
	(u?int_fast.*_t): Define via GCC provided
	__U?INT_FAST.*_TYPE__ if available.
	(U?INT.*(MIN|MAX)): Define via GCC provided __U?INT.*(MIN|MAX)__
	if available.
	(U?INT.*_C): Define via GCC provided __U?INT.*_C if available.
	* libc/include/sys/cdefs.h: Use <machine/_default_types.h>
	instead of <stdint.h>.
	* libc/sys/rtems/sys/cpuset.h: Likewise.
	* libc/sys/rtems/machine/_types.h: Include <stdint.h> for
	FreeBSD compatibility.
---
 newlib/libc/include/machine/_default_types.h |  136 ++++++++++----
 newlib/libc/include/stdint.h                 |  252 ++++++++++++++------------
 newlib/libc/include/sys/cdefs.h              |    8 +-
 newlib/libc/sys/rtems/machine/_types.h       |    1 +
 newlib/libc/sys/rtems/sys/cpuset.h           |    4 +-
 5 files changed, 245 insertions(+), 156 deletions(-)

diff --git a/newlib/libc/include/machine/_default_types.h b/newlib/libc/include/machine/_default_types.h
index 362e079..2bd5f64 100644
--- a/newlib/libc/include/machine/_default_types.h
+++ b/newlib/libc/include/machine/_default_types.h
@@ -5,9 +5,7 @@
 #ifndef _MACHINE__DEFAULT_TYPES_H
 #define _MACHINE__DEFAULT_TYPES_H
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include <sys/features.h>
 
 /*
  * Guess on types by examining *_MIN / *_MAX defines.
@@ -21,13 +19,25 @@ extern "C" {
 #include <limits.h>
 #endif
 
-#if __EXP(SCHAR_MAX) == 0x7f
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __INT8_TYPE__
+typedef __INT8_TYPE__ __int8_t;
+typedef __UINT8_TYPE__ __uint8_t;
+#define ___int8_t_defined 1
+#elif __EXP(SCHAR_MAX) == 0x7f
 typedef signed char __int8_t ;
 typedef unsigned char __uint8_t ;
 #define ___int8_t_defined 1
 #endif
 
-#if __EXP(INT_MAX) == 0x7fff
+#ifdef __INT16_TYPE__
+typedef __INT16_TYPE__ __int16_t;
+typedef __UINT16_TYPE__ __uint16_t;
+#define ___int16_t_defined 1
+#elif __EXP(INT_MAX) == 0x7fff
 typedef signed int __int16_t;
 typedef unsigned int __uint16_t;
 #define ___int16_t_defined 1
@@ -41,19 +51,11 @@ typedef unsigned char __uint16_t;
 #define ___int16_t_defined 1
 #endif
 
-#if ___int16_t_defined
-typedef __int16_t __int_least16_t;
-typedef __uint16_t __uint_least16_t;
-#define ___int_least16_t_defined 1
-
-#if !___int8_t_defined
-typedef __int16_t __int_least8_t;
-typedef __uint16_t __uint_least8_t;
-#define ___int_least8_t_defined 1
-#endif
-#endif
-
-#if __EXP(INT_MAX) == 0x7fffffffL
+#ifdef __INT32_TYPE__
+typedef __INT32_TYPE__ __int32_t;
+typedef __UINT32_TYPE__ __uint32_t;
+#define ___int32_t_defined 1
+#elif __EXP(INT_MAX) == 0x7fffffffL
 typedef signed int __int32_t;
 typedef unsigned int __uint32_t;
 #define ___int32_t_defined 1
@@ -71,24 +73,11 @@ typedef unsigned char __uint32_t;
 #define ___int32_t_defined 1
 #endif
 
-#if ___int32_t_defined
-typedef __int32_t __int_least32_t;
-typedef __uint32_t __uint_least32_t;
-#define ___int_least32_t_defined 1
-
-#if !___int8_t_defined
-typedef __int32_t __int_least8_t;
-typedef __uint32_t __uint_least8_t;
-#define ___int_least8_t_defined 1
-#endif
-#if !___int16_t_defined
-typedef __int32_t __int_least16_t;
-typedef __uint32_t __uint_least16_t;
-#define ___int_least16_t_defined 1
-#endif
-#endif
-
-#if __EXP(LONG_MAX) > 0x7fffffff
+#ifdef __INT64_TYPE__
+typedef __INT64_TYPE__ __int64_t;
+typedef __UINT64_TYPE__ __uint64_t;
+#define ___int64_t_defined 1
+#elif __EXP(LONG_MAX) > 0x7fffffff
 typedef signed long __int64_t;
 typedef unsigned long __uint64_t;
 #define ___int64_t_defined 1
@@ -111,6 +100,81 @@ typedef unsigned int __uint64_t;
 #define ___int64_t_defined 1
 #endif
 
