Rationalize use of limits.h, moving the inclusion to Python.h.

Add definitions of INT_MAX and LONG_MAX to pyport.h.
Remove includes of limits.h and conditional definitions of INT_MAX
and LONG_MAX elsewhere.

This closes SourceForge patch #101659 and bug #115323.

Objects/complexobject.c

@@ -9,10 +9,6 @@
 
 #include "Python.h"
 
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-
 
 /* elementary operations on complex numbers */
 

Objects/fileobject.c

@@ -4,10 +4,6 @@
 #include "Python.h"
 #include "structmember.h"
 
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-
 #ifndef DONT_HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif /* DONT_HAVE_SYS_TYPES_H */

Objects/floatobject.c

@@ -23,36 +23,6 @@
 #define CHECK(x) /* Don't know how to check */
 #endif
 
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-
-#ifndef LONG_MAX
-#if SIZEOF_LONG == 4
-#define LONG_MAX 0X7FFFFFFFL
-#elif SIZEOF_LONG == 8
-#define LONG_MAX 0X7FFFFFFFFFFFFFFFL
-#else
-#error "could not set LONG_MAX"
-#endif
-#endif
-
-#ifndef LONG_MIN
-#define LONG_MIN (-LONG_MAX-1)
-#endif
-
-#ifdef __NeXT__
-#ifdef __sparc__
-/*
- * This works around a bug in the NS/Sparc 3.3 pre-release
- * limits.h header file.
- * 10-Feb-1995 bwarsaw@cnri.reston.va.us
- */
-#undef LONG_MIN
-#define LONG_MIN (-LONG_MAX-1)
-#endif
-#endif
-
 #if !defined(__STDC__) && !defined(macintosh)
 extern double fmod(double, double);
 extern double pow(double, double);

Objects/intobject.c

@@ -4,18 +4,6 @@
 #include "Python.h"
 #include <ctype.h>
 
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
-
-#ifndef LONG_MAX
-#define LONG_MAX 0X7FFFFFFFL
-#endif
-
-#ifndef LONG_MIN
-#define LONG_MIN (-LONG_MAX-1)
-#endif
-
 #ifndef CHAR_BIT
 #define CHAR_BIT 8
 #endif

Objects/listobject.c

@@ -8,9 +8,6 @@
 #else
 #include <sys/types.h>		/* For size_t */
 #endif
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
 
 #define ROUNDUP(n, PyTryBlock) \
 	((((n)+(PyTryBlock)-1)/(PyTryBlock))*(PyTryBlock))

Objects/object.c

@@ -2,9 +2,6 @@
 /* Generic object operations; and implementation of None (NoObject) */
 
 #include "Python.h"
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#endif
 
 #ifdef macintosh
 #include "macglue.h"

Objects/stringobject.c

@@ -9,13 +9,9 @@
 int null_strings, one_strings;
 #endif
 
-#ifdef HAVE_LIMITS_H
-#include <limits.h>
-#else
-#ifndef UCHAR_MAX
+#if !defined(HAVE_LIMITS_H) && !defined(UCHAR_MAX)
 #define UCHAR_MAX 255
 #endif
-#endif
 
 static PyStringObject *characters[UCHAR_MAX + 1];
 #ifndef DONT_SHARE_SHORT_STRINGS

Objects/unicodeobject.c

@@ -67,12 +67,6 @@ Copyright (c) Corporation for National Research Initiatives.
 #include "unicodeobject.h"
 #include "ucnhash.h"
 
-#if defined(HAVE_LIMITS_H)
-#include <limits.h>
-#else
-#define INT_MAX 2147483647
-#endif
-
 #ifdef MS_WIN32
 #include <windows.h>
 #endif