How to build installed packages using cmake? [closed]

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Hello, I recently installed ROS drivers for my LMS151 laser scanner and ax2550 roboteq motor controller using the lines:

sudo apt-get install ros-hydro-lms1xx sudo apt-get install ros-hydro-ax2550

Both files downloaded in the same format, and now I'm pretty sure I have to build them somehow using cmake, but am not sure exactly how. Inside my /opt/ros/hydro/share folder, I have an lms1xx and ax2550 folder, both of which contain a package.xml, and a cmake directory containing (respectively) lms1xxCOnfig.cmake, lms1xxConfig-version.cmake, ax2550Config.cmake, ax2550Config.cmake, ax2550-msg-extras.cmake, ax2550-msg-paths.cmake.

So it looks to me like I somehow have to cmake the cmake directory in each of these packages respectively, but I cannot figure out exactly how to do that. When I try "cmake cmake/," ubuntu tells me the directory does not contain a CMakeLists.txt, and when I navigate inside the cmake pacakge and try "cmake <specific cmake="" file="">," it tells me that that file can't be cmade because it isn't a directory. I guess I'm somehow misunderstanding the usage of cmake, can anyone help me out?

I'm running ros hydro on ubuntu 12.04.

Thanks!