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This is a behavior of CMake, and is not something we can control in catkin_make. However, if you use catkin_make_isolated, it will detect that this has changed from a previous run and automatically add --force-cmake.

I think you're right though, a hint in the wiki about needing to make sure CMake runs again after passing a new install prefix to it would be a good idea. Please feel free to edit the tutorial and add the note. You can add a note in the wiki with something like this:

{{{#!wiki blue/solid
your note
}}}

EDIT: I agree with @Dirk Thomas's answer, this should be handled by catkin_make automatically.

This is a behavior of CMake, and is not something we can control in catkin_make. However, if you use catkin_make_isolated, it will detect that this has changed from a previous run and automatically add --force-cmake.

I think you're right though, a hint in the wiki about needing to make sure CMake runs again after passing a new install prefix to it would be a good idea. Please feel free to edit the tutorial and add the note. You can add a note in the wiki with something like this:

{{{#!wiki blue/solid
your note
}}}