[cmake-developers] Integrate fixdep for kconfig

[Brad King]

On 09/24/2014 07:18 AM, Sam H. wrote:
> I would like to use kconfig from Linux for my project settings.
> So I integrate fixdep tools into CMake for parsing CONFIG_xxx key words
> and set proper dependency of files that are generated by kconfig.

For those of us unfamiliar with kconfig/fixdep, please provide a
high level explanation of how they work and why CMake dependency
scanning needs to be modified.

> However, here come some issues.
> 1. The codes from fixdep is declared as GPL. But CMake use BSD.
> 2. fixed use mmap(). But this API is not support well on Windows.

Both of these need to be addressed before a patch would be accepted.
We cannot link GPLed code, and we need a portable implementation.

Thanks,
-Brad