+#ifdef __INT_LEAST8_TYPE__
+typedef __INT_LEAST8_TYPE__ __int_least8_t;
+typedef __UINT_LEAST8_TYPE__ __uint_least8_t;
+#define ___int_least8_t_defined 1
+#elif defined(___int8_t_defined)
+typedef __int8_t __int_least8_t;
+typedef __uint8_t __uint_least8_t;
+#define ___int_least8_t_defined 1
+#elif defined(___int16_t_defined)
+typedef __int16_t __int_least8_t;
+typedef __uint16_t __uint_least8_t;
+#define ___int_least8_t_defined 1
+#elif defined(___int32_t_defined)
+typedef __int32_t __int_least8_t;
+typedef __uint32_t __uint_least8_t;
+#define ___int_least8_t_defined 1
+#elif defined(___int64_t_defined)
+typedef __int64_t __int_least8_t;
+typedef __uint64_t __uint_least8_t;
+#define ___int_least8_t_defined 1
+#endif
+
+#ifdef __INT_LEAST16_TYPE__
+typedef __INT_LEAST16_TYPE__ __int_least16_t;
+typedef __UINT_LEAST16_TYPE__ __uint_least16_t;
+#define ___int_least16_t_defined 1
+#elif defined(___int16_t_defined)
+typedef __int16_t __int_least16_t;
+typedef __uint16_t __uint_least16_t;
+#define ___int_least16_t_defined 1
+#elif defined(___int32_t_defined)
+typedef __int32_t __int_least16_t;
+typedef __uint32_t __uint_least16_t;
+#define ___int_least16_t_defined 1
+#elif defined(___int64_t_defined)
+typedef __int64_t __int_least16_t;
+typedef __uint64_t __uint_least16_t;
+#define ___int_least16_t_defined 1
+#endif
+
+#ifdef __INT_LEAST32_TYPE__
+typedef __INT_LEAST32_TYPE__ __int_least32_t;
+typedef __UINT_LEAST32_TYPE__ __uint_least32_t;
+#define ___int_least32_t_defined 1
+#elif defined(___int32_t_defined)
+typedef __int32_t __int_least32_t;
+typedef __uint32_t __uint_least32_t;
+#define ___int_least32_t_defined 1
+#elif defined(___int64_t_defined)
+typedef __int64_t __int_least32_t;
+typedef __uint64_t __uint_least32_t;
+#define ___int_least32_t_defined 1
+#endif
+
+#ifdef __INT_LEAST64_TYPE__
+typedef __INT_LEAST64_TYPE__ __int_least64_t;
+typedef __UINT_LEAST64_TYPE__ __uint_least64_t;
+#define ___int_least64_t_defined 1
+#elif defined(___int64_t_defined)
+typedef __int64_t __int_least64_t;
+typedef __uint64_t __uint_least64_t;
+#define ___int_least64_t_defined 1
+#endif
+
+#ifdef __INTPTR_TYPE__
+typedef __INTPTR_TYPE__ __intptr_t;
+typedef __UINTPTR_TYPE__ __uintptr_t;
+#elif defined(__PTRDIFF_TYPE__)
+typedef __PTRDIFF_TYPE__ __intptr_t;
+typedef unsigned __PTRDIFF_TYPE__ __uintptr_t;
+#else
+typedef long __intptr_t;
+typedef unsigned long __uintptr_t;
+#endif
+
 #undef __EXP
 
 #ifdef __cplusplus
diff --git a/newlib/libc/include/stdint.h b/newlib/libc/include/stdint.h
index d0374ae..643b969 100644
--- a/newlib/libc/include/stdint.h
+++ b/newlib/libc/include/stdint.h
@@ -9,7 +9,7 @@
 #ifndef _STDINT_H
 #define _STDINT_H
 
-#include <_ansi.h>
+#include <machine/_default_types.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -37,116 +37,52 @@ extern "C" {
 #define __have_long32 1
 #endif
 
