greenplumn win32 源码
greenplumn win32 代码
文件路径：/src/include/port/win32.h
/* src/include/port/win32.h */
/*
* We always rely on the WIN32 macro being set by our build system,
* but _WIN32 is the compiler pre-defined macro. So make sure we define
* WIN32 whenever _WIN32 is set, to facilitate standalone building.
*/
#if defined(_WIN32) && !defined(WIN32)
#define WIN32
#endif
/*
* Make sure _WIN32_WINNT has the minimum required value.
* Leave a higher value in place. When building with at least Visual
* Studio 2015 the minimum requirement is Windows Vista (0x0600) to
* get support for GetLocaleInfoEx() with locales. For everything else
* the minimum version is Windows XP (0x0501).
*/
#if defined(_MSC_VER) && _MSC_VER >= 1900
#define MIN_WINNT 0x0600
#else
#define MIN_WINNT 0x0501
#endif
#if defined(_WIN32_WINNT) && _WIN32_WINNT < MIN_WINNT
#undef _WIN32_WINNT
#endif
#ifndef _WIN32_WINNT
#define _WIN32_WINNT MIN_WINNT
#endif
/*
* We need to prevent <crtdefs.h> from defining a symbol conflicting with
* our errcode() function. Since it's likely to get included by standard
* system headers, pre-emptively include it now.
*/
#if _MSC_VER >= 1400 || defined(HAVE_CRTDEFS_H)
#define errcode __msvc_errcode
#include <crtdefs.h>
#undef errcode
#endif
/*
* defines for dynamic linking on Win32 platform
*/
#ifdef BUILDING_DLL
#define PGDLLIMPORT __declspec (dllexport)
#else
#define PGDLLIMPORT __declspec (dllimport)
#endif
#ifdef _MSC_VER
#define PGDLLEXPORT __declspec (dllexport)
#else
#define PGDLLEXPORT
#endif
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