diff -urp plee-the-bear-0.4.1/bear-engine/core/src/engine/CMakeLists.txt plee-the-bear-0.4.1.fixed/bear-engine/core/src/engine/CMakeLists.txt
--- plee-the-bear-0.4.1/bear-engine/core/src/engine/CMakeLists.txt	2009-07-30 12:54:26.000000000 +0200
+++ plee-the-bear-0.4.1.fixed/bear-engine/core/src/engine/CMakeLists.txt	2010-02-17 23:28:41.005494996 +0100
@@ -82,4 +82,5 @@ TARGET_LINK_LIBRARIES(
   ${CLAW_DYNAMIC_LIBRARY_LIBRARIES}
   ${CLAW_GRAPHIC_LIBRARIES}
   ${Boost_FILESYSTEM_LIBRARY}
+  ${Boost_SYSTEM_LIBRARY}
 )
diff -urp plee-the-bear-0.4.1/bear-factory/animation-editor/src/bf/CMakeLists.txt plee-the-bear-0.4.1.fixed/bear-factory/animation-editor/src/bf/CMakeLists.txt
--- plee-the-bear-0.4.1/bear-factory/animation-editor/src/bf/CMakeLists.txt	2009-07-10 23:59:24.000000000 +0200
+++ plee-the-bear-0.4.1.fixed/bear-factory/animation-editor/src/bf/CMakeLists.txt	2010-02-17 23:28:57.879653006 +0100
@@ -26,6 +26,7 @@ TARGET_LINK_LIBRARIES(
   ${CLAW_CONFIGURATION_FILE_LIBRARIES}
   ${CLAW_LOGGER_LIBRARIES}
   ${Boost_FILESYSTEM_LIBRARY}
+  ${Boost_SYSTEM_LIBRARY}
   )
 
 INSTALL(
diff -urp plee-the-bear-0.4.1/bear-factory/bear-editor/src/bf/CMakeLists.txt plee-the-bear-0.4.1.fixed/bear-factory/bear-editor/src/bf/CMakeLists.txt
--- plee-the-bear-0.4.1/bear-factory/bear-editor/src/bf/CMakeLists.txt	2009-09-02 23:14:42.000000000 +0200
+++ plee-the-bear-0.4.1.fixed/bear-factory/bear-editor/src/bf/CMakeLists.txt	2010-02-17 23:28:51.792622452 +0100
@@ -87,6 +87,7 @@ TARGET_LINK_LIBRARIES(
   ${CLAW_LOGGER_LIBRARIES}
   ${CLAW_CONFIGURATION_FILE_LIBRARIES}
   ${Boost_FILESYSTEM_LIBRARY}
+  ${Boost_SYSTEM_LIBRARY}
   )
 
 INSTALL(
diff -urp plee-the-bear-0.4.1/bear-factory/CMakeLists.txt plee-the-bear-0.4.1.fixed/bear-factory/CMakeLists.txt
--- plee-the-bear-0.4.1/bear-factory/CMakeLists.txt	2009-09-02 23:14:42.000000000 +0200
+++ plee-the-bear-0.4.1.fixed/bear-factory/CMakeLists.txt	2010-02-18 08:36:28.637517349 +0100
@@ -68,7 +68,7 @@ INCLUDE_DIRECTORIES(
   ${Boost_INCLUDE_DIR}
   )
 
-FIND_PACKAGE( Boost 1.33 REQUIRED COMPONENTS filesystem )
+FIND_PACKAGE( Boost 1.33 REQUIRED COMPONENTS filesystem system )
 
 IF( NOT Boost_FOUND )
   MESSAGE( FATAL_ERROR 
diff -urp plee-the-bear-0.4.1/bear-factory/level-editor/src/bf/CMakeLists.txt plee-the-bear-0.4.1.fixed/bear-factory/level-editor/src/bf/CMakeLists.txt
--- plee-the-bear-0.4.1/bear-factory/level-editor/src/bf/CMakeLists.txt	2009-07-10 23:59:24.000000000 +0200
+++ plee-the-bear-0.4.1.fixed/bear-factory/level-editor/src/bf/CMakeLists.txt	2010-02-17 23:28:47.473614863 +0100
@@ -76,6 +76,7 @@ TARGET_LINK_LIBRARIES(
   ${CLAW_CONFIGURATION_FILE_LIBRARIES}
   ${CLAW_LOGGER_LIBRARIES}
   ${Boost_FILESYSTEM_LIBRARY}
+  ${Boost_SYSTEM_LIBRARY}
   )
 
 INSTALL(
diff -urp plee-the-bear-0.4.1/bear-factory/model-editor/src/bf/CMakeLists.txt plee-the-bear-0.4.1.fixed/bear-factory/model-editor/src/bf/CMakeLists.txt
--- plee-the-bear-0.4.1/bear-factory/model-editor/src/bf/CMakeLists.txt	2009-08-12 11:38:29.000000000 +0200
+++ plee-the-bear-0.4.1.fixed/bear-factory/model-editor/src/bf/CMakeLists.txt	2010-02-17 23:28:49.674494003 +0100
@@ -73,6 +73,7 @@ TARGET_LINK_LIBRARIES(
   ${CLAW_CONFIGURATION_FILE_LIBRARIES}
   ${CLAW_LOGGER_LIBRARIES}
   ${Boost_FILESYSTEM_LIBRARY}
+  ${Boost_SYSTEM_LIBRARY}
   )
 
 INSTALL(