-#if __STDINT_EXP(SCHAR_MAX) == 0x7f
-typedef signed char int8_t ;
-typedef unsigned char uint8_t ;
+#ifdef ___int8_t_defined
+typedef __int8_t int8_t ;
+typedef __uint8_t uint8_t ;
 #define __int8_t_defined 1
 #endif
 
-#if __int8_t_defined
-typedef signed char int_least8_t;
-typedef unsigned char uint_least8_t;
+#ifdef ___int_least8_t_defined
+typedef __int_least8_t int_least8_t;
+typedef __uint_least8_t uint_least8_t;
 #define __int_least8_t_defined 1
 #endif
 
-#if __STDINT_EXP(SHRT_MAX) == 0x7fff
-typedef signed short int16_t;
-typedef unsigned short uint16_t;
-#define __int16_t_defined 1
-#elif __STDINT_EXP(INT_MAX) == 0x7fff
-typedef signed int int16_t;
-typedef unsigned int uint16_t;
-#define __int16_t_defined 1
-#elif __STDINT_EXP(SCHAR_MAX) == 0x7fff
-typedef signed char int16_t;
-typedef unsigned char uint16_t;
+#ifdef ___int16_t_defined
+typedef __int16_t int16_t ;
+typedef __uint16_t uint16_t ;
 #define __int16_t_defined 1
 #endif
 
-#if __int16_t_defined
-typedef int16_t   	int_least16_t;
-typedef uint16_t 	uint_least16_t;
+#ifdef ___int_least16_t_defined
+typedef __int_least16_t int_least16_t;
+typedef __uint_least16_t uint_least16_t;
 #define __int_least16_t_defined 1
-
-#if !__int_least8_t_defined
-typedef int16_t	   	int_least8_t;
-typedef uint16_t  	uint_least8_t;
-#define __int_least8_t_defined 1
-#endif
 #endif
 
-#if __have_long32
-typedef signed long int32_t;
-typedef unsigned long uint32_t;
-#define __int32_t_defined 1
-#elif __STDINT_EXP(INT_MAX) == 0x7fffffffL
-typedef signed int int32_t;
-typedef unsigned int uint32_t;
-#define __int32_t_defined 1
-#elif __STDINT_EXP(SHRT_MAX) == 0x7fffffffL
-typedef signed short int32_t;
-typedef unsigned short uint32_t;
-#define __int32_t_defined 1
-#elif __STDINT_EXP(SCHAR_MAX) == 0x7fffffffL
-typedef signed char int32_t;
-typedef unsigned char uint32_t;
+#ifdef ___int32_t_defined
+typedef __int32_t int32_t ;
+typedef __uint32_t uint32_t ;
 #define __int32_t_defined 1
 #endif
 
-#if __int32_t_defined
-typedef int32_t   	int_least32_t;
-typedef uint32_t 	uint_least32_t;
+#ifdef ___int_least32_t_defined
+typedef __int_least32_t int_least32_t;
+typedef __uint_least32_t uint_least32_t;
 #define __int_least32_t_defined 1
-
-#if !__int_least8_t_defined
-typedef int32_t	   	int_least8_t;
-typedef uint32_t  	uint_least8_t;
-#define __int_least8_t_defined 1
-#endif
-
-#if !__int_least16_t_defined
-typedef int32_t	   	int_least16_t;
-typedef uint32_t  	uint_least16_t;
-#define __int_least16_t_defined 1
-#endif
 #endif
 
-#if __have_long64
-typedef signed long int64_t;
-typedef unsigned long uint64_t;
-#define __int64_t_defined 1
-#elif __have_longlong64
-typedef signed long long int64_t;
-typedef unsigned long long uint64_t;
-#define __int64_t_defined 1
-#elif  __STDINT_EXP(INT_MAX) > 0x7fffffff
-typedef signed int int64_t;
-typedef unsigned int uint64_t;
+#ifdef ___int64_t_defined
+typedef __int64_t int64_t ;
+typedef __uint64_t uint64_t ;
 #define __int64_t_defined 1
 #endif
 
