5.6. Linux-5.2.8 API Headers

#### Linux From Scratch - Version 9.0

### Chapter 5. Constructing a Temporary System

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# 5.6. Linux-5.2.8 API Headers

The Linux API Headers (in linux-5.2.8.tar.xz) expose the kernel's API for use by Glibc.

Approximate build time: 0.1 SBU
Required disk space: 960 MB

## 5.6.1. Installation of Linux API Headers

The Linux kernel needs to expose an Application Programming Interface (API) for the system's C library (Glibc in LFS) to use. This is done by way of sanitizing various C header files that are shipped in the Linux kernel source tarball.

Make sure there are no stale files embedded in the package:

    make mrproper

Now extract the user-visible kernel headers from the source. They are placed in an intermediate local directory and copied to the needed location because the extraction process removes any existing files in the target directory.

    make INSTALL_HDR_PATH=dest headers_install
    cp -rv dest/include/* /tools/include

Details on this package are located in Section 6.7.2, “Contents of Linux API Headers.”

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