Installed headers: /usr/include/{asm,linux}/*.h
The Linux-Headers expose the kernel's API for use by Glibc.
The Linux kernel needs to expose an Application Programming Interface (API) for the system's C library (Glibc in LFS) to utilize. This is done by way of sanitizing various C header files that are shipped in the Linux kernel source tarball.
Install the header files:
make mrproper make headers_check make INSTALL_HDR_PATH=/usr headers_install
Ensure that all the headers are owned by root:
chown -Rv root:root /usr/include/{asm,linux}Make sure the users can read the headers:
find /usr/include/{asm,linux} -type d -exec chmod -v 755 {} \;
find /usr/include/{asm,linux} -type f -exec chmod -v 644 {} \;