# Maintainer: Christos Nouskas <nous at archlinux dot us>
# PKGBUILD assembled from kernel26
# Some lines from  kernel26-bfs and kernel26-ck
# Credits to respective maintainers
_major=3
_minor=8
#_patchlevel=0
#_subversion=1
_basekernel=${_major}.${_minor}
_srcname=linux-${_major}.${_minor}
pkgbase=linux-pf
_pfrel=1
_kernelname=-pf
_pfpatchhome="http://pf.natalenko.name/sources/${_basekernel}/"
_pfpatchname="patch-${_basekernel}.${_pfrel}${_kernelname}"

### PATCH AND BUILD OPTIONS
# taken from graysky linux-ck see: https://aur.archlinux.org/packages/linux-ck
# Set these variables to ANYTHING (yes or no or 1 or 0 or "I like icecream") to enable them
#

_NUMA_off=yes		# Disable NUMA in kernel config

### DOCS
# Starting with the 3.6.6-3 release, this package ships with the kernel-3x-gcc47-x.patch.
# This allows users an expanded scope of CPU specific options.
# Consult the following resources to understand which option is right for you application:
#
# http://en.gentoo-wiki.com/wiki/Safe_Cflags/Intel
# http://en.gentoo-wiki.com/wiki/Safe_Cflags/AMD
# http://www.linuxforge.net/docs/linux/linux-gcc.php 
# http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html

# DETAILS FOR using 'make localmodconfig'
# As of mainline 2.6.32, running with this option will only build the modules that you currently have
# probed in your system VASTLY reducing the number of modules built and the build time to do it.
#
# WARNING - make CERTAIN that all modules are modprobed BEFORE you begin making the pkg!
#
# To keep track of which modules are needed for your specific system/hardware, give my module_db script
# a try: http://aur.archlinux.org/packages.php?ID=41689  Note that if you use my script, this PKGBUILD 
# will auto run the 'sudo modprobed_db reload' for you to probe all the modules you have logged!
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed_db

# DETAILS FOR running kernel's config
# Enabling this option will use the .config of the RUNNING kernel rather than the ARCH defaults.
# Useful when the package gets updated and you already went through the trouble of customizing your
# config options.  NOT recommended when a new kernel is released, but again, convenient for package bumps.

# DRTAILS FOR _NUMA_off=yes
# Since 99.9% of users do not have multiple CPUs but do have multiple cores in one CPU
# see, https://bugs.archlinux.org/task/31187

pkgname=('linux-pf')
true && pkgname=('linux-pf' 'linux-pf-headers')
pkgver=${_basekernel}.${_pfrel}
pkgrel=2
arch=('i686' 'x86_64')
url="http://pf.natalenko.name/"
license=('GPL2')
options=('!strip')
makedepends=('git' 'xmlto' 'docbook-xsl' 'xz')
source=("ftp://www.kernel.org/pub/linux/kernel/v${_major}.x/linux-${_basekernel}.tar.xz"
	'config' 'config.x86_64'		# the main kernel config files
	'linux-pf.preset'			# standard config files for mkinitcpio ramdisk
	'logo_linux_clut224.ppm.bz2'		#
	'logo_linux_mono.pbm.bz2'		# the Arch Linux boot logos
	'logo_linux_vga16.ppm.bz2'		#
	'change-default-console-loglevel.patch'
	'http://repo-ck.com/source/gcc_patch/kernel-38-gcc47-1.patch.gz'
	"${_pfpatchhome}${_pfpatchname}.bz2"	# the -pf patchset
 )

_aufs3git="git://aufs.git.sourceforge.net/gitroot/aufs/aufs3-standalone.git"
_aufs3name=aufs3
# '

build() {
  cd "${srcdir}/linux-${_basekernel}"
  # This is for me, to test the PKGBUILD
if [[ $NOEXTRACT = "0" ]]; then

