[Bug] CMake issues on Debian 11 when building zenoh-cpp

[guill-delacourt]

Describe the bug

I'm trying to add zenoh-cpp 1.8.0 to a Debian 11 docker image for continuous integration purposes, and I encounter a CMake error when building zenoh-cpp.

I was able to build and install zenoh-c and zenoh-pico before in that image.

Debian 11 has CMake 3.18.4, and zenoh-cpp indicates it needs at least CMake 3.16, so I expect to be able to build zenoh-cpp on that system.
I didn't encounter problems when building for Debian 12 (CMake 3.25), Ubuntu 22.04 (CMake 3.22), or Almalinux 8 (CMake 3.26).

I've attached the error trace.
zenoh-cpp-error.txt

To reproduce

1. Start with a Debian 11 docker image.
2. Compile and install zenoh-c and zenoh-pico
3. Launch the CMake command for zenoh-cpp
4. See error in attached file

System info

• Platform: Debian 11 (docker image)
• CPU : N/A
• zenoh-cpp : 1.8.0

[DenisBiryukov91]

Sorry, it seems TARGET_RUNTIME_DLLS generator expression that we use requires at least cmake 3.21, we will update the requirement.