diff --git a/cfg/motif.cfg b/cfg/motif.cfg
index 9d20a65f1..65f0f12d8 100644
--- a/cfg/motif.cfg
+++ b/cfg/motif.cfg
@@ -99,6 +99,28 @@
     <alloc init="true">XmFontListAppendEntry</alloc>
   </resource>
   <!-- Intrinsics, not Motif... -->
+  <function name="XtAddCallback">
+    <leak-ignore/>
+    <returnValue type="void"/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="4"/>
+  </function>
+  <function name="XtAddCallbacks">
+    <leak-ignore/>
+    <returnValue type="void"/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="3"/>
+  </function>
   <function name="XtAsprintf">
     <leak-ignore/>
     <returnValue type="Cardinal"/>
@@ -151,6 +173,45 @@
       <not-uninit/>
     </arg>
   </function>
+  <function name="XtRemoveAllCallbacks">
+    <leak-ignore/>
+    <returnValue type="void"/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+  </function>
+  <function name="XtRemoveCallback">
+    <leak-ignore/>
+    <returnValue type="void"/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="4"/>
+  </function>
+  <function name="XtRemoveCallbacks">
+    <leak-ignore/>
+    <returnValue type="void"/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <arg nr="3"/>
+  </function>
+  <function name="XtWindow,XtWindowOfObject">
+    <leak-ignore/>
+    <returnValue type="Window"/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+  </function>
   <resource>
     <dealloc>XtFree</dealloc>
     <alloc init="true">XtMalloc</alloc>
@@ -178,6 +239,7 @@
   <!-- X11... -->
   <function name="XOpenDisplay">
     <noreturn>false</noreturn>
+    <returnValue type="Display *"/>
     <leak-ignore/>
     <arg nr="1">
       <not-uninit/>
@@ -185,6 +247,7 @@
   </function>
   <function name="XCloseDisplay">
     <noreturn>false</noreturn>
+    <returnValue type="int"/>
     <leak-ignore/>
     <arg nr="1">
       <not-uninit/>
@@ -215,6 +278,5 @@
     <dealloc>XCloseDisplay</dealloc>
     <alloc init="true">XOpenDisplay</alloc>
   </resource>
-  <podtype name="Display"/>
   <podtype name="XrmDatabase"/>
 </def>