-#if __int64_t_defined
-typedef int64_t   	int_least64_t;
-typedef uint64_t 	uint_least64_t;
+#ifdef ___int_least64_t_defined
+typedef __int_least64_t int_least64_t;
+typedef __uint_least64_t uint_least64_t;
 #define __int_least64_t_defined 1
-
-#if !__int_least8_t_defined
-typedef int64_t	   	int_least8_t;
-typedef uint64_t  	uint_least8_t;
-#define __int_least8_t_defined 1
-#endif
-
-#if !__int_least16_t_defined
-typedef int64_t	   	int_least16_t;
-typedef uint64_t  	uint_least16_t;
-#define __int_least16_t_defined 1
-#endif
-
-#if !__int_least32_t_defined
-typedef int64_t	   	int_least32_t;
-typedef uint64_t  	uint_least32_t;
-#define __int_least32_t_defined 1
-#endif
 #endif
 
 /*
@@ -155,25 +91,41 @@ typedef uint64_t  	uint_least32_t;
  * Assume int to be the fastest type for all types with a width 
  * less than __INT_MAX__ rsp. INT_MAX
  */
-#if __STDINT_EXP(INT_MAX) >= 0x7f
+#ifdef __INT_FAST8_TYPE__
+  typedef __INT_FAST8_TYPE__ int_fast8_t;
+  typedef __UINT_FAST8_TYPE__ uint_fast8_t;
+#define __int_fast8_t_defined 1
+#elif __STDINT_EXP(INT_MAX) >= 0x7f
   typedef signed int int_fast8_t;
   typedef unsigned int uint_fast8_t;
 #define __int_fast8_t_defined 1
 #endif
 
-#if __STDINT_EXP(INT_MAX) >= 0x7fff
+#ifdef __INT_FAST16_TYPE__
+  typedef __INT_FAST16_TYPE__ int_fast16_t;
+  typedef __UINT_FAST16_TYPE__ uint_fast16_t;
+#define __int_fast16_t_defined 1
+#elif __STDINT_EXP(INT_MAX) >= 0x7fff
   typedef signed int int_fast16_t;
   typedef unsigned int uint_fast16_t;
 #define __int_fast16_t_defined 1
 #endif
 
-#if __STDINT_EXP(INT_MAX) >= 0x7fffffff
+#ifdef __INT_FAST32_TYPE__
+  typedef __INT_FAST32_TYPE__ int_fast32_t;
+  typedef __UINT_FAST32_TYPE__ uint_fast32_t;
+#define __int_fast32_t_defined 1
+#elif __STDINT_EXP(INT_MAX) >= 0x7fffffff
   typedef signed int int_fast32_t;
   typedef unsigned int uint_fast32_t;
 #define __int_fast32_t_defined 1
 #endif
 
-#if __STDINT_EXP(INT_MAX) > 0x7fffffff
+#ifdef __INT_FAST64_TYPE__
+  typedef __INT_FAST64_TYPE__ int_fast64_t;
+  typedef __UINT_FAST64_TYPE__ uint_fast64_t;
+#define __int_fast64_t_defined 1
+#elif __STDINT_EXP(INT_MAX) > 0x7fffffff
   typedef signed int int_fast64_t;
   typedef unsigned int uint_fast64_t;
 #define __int_fast64_t_defined 1
@@ -235,13 +187,14 @@ typedef uint64_t  	uint_least32_t;
   typedef unsigned long uintmax_t;
 #endif
 
-/*
- * GCC doesn't provide an appropriate macro for [u]intptr_t
- * For now, use __PTRDIFF_TYPE__
- */
-#if defined(__PTRDIFF_TYPE__)
-typedef signed __PTRDIFF_TYPE__ intptr_t;
-typedef unsigned __PTRDIFF_TYPE__ uintptr_t;
+typedef __intptr_t intptr_t;
+typedef __uintptr_t uintptr_t;
+
+#ifdef __INTPTR_TYPE__
+#define INTPTR_MIN (-__INTPTR_MAX__ - 1)
+#define INTPTR_MAX __INTPTR_MAX__
+#define UINTPTR_MAX __UINTPTR_MAX__
+#elif defined(__PTRDIFF_TYPE__)
 #define INTPTR_MAX PTRDIFF_MAX
 #define INTPTR_MIN PTRDIFF_MIN
 #ifdef __UINTPTR_MAX__
@@ -254,8 +207,6 @@ typedef unsigned __PTRDIFF_TYPE__ uintptr_t;
  * Fallback to hardcoded values, 
  * should be valid on cpu's with 32bit int/32bit void*
  */
-typedef signed long intptr_t;
-typedef unsigned long uintptr_t;
 #define INTPTR_MAX __STDINT_EXP(LONG_MAX)
 #define INTPTR_MIN (-__STDINT_EXP(LONG_MAX) - 1)
 #define UINTPTR_MAX (__STDINT_EXP(LONG_MAX) * 2UL + 1)
@@ -263,13 +214,21 @@ typedef unsigned long uintptr_t;
 
