How does ROS build system work?

asked 2012-03-07 10:54:20 -0500

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Hi, I have been using ROS for quite sometime and have installed many packages of my own and from the sources available. But i would like to know how the building happens. What rosmake actually does? cmake followed by make? Why is manifest.xml very important. I might have missed a tutorial if available on this. Could someone point to it if available or give some detail about the building process here.

Thanks, Karthik

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answered 2012-03-07 12:45:47 -0500

tfoote

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Rosmake basically calls make recursively. This answer talks about the difference between rosmake and make: http://answers.ros.org/question/10614/rosmake-vs-make

In rosbuild the Makefile invokes CMake, and uses rospack to get the package information from the manifest.xml files.

And you should read about the manifest.xml on the wiki