kfreebsd-kernel-headers software package provides kFreeBSD headers for development, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kfreebsd-kernel-headers
kfreebsd-kernel-headers is installed in your system.
Make ensure the kfreebsd-kernel-headers package were installed using the commands given below,
$ sudo dpkg-query -l | grep kfreebsd-kernel-headers *
You will get with kfreebsd-kernel-headers package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Kernels |
| Package | kfreebsd-kernel-headers |
| Version | 0.83 |
| Description | kFreeBSD headers for development |
| Sub Section | Kernels |