     # Arch linux logo
     msg "Replacing penguins with arches"
     bzip2 -dk ${startdir}/logo_linux_*.bz2
     mv -f ${startdir}/logo_linux_*.p?m drivers/video/logo/
     msg "Applying pf-kernel patch"
     patch -Np1 < ${srcdir}/${_pfpatchname}
     msg "Fetching and applying aufs3 patches"
     git clone ${_aufs3git} ${_aufs3name}
     cd ${_aufs3name}
     git checkout origin/aufs${_basekernel} || _aufs3checkout=KRAKRA
     if [[ ${_aufs3checkout} = "KRAKRA" ]]; then
	echo
        msg "AUFS3 not yet ported to version ${_basekernel}!"
        msg "Skipping related patches."
	echo
	cd ..
     else
#        mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include"
#        mv include/linux/Kbuild "${pkgdir}/usr/src/linux-${_kernver}/include/"
	rm include/uapi/linux/Kbuild
	cd ..
	cp -a ${_aufs3name}/{Documentation,fs,include} ${srcdir}/linux-${_basekernel}/
	msg "Patching aufs3"
	for _patch in ${_aufs3name}/*.patch; do
	    patch -Np1 < ${_patch} || _aufs3fail=KRAKRA
        done
        if [[ ${_aufs3fail} = "KRAKRA" ]]; then
	    echo
    	    msg "Not all aufs3 patches applied correctly. Ignore this if you won't use AUFS."
    	    msg "Otherwise, press CTRL-C now and fix manually"
    	    echo
        fi
    fi

  # Interactive governor patch
  # broken for now
  #   msg "Interactice CPU governor patch"
  #   mv ${srcdir}/gist*/gistfile1.diff ${srcdir}
  #   patch -Np1 < ${srcdir}/gistfile1.diff

  # linux-ARCH patches

  # add latest fixes from stable queue, if needed
  # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
  
  
  # set DEFAULT_CONSOLE_LOGLEVEL to 4 (same value as the 'quiet' kernel param)
  # remove this when a Kconfig knob is made available by upstream
  # (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
  patch -Np1 -i "${srcdir}/change-default-console-loglevel.patch"



  # end linux-ARCH patches




  # added gcc 4.7.1 support for Kconfig and menuconfig
  zcat "${srcdir}/kernel-38-gcc47-1.patch.gz" | patch -Np1
   if [ "$CARCH" = "x86_64" ]; then
	cat "${startdir}/config.x86_64" >| .config
   else
	cat "${startdir}/config" >| .config
   fi
fi

#----------------------------------------
if [[ "$_BATCH" != "y" ]]; then		# for batch building
  echo
  echo "======================================================="
  msg "You might be prompted below for some config options"
  echo "======================================================="
  echo
  msg "Hit <Y> to use your running kernel's config"
  echo "    (needs IKCONFIG and IKCONFIG_PROC)"
  msg "Hit <L> to run 'make localmodconfig'"
  msg "Hit <N> (or just <ENTER>) to build an all-inclusive kernel like stock -ARCH"
  echo "    (warning: it can take a looong time)"
  echo
  read answer
  shopt -s nocasematch
  if [[ "$answer" = "y" ]]; then
     if [[ -s /proc/config.gz ]]; then
	msg "Extracting config from /proc/config.gz..."
	zcat /proc/config.gz >| ./.config
     else
	msg "running 'sudo modprobe configs'"
	sudo modprobe configs
        if [[ -s /proc/config.gz ]]; then
	    msg "Extracting config from /proc/config.gz..."
	    zcat /proc/config.gz >| ./.config
	else
	    msg "You kernel was not compiled with IKCONFIG_PROC."
	    msg "Attempting to run /usr/bin/modprobed_db recall from modprobe_db..."
	    if [ -e /usr/bin/modprobed_db ]; then
		sudo /usr/bin/modprobed_db recall
	    else
		msg "modprobed_db not installed, running make localmodconfig instead..."
		make localmodconfig
	    fi
        fi
     fi
  elif [[ "$answer" = "l" ]]; then
     # Copied from kernel26-ck's PKGBUILD
     msg "Attempting to run /usr/bin/reload_database with sudo from modprobe_db..."
     if [ -e /usr/bin/modprobed_db ]; then
	sudo /usr/bin/modprobed_db recall
     fi
     msg "Running 'make localmodconfig'..."
     make localmodconfig
  else
     msg "Using stock ARCH kernel .config (with BFS, BFQ and TuxOnIce enabled)."
  fi

  # Make some good use of MAKEFLAGS
  # MAKEFLAGS=`grep -v '#' /etc/makepkg.conf | grep MAKEFLAGS= | sed s/MAKEFLAGS=// | sed s/\"//g`

