Style(Config.w32): Format

config.w32

@@ -13,6 +13,8 @@ if (PHP_XLSWRITER != "no") {
         ADD_SOURCES(configure_module_dirname + "\\library\\third_party\\tmpfileplus", "tmpfileplus.c", "xlswriter");
         ADD_SOURCES(configure_module_dirname + "\\library\\src", "app.c chart.c content_types.c core.c custom.c drawing.c format.c hash_table.c packager.c relationships.c shared_strings.c styles.c theme.c utility.c workbook.c worksheet.c xmlwriter.c", "xlswriter");
         ADD_SOURCES(configure_module_dirname + "\\kernel", "common.c resource.c exception.c excel.c write.c format.c", "xlswriter");
+    } else {
+        WARNING(PHP_PHP_BUILD+"-"+PHP_XLSWRITER);
     }
 
 }