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plpython_system.h
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1/*-------------------------------------------------------------------------
2 *
3 * plpython_system.h - pull in Python's system header files
4 *
5 * We break this out as a separate header file to precisely control
6 * the scope of the "system_header" pragma. No Postgres-specific
7 * declarations should be put here. However, we do include some stuff
8 * that is meant to prevent conflicts between our code and Python.
9 *
10 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
11 * Portions Copyright (c) 1994, Regents of the University of California
12 *
13 * src/pl/plpython/plpython_system.h
14 *
15 *-------------------------------------------------------------------------
16 */
17#ifndef PLPYTHON_SYSTEM_H
18#define PLPYTHON_SYSTEM_H
19
20/*
21 * Newer versions of the Python headers trigger a lot of warnings with our
22 * preferred compiler flags (at least -Wdeclaration-after-statement is known
23 * to be problematic). The system_header pragma hides warnings from within
24 * the rest of this file, if supported.
25 */
26#ifdef HAVE_PRAGMA_GCC_SYSTEM_HEADER
27#pragma GCC system_header
28#endif
29
30/*
31 * Python versions <= 3.8 otherwise define a replacement, causing macro
32 * redefinition warnings.
33 */
34#define HAVE_SNPRINTF 1
35
36#if defined(_MSC_VER) && defined(_DEBUG)
37/* Python uses #pragma to bring in a non-default libpython on VC++ if
38 * _DEBUG is defined */
39#undef _DEBUG
40/* Also hide away errcode, since we load Python.h before postgres.h */
41#define errcode __msvc_errcode
42#include <Python.h>
43#undef errcode
44#define _DEBUG
45#elif defined (_MSC_VER)
46#define errcode __msvc_errcode
47#include <Python.h>
48#undef errcode
49#else
50#include <Python.h>
51#endif
52
53#endif /* PLPYTHON_SYSTEM_H */