Work-around Windows 32 bit build failure in GHA

Author: jerboaa

jdk/src/windows/native/sun/windows/awt_Desktop.cpp

@@ -30,6 +30,7 @@
 #include <float.h>
 #include <Windows.h>
 #include <shlwapi.h>  // for AssocQueryStringW
+#include "awt_Desktop.h"
 #include <wchar.h>
 #include <cwchar>
 #include <string.h>

jdk/src/windows/native/sun/windows/awt_Desktop.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2026, IBM Corporation. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#ifndef AWT_DESKTOP_PROPERTIES_H
+#define AWT_DESKTOP_PROPERTIES_H
+
+// Work around build failure on 32-bit Windows.
+#if !defined(_WIN64)
+#ifndef ASSOCF_NONE
+#define ASSOCF_NONE 0x00000000
+#endif // ASSOCF_NONE
+#endif // 32 bit Windows
+
+#endif // AWT_DESKTOP_PROPERTIES_H