diff -ru cmake-2.8.4-orig/Source/cmCPluginAPI.cxx cmake-2.8.4/Source/cmCPluginAPI.cxx
--- cmake-2.8.4-orig/Source/cmCPluginAPI.cxx	2011-02-15 12:47:28.000000000 -0500
+++ cmake-2.8.4/Source/cmCPluginAPI.cxx	2011-05-28 12:15:20.000000000 -0400
@@ -518,7 +518,7 @@
 };
 cmCPluginAPISourceFileMap cmCPluginAPISourceFiles;
 
-void * CCONV cmCreateSourceFile()
+void * CCONV cmCreateSourceFile(void)
 {
   return (void*)new cmCPluginAPISourceFile;
 }