******************************************************/
-#if !defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(INT8_C)
+#if !defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && \
+ (!defined(INT8_C) || !defined(INT16_C) || !defined(INT32_C) || !defined(INT64_C))
+//
+// For the following code we get several warnings along the lines of:
+//
+// boost/cstdint.hpp:428:35: error: use of C99 long long integer constant
+//
+// So we declare this a system header to suppress these warnings.
+//
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+#pragma GCC system_header
+#endif
+
#include <limits.h>
# define BOOST__STDC_CONSTANT_MACROS_DEFINED
# if defined(BOOST_HAS_MS_INT64)
//
// Borland/Intel/Microsoft compilers have width specific suffixes:
//
+#ifndef INT8_C
# define INT8_C(value) value##i8
+#endif
+#ifndef INT16_C
# define INT16_C(value) value##i16
+#endif
+#ifndef INT32_C
# define INT32_C(value) value##i32
+#endif
+#ifndef INT64_C
# define INT64_C(value) value##i64
+#endif
# ifdef __BORLANDC__
// Borland bug: appending ui8 makes the type a signed char
# define UINT8_C(value) static_cast<unsigned char>(value##u)
# else
# define UINT8_C(value) value##ui8
# endif
+#ifndef UINT16_C
# define UINT16_C(value) value##ui16
+#endif
+#ifndef UINT32_C
# define UINT32_C(value) value##ui32
+#endif
+#ifndef UINT64_C
# define UINT64_C(value) value##ui64
+#endif
+#ifndef INTMAX_C
# define INTMAX_C(value) value##i64
# define UINTMAX_C(value) value##ui64
+#endif
# else
// do it the old fashioned way:
// 8-bit types ------------------------------------------------------------//
-# if UCHAR_MAX == 0xff
+# if (UCHAR_MAX == 0xff) && !defined(INT8_C)
# define INT8_C(value) static_cast<boost::int8_t>(value)
# define UINT8_C(value) static_cast<boost::uint8_t>(value##u)
# endif
// 16-bit types -----------------------------------------------------------//
-# if USHRT_MAX == 0xffff
+# if (USHRT_MAX == 0xffff) && !defined(INT16_C)
# define INT16_C(value) static_cast<boost::int16_t>(value)
# define UINT16_C(value) static_cast<boost::uint16_t>(value##u)
# endif
// 32-bit types -----------------------------------------------------------//
-
-# if UINT_MAX == 0xffffffff
+#ifndef INT32_C
+# if (UINT_MAX == 0xffffffff)
# define INT32_C(value) value
# define UINT32_C(value) value##u
# elif ULONG_MAX == 0xffffffff
# define INT32_C(value) value##L
# define UINT32_C(value) value##uL
# endif
+#endif
// 64-bit types + intmax_t and uintmax_t ----------------------------------//
-
+#ifndef INT64_C
# if defined(BOOST_HAS_LONG_LONG) && \
(defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX) || defined(_LLONG_MAX))
# define INTMAX_C(value) INT64_C(value)
# define UINTMAX_C(value) UINT64_C(value)
# endif
-
+#endif
# endif // Borland/Microsoft specific width suffixes
#endif // INT#_C macros.