diff -Naur imageworks-Field3D-94d1bf3.orig/CMakeLists.txt imageworks-Field3D-94d1bf3/CMakeLists.txt
--- imageworks-Field3D-94d1bf3.orig/CMakeLists.txt 2012-02-04 11:37:22.000000000 -0600
+++ imageworks-Field3D-94d1bf3/CMakeLists.txt 2012-08-09 16:53:06.676930806 -0500
@@ -39,7 +39,7 @@
FIND_PACKAGE (Doxygen)
FIND_PACKAGE (HDF5)
-FIND_PACKAGE (Boost COMPONENTS thread program_options)
+FIND_PACKAGE (Boost COMPONENTS thread program_options system)
FIND_PACKAGE (ILMBase)
OPTION (INSTALL_DOCS "Automatically install documentation." ON)