6.8.2. Contents of Linux API Headers
Installed headers:
/usr/include/{asm,linux}/*.h
The Linux API Headers expose the kernel's API for use by libc.
User Notes: http://wiki.linuxfromscratch.org/hlfs/wiki/linux-kernel
The Linux kernel needs to expose an Application Programming Interface (API) for the system's C library to utilize. This is done by way of sanitizing various C header files that are shipped in the Linux kernel source tarball.
This patch modifies the asm-i386/unistd.h header to use position independent assembly code if the compiler defines __PIC__. This is needed so that software which uses this header will be PIC. This header was deemed obsolete and was removed from the 2.6.19 series Linux kernel, so this issue will never be corrected upstream. Apply this patch with the following command:
patch --no-backup-if-mismatch -Np1 -i \
../linux-2.4.34.5-unistd_x86_PIC-1.patch
The meaning of the command option:
--no-backup-if-mismatch
The option tells patch not to create
backup files so that we do not copy them to /tools/include when we install the kernel
headers in the next step.
Install the header files:
make mrproper make include/linux/version.h make symlinks cp -vHR include/asm /usr/include cp -vR include/asm-generic /usr/include cp -vR include/linux /usr/include touch /usr/include/linux/autoconf.h