 /* Limits of Specified-Width Integer Types */
 
-#if __int8_t_defined
+#ifdef __INT8_MAX__
+#define INT8_MIN (-__INT8_MAX__ - 1)
+#define INT8_MAX __INT8_MAX__
+#define UINT8_MAX __UINT8_MAX__
+#elif defined(__int8_t_defined)
 #define INT8_MIN 	-128
 #define INT8_MAX 	 127
 #define UINT8_MAX 	 255
 #endif
 
-#if __int_least8_t_defined
+#ifdef __INT_LEAST8_MAX__
+#define INT_LEAST8_MIN (-__INT_LEAST8_MAX__ - 1)
+#define INT_LEAST8_MAX __INT_LEAST8_MAX__
+#define UINT_LEAST8_MAX __UINT_LEAST8_MAX__
+#elif defined(__int_least8_t_defined)
 #define INT_LEAST8_MIN 	-128
 #define INT_LEAST8_MAX 	 127
 #define UINT_LEAST8_MAX	 255
@@ -277,13 +236,21 @@ typedef unsigned long uintptr_t;
 #error required type int_least8_t missing
 #endif
 
-#if __int16_t_defined
+#ifdef __INT16_MAX__
+#define INT16_MIN (-__INT16_MAX__ - 1)
+#define INT16_MAX __INT16_MAX__
+#define UINT16_MAX __UINT16_MAX__
+#elif defined(__int16_t_defined)
 #define INT16_MIN 	-32768
 #define INT16_MAX 	 32767
 #define UINT16_MAX 	 65535
 #endif
 
-#if __int_least16_t_defined
+#ifdef __INT_LEAST16_MAX__
+#define INT_LEAST16_MIN (-__INT_LEAST16_MAX__ - 1)
+#define INT_LEAST16_MAX __INT_LEAST16_MAX__
+#define UINT_LEAST16_MAX __UINT_LEAST16_MAX__
+#elif defined(__int_least16_t_defined)
 #define INT_LEAST16_MIN	-32768
 #define INT_LEAST16_MAX	 32767
 #define UINT_LEAST16_MAX 65535
@@ -291,7 +258,11 @@ typedef unsigned long uintptr_t;
 #error required type int_least16_t missing
 #endif
 
-#if __int32_t_defined
+#ifdef __INT32_MAX__
+#define INT32_MIN (-__INT32_MAX__ - 1)
+#define INT32_MAX __INT32_MAX__
+#define UINT32_MAX __UINT32_MAX__
+#elif defined(__int32_t_defined)
 #if __have_long32
 #define INT32_MIN 	 (-2147483647L-1)
 #define INT32_MAX 	 2147483647L
@@ -303,7 +274,11 @@ typedef unsigned long uintptr_t;
 #endif
 #endif
 
-#if __int_least32_t_defined
+#ifdef __INT_LEAST32_MAX__
+#define INT_LEAST32_MIN (-__INT_LEAST32_MAX__ - 1)
+#define INT_LEAST32_MAX __INT_LEAST32_MAX__
+#define UINT_LEAST32_MAX __UINT_LEAST32_MAX__
+#elif defined(__int_least32_t_defined)
 #if __have_long32
 #define INT_LEAST32_MIN  (-2147483647L-1)
 #define INT_LEAST32_MAX  2147483647L
@@ -317,7 +292,11 @@ typedef unsigned long uintptr_t;
 #error required type int_least32_t missing
 #endif
 
-#if __int64_t_defined
+#ifdef __INT64_MAX__
+#define INT64_MIN (-__INT64_MAX__ - 1)
+#define INT64_MAX __INT64_MAX__
+#define UINT64_MAX __UINT64_MAX__
+#elif defined(__int64_t_defined)
 #if __have_long64
 #define INT64_MIN 	(-9223372036854775807L-1L)
 #define INT64_MAX 	 9223372036854775807L
@@ -329,7 +308,11 @@ typedef unsigned long uintptr_t;
 #endif
 #endif
 
