diff -ruN --exclude=CVS /usr/ports/science/avogadro/files/patch-libavogadro__CMakeLists.txt ./files/patch-libavogadro__CMakeLists.txt
--- /usr/ports/science/avogadro/files/patch-libavogadro__CMakeLists.txt	1970-01-01 01:00:00.000000000 +0100
+++ ./files/patch-libavogadro__CMakeLists.txt	2012-11-26 21:42:29.000000000 +0100
@@ -0,0 +1,12 @@
+--- libavogadro/CMakeLists.txt.orig	2012-11-26 21:38:12.000000000 +0100
++++ libavogadro/CMakeLists.txt	2012-11-26 21:39:47.000000000 +0100
+@@ -18,7 +18,8 @@
+   # Assume all MOC stuff is in the headers, replace .cpp and use qt4_wrap_cpp
+   # We should probably scan the header to verify the Q_OBJECT macro is used
+   string(REPLACE ".cpp" ".h" hdr_list "${src_list}")
+-  qt4_wrap_cpp(moc_files ${hdr_list})
++  qt4_wrap_cpp(moc_files ${hdr_list} OPTIONS
++      -DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED)
+   # Now sort out the ui and qrc files, process them as appropriate
+   set(ui_plugin_files)
+   set(qrc_plugin_files)