I can build rpm, but they have debug symbols, how to handle this?

Hi,
did my first rpm building, and it works.

but the problem is that the binaries/libraries in the package contain debug symbols,
this happens also with original openSUSE packages which I rebuild, (did this just for test and to see)

my question is therefore, how do I handle this?
I think it is not the right way to make a install-/strip or similar in the build script,
so the better way would possible be building an extra debug rpm.
but how does this work?