-#if __int_least64_t_defined
+#ifdef __INT_LEAST64_MAX__
+#define INT_LEAST64_MIN (-__INT_LEAST64_MAX__ - 1)
+#define INT_LEAST64_MAX __INT_LEAST64_MAX__
+#define UINT_LEAST64_MAX __UINT_LEAST64_MAX__
+#elif defined(__int_least64_t_defined)
 #if __have_long64
 #define INT_LEAST64_MIN  (-9223372036854775807L-1L)
 #define INT_LEAST64_MAX  9223372036854775807L
@@ -341,7 +324,11 @@ typedef unsigned long uintptr_t;
 #endif
 #endif
 
-#if __int_fast8_t_defined
+#ifdef __INT_FAST8_MAX__
+#define INT_FAST8_MIN (-__INT_FAST8_MAX__ - 1)
+#define INT_FAST8_MAX __INT_FAST8_MAX__
+#define UINT_FAST8_MAX __UINT_FAST8_MAX__
+#elif defined(__int_fast8_t_defined)
 #if __STDINT_EXP(INT_MAX) >= 0x7f
 #define INT_FAST8_MIN	(-__STDINT_EXP(INT_MAX)-1)
 #define INT_FAST8_MAX	__STDINT_EXP(INT_MAX)
@@ -353,7 +340,11 @@ typedef unsigned long uintptr_t;
 #endif
 #endif
 
-#if __int_fast16_t_defined
+#ifdef __INT_FAST16_MAX__
+#define INT_FAST16_MIN (-__INT_FAST16_MAX__ - 1)
+#define INT_FAST16_MAX __INT_FAST16_MAX__
+#define UINT_FAST16_MAX __UINT_FAST16_MAX__
+#elif defined(__int_fast16_t_defined)
 #if __STDINT_EXP(INT_MAX) >= 0x7fff
 #define INT_FAST16_MIN	(-__STDINT_EXP(INT_MAX)-1)
 #define INT_FAST16_MAX	__STDINT_EXP(INT_MAX)
@@ -365,7 +356,11 @@ typedef unsigned long uintptr_t;
 #endif
 #endif
 
-#if __int_fast32_t_defined
+#ifdef __INT_FAST32_MAX__
+#define INT_FAST32_MIN (-__INT_FAST32_MAX__ - 1)
+#define INT_FAST32_MAX __INT_FAST32_MAX__
+#define UINT_FAST32_MAX __UINT_FAST32_MAX__
+#elif defined(__int_fast32_t_defined)
 #if __STDINT_EXP(INT_MAX) >= 0x7fffffff
 #define INT_FAST32_MIN	(-__STDINT_EXP(INT_MAX)-1)
 #define INT_FAST32_MAX	__STDINT_EXP(INT_MAX)
@@ -377,7 +372,11 @@ typedef unsigned long uintptr_t;
 #endif
 #endif
 
-#if __int_fast64_t_defined
+#ifdef __INT_FAST64_MAX__
+#define INT_FAST64_MIN (-__INT_FAST64_MAX__ - 1)
+#define INT_FAST64_MAX __INT_FAST64_MAX__
+#define UINT_FAST64_MAX __UINT_FAST64_MAX__
+#elif defined(__int_fast64_t_defined)
 #if __STDINT_EXP(INT_MAX) > 0x7fffffff
 #define INT_FAST64_MIN	(-__STDINT_EXP(INT_MAX)-1)
 #define INT_FAST64_MAX	__STDINT_EXP(INT_MAX)
@@ -444,20 +443,34 @@ typedef unsigned long uintptr_t;
 #endif
 
 /** Macros for minimum-width integer constant expressions */
+#ifdef __INT8_C
+#define INT8_C(x) __INT8_C(x)
+#define UINT8_C(x) __UINT8_C(x)
+#else
 #define INT8_C(x)	x
 #if __STDINT_EXP(INT_MAX) > 0x7f
 #define UINT8_C(x)	x
 #else
 #define UINT8_C(x)	x##U
 #endif
+#endif
 
+#ifdef __INT16_C
+#define INT16_C(x) __INT16_C(x)
+#define UINT16_C(x) __UINT16_C(x)
+#else
 #define INT16_C(x)	x
 #if __STDINT_EXP(INT_MAX) > 0x7fff
 #define UINT16_C(x)	x
 #else
 #define UINT16_C(x)	x##U
 #endif
+#endif
 
