Migrating from rosbuild to catkin: <export> <cpp> </export> equivalent

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Just to add to this: if you need to export actual C(XX)_FLAGS (so not just include paths), that should be done using the CFG_EXTRAS argument to catkin_package(..).

Yes thats exactly what I want to do. My flags to export is -std=c++0x. The CFG_EXTRAS is quite difficult to understand, so I have to create a .cmake file that has set (C(XX)_FLAGS ...) then export the whole script?

Yes. You create a your_pkg-extras.cmake in a cmake/ subdir, then add the CFG_EXTRAS to your catkin_package(..) line. For setting CXX_FLAGS I'd use set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x"), as you want to append, not overwrite.

I tried catkin_package(.. CFG_EXTRAS {my_cmake}.cmake.develspace.in) but {my_cmake} file was not build into devel/{my_package}/cmake/{my_package} directory, what has gone wrong? should I replace the name of the cmake file?

Adding a single option to the CXX_FLAGS does not really require using a templated extras file. Just make it a regular -extras.cmake, without the .develspace.in. Also: as far as I know, the extras file doesn't end up in devel. Only in install.

Its ok to use -extras.cmake , but I want my file to end up in devel , so other package can see and include it also, is there a way to do it?

so other package can see and include it also

You don't need to include it in other pkgs. catkin takes care of that. It's all auto-magic.