  # make prepare

  # Options for additional configuration
  echo
  msg "Kernel configuration options before build:"
  echo "    <M> make menuconfig (console menu)"
  echo "    <N> make nconfig (newer alternative to menuconfig)"
  echo "    <G> make gconfig (needs gtk)"
  echo "    <X> make xconfig (needs qt)"
  echo "    <O> make oldconfig"
  echo "    <L> make localyesconfig"
  echo "    <ENTER> to skip configuration and use stock -ARCH defaults"
  read answer
  case "$answer" in
   m) make menuconfig
      ;;
   g) make gconfig
      ;;
   x) make xconfig
      ;;
   n) make nconfig
      ;;
   o) make oldconfig
      ;;
   l) make localyesconfig
      ;;
   default)
      ;;
  esac
  cp -v .config ${startdir}/config.local
  CPU=`egrep "MK8=y|MCORE2=y|MPSC=y|MATOM=y|MPENTIUMII=y|MPENTIUMIII=y|MPENTIUMM=y|MPENTIUM4=y|MK7=y|CONFIG_GENERIC_CPU=y|M686=y|MBARCELONA=y|MBOBCAT=y|MBULLDOZER=y|MPILEDRIVER=y|MCOREI7=y|MCOREI7AVX=y|MCOREAVXI=y|MCOREAVX2=y" ./.config`
  CPU=`sed -e "s/CONFIG_M\(.*\)=y/\1/" <<<$CPU`
  CPU=`sed -e "s/CONFIG_GENERIC_CPU=y/GENERIC/" <<<$CPU`
  CPU=`sed -e "s/^686$/GENERIC/" <<<$CPU`
  cp -f .config ${startdir}/config.$CPU-$CARCH

  # Give option to rename package according to CPU
  echo
  if [[ "$CPU" = "GENERIC" ]]; then
    msg "Hit <P>     :  to include the patchlevel number in kernver"
    msg "               (i.e. linux-pf-${_basekernel}.${_pfrel})"
    msg "Hit <ENTER> :  to remove the patchlevel number from kernver (default)"
    msg "               (i.e. linux-pf-${_basekernel})"
    read answer
    shopt -s nocasematch
    if [[ "$answer" = "p" ]]; then
       export _SUBLEVEL=y
    fi
  else
    lcpu=`tr '[:upper:]' '[:lower:]' <<< $CPU`
    lcpu=`sed -e "s/entium//" <<<$lcpu`    
    echo "=============================================================="
    msg "An non-generic CPU was selected for this kernel."
    echo
    msg "Hit <G>     :  to create a generic package named linux-pf"
    msg "Hit <ENTER> :  to create a package named after the selected CPU"
    msg "               (linux-pf-${lcpu} - recommended default)"
    echo
    msg "This option affects ONLY the package name. Whether or not the"
    msg "kernel is optimized was determined at the previous config step."
    echo "=============================================================="
    read answer
    shopt -s nocasematch
    if [[ "$answer" != "g" ]]; then
       export _PKGOPT=y
    fi
    msg "Hit <P>     :  to include the patchlevel number in kernver"
    if [[ ${_PKGOPT} != "y" ]]; then
       msg "               (i.e. linux-pf-${_basekernel}.${_pfrel})"
    else
       msg "               (i.e. linux-pf-${lcpu}-${_basekernel}.${_pfrel})"
    fi
    msg "Hit <ENTER> :  to remove the patchlevel number from kernver (default)"
    if [[ ${_PKGOPT} != "y" ]]; then
       msg "               (i.e. linux-pf-${_basekernel})"
    else
       msg "               (i.e. linux-pf-${lcpu}-${_basekernel})"
    fi
    read answer
    shopt -s nocasematch
    if [[ "$answer" = "p" ]]; then
       export _SUBLEVEL=y
    fi
  fi
fi	# batch check ends here
export CPU
#----------------------------------------

  # Strip config of uneeded localversion
  if [ "${_kernelname}" != "" ]; then
     sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"\"|g" ./.config
  fi

  # Set EXTRAVERSION to -pf
  sed -i "s/EXTRAVERSION = -${_pfrel}/EXTRAVERSION = ${_kernelname}/" Makefile
  _arch=$CARCH

  # Remove the sublevel from Makefile
  # This ensures our kernel version is always 3.X-pf
  # This way, minor kernel updates will not break external modules
  if [ "${_SUBLEVEL}" != "y" ]; then
     sed -ri 's|^(SUBLEVEL =).*|\1|' Makefile
  fi
 
