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src/include/port/win32.h
59 строк
2 KB
Andres Freund
mingw: Define PGDLLEXPORT as __declspec (dllexport) as done for msvc
30 сен 2022, 20:50
30 сен 2022, 20:50
0e497ea
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/* 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. The minimum requirement is Windows 10. */ #ifdef _WIN32_WINNT #undef _WIN32_WINNT #endif #define _WIN32_WINNT 0x0A00 /* * 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 defined(_MSC_VER) || defined(HAVE_CRTDEFS_H) #define errcode __msvc_errcode #include <crtdefs.h> #undef errcode #endif /* * defines for dynamic linking on Win32 platform */ /* * Variables declared in the core backend and referenced by loadable * modules need to be marked "dllimport" in the core build, but * "dllexport" when the declaration is read in a loadable module. * No special markings should be used when compiling frontend code. */ #ifndef FRONTEND #ifdef BUILDING_DLL #define PGDLLIMPORT __declspec (dllexport) #else #define PGDLLIMPORT __declspec (dllimport) #endif #endif /* * Functions exported by a loadable module must be marked "dllexport". * * While mingw would otherwise fall back to * __attribute__((visibility("default"))), that appears to only work as long * as no symbols are declared with __declspec(dllexport). But we can end up * with some, e.g. plpython's Py_Init. */ #define PGDLLEXPORT __declspec (dllexport)