diff --git a/configure b/configure
index 70000347538..f96c0ffdd60 100755
--- a/configure
+++ b/configure
@@ -20713,6 +20713,23 @@ esac
 
 fi
 
+# mingw has adopted a GNU-centric interpretation of optind/optreset,
+# so always use our version on Windows.
+if test "$PORTNAME" = "win32"; then
+  case " $LIBOBJS " in
+  *" getopt.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS getopt.$ac_objext"
+ ;;
+esac
+
+  case " $LIBOBJS " in
+  *" getopt_long.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS getopt_long.$ac_objext"
+ ;;
+esac
+
+fi
+
 # Cygwin's erand48() is broken (always returns zero) in some releases,
 # so force use of ours.
 if test "$PORTNAME" = "cygwin"; then
@@ -20835,25 +20852,25 @@ fi
 done
 
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" kill.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS kill.$ac_objext"
  ;;
 esac
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" open.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS open.$ac_objext"
  ;;
 esac
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" win32env.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS win32env.$ac_objext"
  ;;
 esac
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" win32error.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS win32error.$ac_objext"
  ;;
diff --git a/configure.in b/configure.in
index df95cc7b09b..b0644dfb6d3 100644
--- a/configure.in
+++ b/configure.in
@@ -1328,6 +1328,13 @@ if test "$PORTNAME" = "solaris"; then
   AC_LIBOBJ(getopt)
 fi
 
+# mingw has adopted a GNU-centric interpretation of optind/optreset,
+# so always use our version on Windows.
+if test "$PORTNAME" = "win32"; then
+  AC_LIBOBJ(getopt)
+  AC_LIBOBJ(getopt_long)
+fi
+
 # Cygwin's erand48() is broken (always returns zero) in some releases,
 # so force use of ours.
 if test "$PORTNAME" = "cygwin"; then
@@ -1336,13 +1343,13 @@ fi
 
 # Win32 support
 if test "$PORTNAME" = "win32"; then
-AC_REPLACE_FUNCS(gettimeofday)
-AC_LIBOBJ(kill)
-AC_LIBOBJ(open)
-AC_LIBOBJ(win32env)
-AC_LIBOBJ(win32error)
-AC_DEFINE([HAVE_SYMLINK], 1,
-          [Define to 1 if you have the `symlink' function.])
+  AC_REPLACE_FUNCS(gettimeofday)
+  AC_LIBOBJ(kill)
+  AC_LIBOBJ(open)
+  AC_LIBOBJ(win32env)
+  AC_LIBOBJ(win32error)
+  AC_DEFINE([HAVE_SYMLINK], 1,
+            [Define to 1 if you have the `symlink' function.])
 fi
 
 if test "$with_readline" = yes; then
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 279f0f081a4..7e8af148ac8 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -312,7 +312,8 @@ extern char *optarg;
 extern int	optind,
 			opterr;
 
-#ifdef HAVE_INT_OPTRESET
+/* If not HAVE_GETOPT, we are using src/port/getopt.c, which has optreset */
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 extern int	optreset;			/* might not be declared by system headers */
 #endif
 
@@ -750,7 +751,7 @@ PostmasterMain(int argc, char *argv[])
 	 * getopt(3) library so that it will work correctly in subprocesses.
 	 */
 	optind = 1;
-#ifdef HAVE_INT_OPTRESET
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 	optreset = 1;				/* some systems need this too */
 #endif
 
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index 62adaca2174..052b2565570 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -77,7 +77,8 @@
 extern char *optarg;
 extern int	optind;
 
-#ifdef HAVE_INT_OPTRESET
+/* If not HAVE_GETOPT, we are using src/port/getopt.c, which has optreset */
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 extern int	optreset;			/* might not be declared by system headers */
 #endif
 
@@ -3439,7 +3440,7 @@ process_postgres_switches(int argc, char *argv[], GucContext ctx)
 	 * or when this function is called a second time with another array.
 	 */
 	optind = 1;
-#ifdef HAVE_INT_OPTRESET
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 	optreset = 1;				/* some systems need this too */
 #endif