  # disable NUMA since 99.9% of users do not have multiple CPUs but do have multiple cores in one CPU
  # see, https://bugs.archlinux.org/task/31187
  if [ -n "$_NUMA_off" ]; then
    if [ "${CARCH}" = "x86_64" ]; then
     sed -i -e 's/CONFIG_NUMA=y/# CONFIG_NUMA is not set/' \
      -i -e '/CONFIG_AMD_NUMA=y/d' \
      -i -e '/CONFIG_X86_64_ACPI_NUMA=y/d' \
      -i -e '/CONFIG_NODES_SPAN_OTHER_NODES=y/d' \
      -i -e '/# CONFIG_NUMA_EMU is not set/d' \
      -i -e '/CONFIG_NODES_SHIFT=6/d' \
      -i -e '/CONFIG_NEED_MULTIPLE_NODES=y/d' \
      -i -e '/CONFIG_USE_PERCPU_NUMA_NODE_ID=y/d' \
      -i -e '/CONFIG_ACPI_NUMA=y/d' ./.config
    fi
  fi

  # Don't run depmod on 'make install'. We'll do this ourselves in packaging
  sed -i '2iexit 0' scripts/depmod.sh

  # If the following is set, stop right there. We only need the headers for
  # dependent drivers' compiling (nvidia, virtualbox etc)
  [[ ${_NOBUILD} ]] && exit 0

  # get kernel version
  make prepare

  # rewrite configuration
  yes "" | make config >/dev/null


  # Build
  # Want extreme and non-sensical optimization? Uncomment the following line!
  # export KCFLAGS="-march=native -Ofast"
  make ${MAKEFLAGS} LOCALVERSION= bzImage modules
}

package_linux-pf() {
 _pkgdesc="Linux kernel and modules with the pf-kernel patch [-ck patchset (BFS included), TuxOnIce, BFQ] and aufs3."
 pkgdesc=${_pkgdesc}
 groups=('base')
 backup=(etc/mkinitcpio.d/${pkgbase}.preset)
 depends=('coreutils' 'linux-firmware' 'kmod>=9-2' 'mkinitcpio>=0.7')
 optdepends=('linux-docs: Kernel hackers manual - HTML documentation that comes with the Linux kernel.'
	    'crda: to set the correct wireless channels of your country'
	    'pm-utils: utilities and scripts for suspend and hibernate power management'
	    'tuxonice-userui: TuxOnIce userspace user interface'
	    'hibernate-script: set of scripts for managing TuxOnIce, hibernation and suspend to RAM'
	    'nvidia-pf: NVIDIA drivers for linux-pf'
	    'nvidia-beta-all: NVIDIA drivers for all installed kernels'
	    'modprobed_db: Keeps track of EVERY kernel module that has ever been probed. Useful for make localmodconfig.')
 #provides=(${pkgbase}=${_basekernel} 'aufs3')	# for $pkgname-optimized
 provides=(${pkgbase}=${_basekernel} 'aufs3')
 # below 'provides' is for when you have no other kernel (which is a bad idea anyway)
 # provides=(${pkgbase}=${_basekernel} 'linux=${pkgver}' 'aufs3')
 # If generic build, then conflict with all optimized ones
 conflicts=('linux-pf-core2' 'linux-pf-k8' 'linux-pf-psc' 'linux-pf-atom'
	    'linux-pf-k7' 'linux-pf-p3' 'linux-pf-pm' 'linux-pf-p4'
	    'linux-pf-headers-core2' 'linux-pf-headers-k8' 'linux-pf-headers-psc'
	    'linux-pf-headers-atom' 'linux-pf-headers-k7' 'linux-pf-headers-p3'
	    'linux-pf-headers-pm' 'linux-pf-headers-p4'
	    'kernel26-pf-core2' 'kernel26-pf-k8' 'kernel26-pf-psc' 'kernel26-pf-atom'
	    'kernel26-pf-k7' 'kernel26-pf-p3' 'kernel26-pf-pm' 'kernel26-pf-p4'
	    'linux-pf-bobcat' 'linux-pf-barcelona' 'linux-pf-bulldozer' 
	    'linux-pf-pilediver' 'linux-pf-nehalem' 'linux-pf-ivybridge' 'linux-pf-sandybridge' 'linux-pf-haswell' 
	    'linux-pf-headers-bobcat' 'linux-pf-headers-barcelona' 'linux-pf-headers-bulldozer'
	    'linux-pf-headers-pilediver' 'linux-pf-headers-nehalem' 'linux-pf-headers-ivybridge' 'linux-pf-headers-sandybridge' 'linux-pf-headers-haswell' )
 replaces=('kernel26-pf' 'aufs3')
 backup=("etc/mkinitcpio.d/${pkgbase}.preset")
 install='linux-pf.install'

