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# Maintainer (Arch): Maxime Gauduin <alucryd@gmail.com>
# Contributor (Arch): mortzu <me@mortzu.de>
# Contributor (Arch): fnord0 <fnord0@riseup.net>
# Contributor (Hyperbola): André Silva <emulatorman@hyperbola.info>
# Contributor (Hyperbola): Márcio Silva <coadde@hyperbola.info>
# Maintainer: Omar Vega Ramos <ovruni@gnu.org.pe>
# Contributor: Luke Shumaker <lukeshu@sbcglobal.net>

_kernelname=

if [[ ${_kernelname} == "" ]]; then
  _basekernel=4.14
  _archrel=90
  _parabolarel=1
elif [[ ${_kernelname} == -lts ]]; then
  _basekernel=4.9
  _archrel=49
  _parabolarel=1
fi

pkgbase=acpi_call
pkgver=1.1.0
pkgrel=${_archrel}.parabola${_parabolarel}.basekernel${_basekernel}
_extramodules=extramodules-${_basekernel}${_kernelname}
pkgdesc="A linux kernel module that enables calls to ACPI methods through /proc/acpi/call (built for the linux-libre${_kernelname} kernel package)"
arch=('i686' 'x86_64' 'armv7h')
url="http://github.com/mkottman/${pkgbase}"
license=('GPL')

# Generic (you shouldn't have to modify any of these variables)
_toohigh=$(IFS=. read a b <<<$_basekernel; echo $a.$((b+1)))
makedepends=("linux-libre${_kernelname}-headers>=${_basekernel}" "linux-libre${_kernelname}-headers<${_toohigh}" "linux-libre${_kernelname}>=${_basekernel}" "linux-libre${_kernelname}<${_toohigh}")
makedepends+=('libelf')

if [[ ${_kernelname} != "" ]]; then
  provides=("${pkgbase}")
fi

source=("${pkgbase}-${pkgver}.tar.gz::${url}/archive/v${pkgver}.tar.gz"
        'dkms.conf')
sha256sums=('d0d14b42944282724fca76f57d598eed794ef97448f387d1c489d85ad813f2f0'
            '32e6ea6523b13132c6c7838bba7fbf3d040ba2d35a892c2c356245612720df8a')

prepare() {
  cd "${pkgbase}-${pkgver}"

  if [[ ${_basekernel} > 3.16 ]]; then
    # Fix build with Linux-libre 3.17-gnu
    sed -i 's|acpi/acpi.h|linux/acpi.h|' acpi_call.c
  fi

  if [[ ${_basekernel} > 4.11 ]]; then
    # Fix build with Linux-libre 4.12-gnu
    sed -i 's|asm/uaccess.h|linux/uaccess.h|' acpi_call.c
  fi
}

build() {
  cd "${pkgbase}-${pkgver}"
  make KVERSION="$(cat /usr/lib/modules/$_extramodules/version)"
}

_package() {
  depends=("linux-libre${_kernelname}>=${_basekernel}" "linux-libre${_kernelname}<${_toohigh}")
  replaces=("${pkgbase}-libre${_kernelname}" "${pkgbase}-parabola${_kernelname}")
  [[ -n ${_kernelname} ]] && replaces+=("${_pkgname}${_kernelname}-parabola")
  conflicts=("${pkgbase}-libre${_kernelname}" "${pkgbase}-parabola${_kernelname}")
  [[ -n ${_kernelname} ]] && conflicts+=("${_pkgname}${_kernelname}-parabola")

  cd $pkgbase-$pkgver

  # Actually install
  install -Dt "$pkgdir/usr/lib/modules/$_extramodules" -m644 acpi_call.ko
  find "$pkgdir" -name '*.ko' -exec gzip -n {} +

  echo acpi_call | install -Dm644 /dev/stdin "$pkgdir/usr/lib/modules-load.d/acpi_call${_kernelname}.conf"

  mkdir -p "$pkgdir/usr/share/acpi_call${_kernelname}"
  cp -t "$pkgdir/usr/share/acpi_call" -dr --no-preserve=ownership examples support
}

if [[ ${_kernelname} == "" ]]; then
  _package-dkms() {
    depends=(dkms)
    provides=("acpi_call=$pkgver-$pkgrel")
    conflicts=(acpi_call)

    cd $pkgbase-$pkgver

    # Actually install
    install -Dt "$pkgdir/usr/src/$pkgbase-$pkgver" -m644 Makefile acpi_call.c ../dkms.conf

    echo acpi_call | install -Dm644 /dev/stdin "$pkgdir/usr/lib/modules-load.d/acpi_call.conf"

    mkdir -p "$pkgdir/usr/share/acpi_call"
    cp -t "$pkgdir/usr/share/acpi_call" -dr --no-preserve=ownership examples support
  }

  pkgname=("${pkgbase}${_kernelname}" "${pkgbase}${_kernelname}-dkms")
else
  pkgname=("${pkgbase}${_kernelname}")
fi

for _p in ${pkgname[@]}; do
  eval "package_${_p}() {
    $(declare -f "_package${_p#${pkgbase}${_kernelname}}")
    _package${_p#${pkgbase}${_kernelname}}
  }"
done

# vim:set ts=2 sw=2 et: