diff -r 28e0105114a4 -r c9a59f791321 src/ai/ai_squirrel.cpp
--- a/src/ai/ai_squirrel.cpp	Fri Mar 16 09:57:39 2007 +0000
+++ b/src/ai/ai_squirrel.cpp	Fri Mar 16 09:59:19 2007 +0000
@@ -27,6 +27,7 @@
 #include "api/ai_industry.hpp"
 #include "api/ai_map.hpp"
 #include "api/ai_town.hpp"
+#undef DEFINE_SQUIRREL_CLASS
 
 static FSquirrel iFSquirrel; ///< Tell the AI-core that we have an AI with which we like to play.