 #'
  cd "${srcdir}/linux-${_basekernel}"

  # Remove undeeded aufs3 git tree
  rm -fr aufs3 2>/dev/null

  # work around the AUR parser
  # This allows building cpu-optimized packages with according package names.
  # Useful for repo maintainers.
  headers="headers"
  pkgnameopt="${pkgbase}"		# this MUST be outside the following 'if'
  if [[ "$_PKGOPT" = "y" ]]; then	# package naming according to optimization
    case $CPU in
     CORE2)
         pkgname="${pkgbase}-core2"
         pkgdesc="${_pkgdesc} Intel Core2 optimized."
         ;;
     K8)
         pkgname="${pkgbase}-k8"
         pkgdesc="${_pkgdesc} AMD K8 optimized."
         ;;
     BARCELONA)
         pkgname="${pkgbase}-barcelona"
         pkgdesc="${_pkgdesc} AMD Barcelona optimized."
	 ;;
     BOBCAT)
	 pkgname="${pkgbase}-bobcat"
	 pkgdesc="${_pkgdesc} AMD Bobcat optimized"
	 ;;
     BULLDOZER)
	 pkgname"${pkgbase}-bulldozer"
	 pkgdesc="${_pkgdesc} AMD Bulldozer optimized"
	 ;;
     PILEDRIVER)
	 pkgname"${pkgbase}-piledriver"
	 pkgdesc="${_pkgdesc} AMD Piledriver optimized"
	 ;;
     PSC)
         pkgname="${pkgbase}-psc"
         pkgdesc="${_pkgdesc} Intel Pentium4/D/Xeon optimized."
         ;;
     ATOM)
         pkgname="${pkgbase}-atom"
         pkgdesc="${_pkgdesc} Intel Atom optimized."
         ;;
     K7)
         pkgname="${pkgbase}-k7"
         pkgdesc="${_pkgdesc} AMD K7 optimized."
         ;;
     PENTIUMII)
         pkgname="${pkgbase}-p2"
         pkgdesc="${_pkgdesc} Intel Pentium2 optimized."
         ;;
     PENTIUMIII)
         pkgname="${pkgbase}-p3"
         pkgdesc="${_pkgdesc} Intel Pentium3 optimized."
         ;;
     PENTIUMM)
         pkgname="${pkgbase}-pm"
         pkgdesc="${_pkgdesc} Intel Pentium-M optimized."
         ;;
     PENTIUM4)
         pkgname="${pkgbase}-p4"
         pkgdesc="${_pkgdesc} Intel Pentium4 optimized."
         ;;
     COREI7)
	 pkgname="${pkgbase}-nehalem "
         pkgdesc="${_pkgdesc} Intel Core Nehalem optimized."
	 ;;
     COREI7AVX)
         pkgname="${pkgbase}-sandybridge"
         pkgdesc="${_pkgdesc} Intel 2nd Gen Core processors including Sandy Bridge."
	 ;;
     COREAVXI)
         pkgname="${pkgbase}-ivybridge"
         pkgdesc="${_pkgdesc} Intel 3rd Gen Core processors including Ivy Bridge."
	 ;;
     COREAVX2)
         pkgname="${pkgbase}-haswell"
         pkgdesc="${_pkgdesc} Intel AVX-2 processors including Haswell."
	 ;;
     default)
  # Note to me: DO NOT EVER REMOVE THIS. It's for the AUR PKGBUILD parser.
         pkgname="${pkgbase}"
         pkgdesc="Linux kernel and modules with the pf-kernel patch [-ck patchset (BFS included), TuxOnIce, BFQ] and aufs3"
         ;;
    esac


  # If optimized build, conflict with generic and other optimized ones

  if [[ "$pkgname" != "$pkgbase" ]]; then
	pkgnameopt="${pkgname}"		# this MUST be inside this if-fi
	pkgname="${pkgbase}"
	echo pkgname $pkgname
	cpuopt=`sed -e "s/linux-pf-//" <<<$pkgnameopt`		# get suffix
	cpuoptdesc=`sed -e "s/${_pkgdesc}//" <<<$pkgdesc`	# get description
	conflicts=(${conflicts[@]/linux-pf-${cpuopt}/})		# remove current
	conflicts=(${conflicts[@]/linux-pf-headers-${cpuopt}/})	# remove current's headers
	export cpuopt cpuoptdesc
  fi

