[CMake] Install selected|group of targets

[Joakim Hove]

Hello;

I have a quite large CMake project consisting of many libraries and
executable programs. Schematically my codebase is organised as:



root/CMakeLists.txt
root/package1/CMakeLists.txt
root/package1/lib/CMakeLists.txt
root/package1/app/CMakeLists.txt
root/package2/CMakeLists.txt
root/package2/lib/CMakeLists.txt
root/package2/app/CMakeLists.txt
....

The CMakeLists.txt files in each of the lib directories contain

add_library( pack1 ...)

And in the app directories there are

add_executable(app1 ...)
add_executable(app2 ...)

Now I would like to be able to install a group of libraries / executables
as e.g.

make install package2

To install all the libraries and binaries under the package2/ subdirectory.
The documentation says that something like this should be possible through
the use of COMPONENTS - but just how is less than clear for me?

Any tips?

Joakim
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