2.7.1 Compiling a kernel from non-Debian source
One has to understand the Debian policy with respect to headers.
The Debian C libraries are built with the most recent stable
releases of the kernel headers.
For example, the Debian-1.2 release used version 5.4.13 of the headers. This
practice contrasts with the Linux kernel source packages distributed at all
Linux FTP archive sites, which use even more recent versions of the headers.
The kernel headers distributed with the kernel source are located in
/usr/include/linux/include/.
If you need to compile a program with kernel headers that are newer than those
provided by libc6-dev, then you must add
-I/usr/src/linux/include/ to your command line when compiling.
This came up at one point, for example, with the packaging of the automounter
daemon (amd). When new kernels changed some internals dealing
with NFS, amd needed to know about them. This required the
inclusion of the latest kernel headers.
