diff --git a/cfg/wxwidgets.cfg b/cfg/wxwidgets.cfg
index 0fbe9eed4..4fcb6b6cb 100644
--- a/cfg/wxwidgets.cfg
+++ b/cfg/wxwidgets.cfg
@@ -821,6 +821,46 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- http://docs.wxwidgets.org/3.1/classwx_box_sizer.html -->
+  <!-- virtual wxSizerItem* wxBoxSizer::AddSpacer( int size )-->
+  <function name="wxBoxSizer::AddSpacer">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <returnValue type="wxSizerItem*"/>
+    <use-retval/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- http://docs.wxwidgets.org/3.1/classwx_box_sizer.html#a58007d1fd88698b9f733ba651977ad55 -->
+  <!-- virtual wxSize wxBoxSizer::CalcMin()-->
+  <function name="wxBoxSizer::CalcMin">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+  </function>
+  <!-- http://docs.wxwidgets.org/3.1/classwx_box_sizer.html#a58007d1fd88698b9f733ba651977ad55 -->
+  <!-- int wxBoxSizer::GetOrientation ( ) const-->
+  <function name="wxBoxSizer::GetOrientation">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <returnValue type="int"/>
+    <use-retval/>
+  </function>
+  <!-- http://docs.wxwidgets.org/3.1/classwx_box_sizer.html#a58007d1fd88698b9f733ba651977ad55 -->
+  <!-- virtual void wxBoxSizer::RecalcSizes() -->
+  <function name="wxBoxSizer::RecalcSizes">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+  </function>
+  <!-- http://docs.wxwidgets.org/3.1/classwx_box_sizer.html -->
+  <!-- void wxBoxSizer::SetOrientation() -->
+  <function name="wxBoxSizer::SetOrientation">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+  </function>
   <!-- Override macros which don't necessarily require semicolons at the end -->
   <define name="DECLARE_CLASS(n)" value=""/>
   <define name="DECLARE_DYNAMIC_CLASS(n)" value=""/>