core/linux-api-headers/PKGBUILD

# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc

pkgname=linux-api-headers
pkgver=4.18.3
pkgrel=1
pkgdesc="Kernel headers sanitized for use in userspace"
arch=('x86_64')
url="http://www.gnu.org/software/libc"
license=('GPL2')
source=(https://www.kernel.org/pub/linux/kernel/v4.x/linux-${pkgver}.tar.{xz,sign})
md5sums=('b5aafaf94f7631fd48574e22a74eaa5a'
         'SKIP')
validpgpkeys=('ABAF11C65A2970B130ABE3C479BE3E4300411886'   # Linus Torvalds
              '647F28654894E3BD457199BE38DBBDC86092693E')  # Greg Kroah-Hartman

build() {
  cd linux-$pkgver

  make mrproper
  make headers_check
}

package() {
  cd linux-$pkgver
  make INSTALL_HDR_PATH="$pkgdir/usr" headers_install

  # use headers from libdrm
  rm -r "$pkgdir/usr/include/drm"
  
  # clean-up unnecessary files generated during install
  find "$pkgdir" \( -name .install -o -name ..install.cmd \) -delete
}