Where can I download pfvar.h?

I'm trying to compile a source code and it needs this header file 'pfvar.h'

From where can I get it

I have Ubuntu 12.04 LTS

Thanks in advance

2 Answers

[UPDATE]

You're trying to compile a source for the wrong architecture, I found pfvar.h in the kFreeBSD headers for development. Basically you need a BSD-like system to build your program.

net/pfvar.h sounds like a kernel header, try to install the header files for your current kernel:

sudo apt-get install linux-headers-generic

What are you trying from source? Usually when I have this kind of problem, it's because I don't have a -dev package installed for one of the dependencies. For example if XnetX was a dependency of a program I was trying to compile, I would need the XnetX-dev package installed from the software center. Doing this will download the source files for that package thereby allowing you to use the header and src files.