distributable:
  url: https://cdn.kernel.org/pub/linux/kernel/v{{version.major}}.x/linux-{{version}}.tar.xz
  strip-components: 1

versions:
  # FIXME: source for _all_ mainline versions
  url: "https://cdn.kernel.org/pub/linux/kernel/v5.x/"
  match: /linux-\d+\.\d+\.\d+\.tar\.xz/
  strip:
    - /linux-/
    - /\.tar\.xz/

platforms: linux

build:
  dependencies:
    gnu.org/sed: '*'
  script: |
    make headers
    mkdir -p "{{prefix}}"
    cp -a usr/include "{{prefix}}/"

test:
  script:
    #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + ((c) > 255 ? 255 : (c)))
    - run:
        PATCH=$(test {{version.patch}} -gt 255
          && echo 255
          || echo {{version.patch}})
    - run:
        V=$(({{version.major}} * 65536
          + {{version.minor}} * 256
          + $PATCH))
    - grep "LINUX_VERSION_CODE $V" "{{prefix}}/include/linux/version.h"