Merge pull request orocos-toolchain#102 from orocos-toolchain/toolcha…

…in-2.8

prevent ROS generated messages linking

UseOROCOS-RTT.cmake

@@ -982,7 +982,14 @@ Cflags: -I\${includedir} \@PC_EXTRA_INCLUDE_DIRS\@
     if(${PROJECT_NAME}_EXPORTED_LIBRARY_DIRS)
       list(REMOVE_DUPLICATES ${PROJECT_NAME}_EXPORTED_LIBRARY_DIRS)
     endif()
-
+
+    if(ORO_USE_CATKIN)
+        if(${PROJECT_NAME}_EXPORTED_LIBRARIES)
+                list(REMOVE_ITEM ${PROJECT_NAME}_EXPORTED_LIBRARIES ${PROJECT_NAME}_generate_messages_cpp)
+                list(REMOVE_ITEM ${PROJECT_NAME}_EXPORTED_LIBRARIES ${PROJECT_NAME}_generate_messages_lisp)
+                list(REMOVE_ITEM ${PROJECT_NAME}_EXPORTED_LIBRARIES ${PROJECT_NAME}_generate_messages_py)
+        endif()
+    endif()
     # Store a list of exported targets, libraries and include directories on the cache so that other packages within the same workspace can use them.
     set(${PC_NAME}_OROCOS_PACKAGE True CACHE INTERNAL "Mark ${PC_NAME} package as an Orocos package built in this workspace")
     if(${PROJECT_NAME}_EXPORTED_TARGETS)