Remove mingwcompat.c

We believe that the issues that this was working around have been
fixed in MinGW more than 5 years ago, so this isn't necessary anymore.

Discussion: https://www.postgresql.org/message-id/flat/20190719050830.GK1859%40paquier.xyz

diff --git a/src/backend/port/win32/Makefile b/src/backend/port/win32/Makefile
index a6ace93e261a71c789b713d861d0b75c86beb4f4..833c9e06dc69f812a20c8d4b17a254d94178a900 100644 (file)
--- a/src/backend/port/win32/Makefile
+++ b/src/backend/port/win32/Makefile
@@ -12,7 +12,7 @@ subdir = src/backend/port/win32
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = timer.o socket.o signal.o mingwcompat.o
+OBJS = timer.o socket.o signal.o
 ifeq ($(have_win32_dbghelp), yes)
 OBJS += crashdump.o
 endif

diff --git a/src/backend/port/win32/mingwcompat.c b/src/backend/port/win32/mingwcompat.c
deleted file mode 100644 (file)
index 2269fcc..0000000
--- a/src/backend/port/win32/mingwcompat.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * mingwcompat.c
- *       MinGW compatibility functions
- *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
- *
- * IDENTIFICATION
- *       src/backend/port/win32/mingwcompat.c
- *
- *-------------------------------------------------------------------------
- */
-
-#include "postgres.h"
-
-#ifndef _MSC_VER
-/*
- * MingW defines an extern to this struct, but the actual struct isn't present
- * in any library. It's trivial enough that we can safely define it
- * ourselves.
- */
-const struct in6_addr in6addr_any = {{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}};
-
-
-/*
- * This file contains loaders for functions that are missing in the MinGW
- * import libraries. It's only for actual Win32 API functions, so they are
- * all present in proper Win32 compilers.
- */
-static HMODULE kernel32 = NULL;
-
-/*
- * Load DLL file just once regardless of how many functions
- * we load/call in it.
- */
-static void
-LoadKernel32()
-{
-       if (kernel32 != NULL)
-               return;
-
-       kernel32 = LoadLibraryEx("kernel32.dll", NULL, 0);
-       if (kernel32 == NULL)
-               ereport(FATAL,
-                               (errmsg_internal("could not load kernel32.dll: error code %lu",
-                                                                GetLastError())));
-}
-
-
-/*
- * Replacement for RegisterWaitForSingleObject(), which lives in
- * kernel32.dll
- */
-typedef
-BOOL           (WINAPI * __RegisterWaitForSingleObject)
-                       (PHANDLE, HANDLE, WAITORTIMERCALLBACK, PVOID, ULONG, ULONG);
-static __RegisterWaitForSingleObject _RegisterWaitForSingleObject = NULL;
-
-BOOL           WINAPI
-RegisterWaitForSingleObject(PHANDLE phNewWaitObject,
-                                                       HANDLE hObject,
-                                                       WAITORTIMERCALLBACK Callback,
-                                                       PVOID Context,
-                                                       ULONG dwMilliseconds,
-                                                       ULONG dwFlags)
-{
-       if (_RegisterWaitForSingleObject == NULL)
-       {
-               LoadKernel32();
-
-               _RegisterWaitForSingleObject = (__RegisterWaitForSingleObject)
-                       GetProcAddress(kernel32, "RegisterWaitForSingleObject");
-
-               if (_RegisterWaitForSingleObject == NULL)
-                       ereport(FATAL,
-                                       (errmsg_internal("could not locate RegisterWaitForSingleObject in kernel32.dll: error code %lu",
-                                                                        GetLastError())));
-       }
-
-       return (_RegisterWaitForSingleObject)
-               (phNewWaitObject, hObject, Callback, Context, dwMilliseconds, dwFlags);
-}
-
-#endif