-# undef LONG_MIN
-# define LONG_MIN LONG_LONG_MIN
-# undef LONG_MAX
-# define LONG_MAX LONG_LONG_MAX
-# undef ULONG_MAX
-# define ULONG_MAX ULONG_LONG_MAX
+# define STRTOL_LONG_MIN LONG_LONG_MIN
+# define STRTOL_LONG_MAX LONG_LONG_MAX
+# define STRTOL_ULONG_MAX ULONG_LONG_MAX
+
+/* The extra casts in the following macros work around compiler bugs,
+ e.g., in Cray C 5.0.3.0. */
+
+/* True if the arithmetic type T is signed. */
+# ifndef TYPE_SIGNED
+# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+# endif
+
+/* The maximum and minimum values for the integer type T. These
+ macros have undefined behavior if T is signed and has padding bits
+ (i.e., bits that do not contribute to the value), or if T uses
+ signed-magnitude representation. If this is a problem for you,
+ please let us know how to fix it for your host. */
+# ifndef TYPE_MINIMUM
+# define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
+ ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
+ : (t) 0))
+# endif
+# ifndef TYPE_MAXIMUM
+# define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
+# endif
+
+# ifndef ULONG_LONG_MAX
+# define ULONG_LONG_MAX TYPE_MAXIMUM (unsigned long long)
+# endif
+# ifndef LONG_LONG_MAX
+# define LONG_LONG_MAX TYPE_MAXIMUM (long long int)
+# endif
+# ifndef LONG_LONG_MIN
+# define LONG_LONG_MIN TYPE_MINIMUM (long long int)
+# endif
+