diff -Naur cmake-2.6.2/Source/cmGlobalXCodeGenerator.cxx cmake-cthing-2.6.2/Source/cmGlobalXCodeGenerator.cxx
--- cmake-2.6.2/Source/cmGlobalXCodeGenerator.cxx	2008-09-24 11:34:36.000000000 -0700
+++ cmake-dash-2.6.2/Source/cmGlobalXCodeGenerator.cxx	2008-12-05 00:39:01.000000000 -0800
@@ -537,6 +537,10 @@
     {
     sourcecode = "compiled.mach-o.objfile";
     }
+  else if(ext == "xib")
+    {
+    sourcecode = "file.xib";
+    }
   else if(ext == "mm")
     {
     sourcecode += ".cpp.objcpp";