Nixpkgs version

• Unstable (25.11)

Describe the bug

Cmake build error stating issue with cmake version

Steps to reproduce

install package from unstable repo.

Expected behaviour

package builds properly

Screenshots

No response

Relevant log output

CMake Error at CMakeLists.txt:3 (cmake_minimum_required):
  Compatibility with CMake < 3.5 has been removed from CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.

  Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.

Additional context

No response

System metadata

 - system: `"x86_64-linux"`
 - host os: `Linux 6.12.51, NixOS, 25.11 (Xantusia), 25.11pre873798.c9b6fb798541`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.31.2`
 - channels(root): `"nixos"`
 - nixpkgs: `/nix/store/wbsaxnpxlhlnz7vb49sxyd1s4jcxyphi-nixos/nixos`

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• I assert that this is a bug and not a support request.
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