src/pl/plpython/plpython_system.h

   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) 1996-2024, 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 */