+/* Attributes are only in recent versions of GCC */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
+# define _XBT_GNUC_PRINTF( format_idx, arg_idx ) \
+ __attribute__((__format__ (__printf__, format_idx, arg_idx)))
+# define _XBT_GNUC_SCANF( format_idx, arg_idx ) \
+ __attribute__((__format__ (__scanf__, format_idx, arg_idx)))
+# define _XBT_GNUC_FORMAT( arg_idx ) \
+ __attribute__((__format_arg__ (arg_idx)))
+# define _XBT_GNUC_NORETURN __attribute__((__noreturn__))
+# define _XBT_GNUC_UNUSED __attribute__((unused))
+
+#else /* !__GNUC__ */
+# define _XBT_GNUC_PRINTF( format_idx, arg_idx )
+# define _XBT_GNUC_SCANF( format_idx, arg_idx )
+# define _XBT_GNUC_FORMAT( arg_idx )
+# define _XBT_GNUC_NORETURN
+# define _XBT_GNUC_UNUSED
+
+#endif /* !__GNUC__ */
+
+/* inline and __FUNCTION__ are only in GCC when -ansi is off */
+
+#if defined(__GNUC__) && ! defined(__STRICT_ANSI__)
+# define _XBT_FUNCTION __FUNCTION__
+#elif (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+# define _XBT_FUNC__ __func__ /* ISO-C99 compliant */
+#else
+# define _XBT_FUNCTION "function"
+#endif
+
+#ifndef __cplusplus
+# if defined(__GNUC__) && ! defined(__STRICT_ANSI__)
+# define XBT_INLINE inline
+# elif (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
+# define XBT_INLINE inline
+# elif defined(__BORLANDC__) && !defined(__STRICT_ANSI__)
+# define XBT_INLINE __inline
+# else
+# define XBT_INLINE
+# endif
+# else
+# define XBT_INLINE inline
+#endif
+
+/* Windows __declspec(). */
+#if defined(_WIN32) && defined(__BORLANDC__)
+# if(__BORLANDC__ < 0x540)
+# if (defined (__DLL) || defined (_DLL) || defined (_WINDLL) || defined (_RTLDLL) || defined (_XBT_USE_DYNAMIC_LIB) ) && ! defined (_XBT_USE_STAT
+# undef _XBT_USE_DECLSPEC
+# define _XBT_USE_DECLSPEC
+# endif
+# else
+# if ( defined (__DLL) || defined (_DLL) || defined (_WINDLL) || defined (_RTLDLL) || defined(_AFXDLL) || defined (_XBT_USE_DYNAMIC_LIB) )
+# undef _XBT_USE_DECLSPEC
+# define _XBT_USE_DECLSPEC 1
+# endif
+# endif
+#endif
+
+#if defined (_XBT_USE_DECLSPEC) /* using export/import technique */
+
+# ifndef _XBT_EXPORT_DECLSPEC
+# define _XBT_EXPORT_DECLSPEC
+# endif
+
+# ifndef _XBT_IMPORT_DECLSPEC
+# define _XBT_IMPORT_DECLSPEC
+# endif
+
+# if defined (_XBT_DESIGNATED_DLL) /* this is a lib which will contain xbt exports */
+# define XBT_PUBLIC _XBT_EXPORT_DECLSPEC
+# else
+# define XBT_PUBLIC _XBT_IMPORT_DECLSPEC /* other modules, importing xbt exports */
+# endif
+
+#else /* not using DLL export/import specifications */
+
+# define XBT_PUBLIC
+
+#endif /* #if defined (_XBT_USE_DECLSPEC) */
+
+/* Function calling convention (not used for now) */
+#if !defined (_XBT_CALL)
+#define _XBT_CALL
+#endif
+
+
+
+#ifndef max
+# define max(a, b) (((a) > (b))?(a):(b))
+#endif
+#ifndef min
+# define min(a, b) (((a) < (b))?(a):(b))
+#endif