+#ifdef __INT32_C
+#define INT32_C(x) __INT32_C(x)
+#define UINT32_C(x) __UINT32_C(x)
+#else
 #if __have_long32
 #define INT32_C(x)	x##L
 #define UINT32_C(x)	x##UL
@@ -465,7 +478,12 @@ typedef unsigned long uintptr_t;
 #define INT32_C(x)	x
 #define UINT32_C(x)	x##U
 #endif
+#endif
 
+#ifdef __INT64_C
+#define INT64_C(x) __INT64_C(x)
+#define UINT64_C(x) __UINT64_C(x)
+#else
 #if __int64_t_defined
 #if __have_long64
 #define INT64_C(x)	x##L
@@ -475,8 +493,13 @@ typedef unsigned long uintptr_t;
 #define UINT64_C(x)	x##ULL
 #endif
 #endif
+#endif
 
 /** Macros for greatest-width integer constant expression */
+#ifdef __INTMAX_C
+#define INTMAX_C(x) __INTMAX_C(x)
+#define UINTMAX_C(x) __UINTMAX_C(x)
+#else
 #if __have_long64
 #define INTMAX_C(x)	x##L
 #define UINTMAX_C(x)	x##UL
@@ -484,6 +507,7 @@ typedef unsigned long uintptr_t;
 #define INTMAX_C(x)	x##LL
 #define UINTMAX_C(x)	x##ULL
 #endif
+#endif
 
 
 #ifdef __cplusplus
diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h
index 4a7339c..a5e613c 100644
--- a/newlib/libc/include/sys/cdefs.h
+++ b/newlib/libc/include/sys/cdefs.h
@@ -40,9 +40,9 @@
 #ifndef	_SYS_CDEFS_H_
 #define	_SYS_CDEFS_H_
 
+#include <machine/_default_types.h>
 #include <sys/features.h>
 #include <stddef.h>
-#include <stdint.h>
 
 #define __PMT(args)	args
 #define __DOTS    	, ...
@@ -572,15 +572,15 @@
 #endif
 
 #ifndef	__DECONST
-#define	__DECONST(type, var)	((type)(uintptr_t)(const void *)(var))
+#define	__DECONST(type, var)	((type)(__uintptr_t)(const void *)(var))
 #endif
 
 #ifndef	__DEVOLATILE
-#define	__DEVOLATILE(type, var)	((type)(uintptr_t)(volatile void *)(var))
+#define	__DEVOLATILE(type, var)	((type)(__uintptr_t)(volatile void *)(var))
 #endif
 
 #ifndef	__DEQUALIFY
-#define	__DEQUALIFY(type, var)	((type)(uintptr_t)(const volatile void *)(var))
+#define	__DEQUALIFY(type, var)	((type)(__uintptr_t)(const volatile void *)(var))
 #endif
 
 /*-
diff --git a/newlib/libc/sys/rtems/machine/_types.h b/newlib/libc/sys/rtems/machine/_types.h
index 1711c7a..e8b2bc7 100644
--- a/newlib/libc/sys/rtems/machine/_types.h
+++ b/newlib/libc/sys/rtems/machine/_types.h
@@ -9,6 +9,7 @@
 #define _HAVE_SYSTYPES
 
 #include <machine/_default_types.h>
+#include <stdint.h> /* For FreeBSD compatibility */
 
 typedef __int32_t blksize_t;
 typedef __int32_t blkcnt_t;
diff --git a/newlib/libc/sys/rtems/sys/cpuset.h b/newlib/libc/sys/rtems/sys/cpuset.h
index 763e813..4231f0e 100644
--- a/newlib/libc/sys/rtems/sys/cpuset.h
+++ b/newlib/libc/sys/rtems/sys/cpuset.h
@@ -45,8 +45,8 @@
 #ifndef _SYS_CPUSET_H_
 #define _SYS_CPUSET_H_
 
+#include <machine/_default_types.h>
 #include <stddef.h>
-#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -58,7 +58,7 @@ extern "C" {
 #endif
 
 /* word in the cpu set */
-typedef uint32_t cpu_set_word_t;
+typedef __uint32_t cpu_set_word_t;
 
 /* Number of bits per cpu_set_t element */
 #define _NCPUBITS  (sizeof(cpu_set_word_t) * 8)
-- 
1.7.7


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