  # second batch check ends here
 fi

 # Pass conflicts array to linux-pf-headers() BEFORE adding generic linux-pf or headers will conflict
 export _conflicts=${conflicts[@]}
 conflicts=('linux-pf' 'kernel26-pf' ${conflicts[@]})	# add generic packages

  echo
  echo "    ========================================"
  msg  "The packages will be named ${pkgnameopt} and"
  if [[ "$cpuopt" ]]; then
       msg  "and ${pkgbase}-${headers}-${cpuopt}"
  else
       msg  "and ${pkgbase}-${headers}"
  fi
  msg  "${pkgdesc}"
  echo "    ========================================"
  echo

 ### package_linux-pf

  cd "${srcdir}/linux-${_basekernel}"

  KARCH=x86

  echo # get kernel version
   _kernver="$(make LOCALVERSION= kernelrelease)"


  ### c/p from linux-ARCH

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot}
  make LOCALVERSION= INSTALL_MOD_PATH="${pkgdir}" modules_install
  cp arch/$KARCH/boot/bzImage "${pkgdir}/boot/vmlinuz-${pkgbase}"

  # add vmlinux
  install -D -m644 vmlinux "${pkgdir}/usr/src/linux-${_kernver}/vmlinux"

  # install fallback mkinitcpio.conf file and preset file for kernel
  install -D -m644 "${srcdir}/linux-pf.preset" "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"

  # set correct depmod command for install
  sed \
    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/" \
    -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/" \
    -i "${startdir}/linux-pf.install"
  sed \
    -e "1s|'linux.*'|'${pkgbase}'|" \
    -e "s|ALL_kver=.*|ALL_kver=\"/boot/vmlinuz-${pkgbase}\"|" \
    -e "s|default_image=.*|default_image=\"/boot/initramfs-${pkgbase}.img\"|" \
    -e "s|fallback_image=.*|fallback_image=\"/boot/initramfs-${pkgbase}-fallback.img\"|" \
    -i "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"

  # remove build and source links
  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf "${pkgdir}/lib/firmware"
  # gzip -9 all modules to save 100MB of space
  find "${pkgdir}" -name '*.ko' -exec gzip -9 {} \;
  # make room for external modules
  ln -s "../extramodules-${_basekernel}${_kernelname:--ARCH}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
  # add real version for building modules and running depmod from post_install/upgrade
  mkdir -p "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:--ARCH}"
  echo "${_kernver}" > "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:--ARCH}/version"

  # Now we call depmod...
  depmod -b "$pkgdir" -F System.map "$_kernver"

  # move module tree /lib -> /usr/lib
  mv "$pkgdir/lib" "$pkgdir/usr"

# end c/p

  ###
  # Trick the AUR parser to accept split PKGBUILD
  true && pkgname="${pkgnameopt}"
}

### package_linux-pf-headers
package_linux-pf-headers() {
  pkgdesc="Header files and scripts for building modules for linux-pf kernel."
 depends=('linux-pf') 
  IFS=' ' read -a conflicts <<<${_conflicts}
  [[ ${cpuopt} ]] && pkgname=${pkgname}-${cpuopt} && depends=${depends}-${cpuopt}
  [[ ${cpuoptdesc} ]] && pkgdesc=${pkgdesc}${cpuoptdesc}
  provides=('linux-pf-headers')
  cd "${srcdir}/linux-${_basekernel}"
# c/p from linux-ARCH

  install -dm755 "${pkgdir}/usr/lib/modules/${_kernver}"

  cd "${pkgdir}/usr/lib/modules/${_kernver}"
  ln -sf ../../../src/linux-${_kernver} build


  cd "${srcdir}/${_srcname}"
  install -D -m644 Makefile \
    "${pkgdir}/usr/src/linux-${_kernver}/Makefile"
  install -D -m644 kernel/Makefile \
    "${pkgdir}/usr/src/linux-${_kernver}/kernel/Makefile"
  install -D -m644 .config \
    "${pkgdir}/usr/src/linux-${_kernver}/.config"

  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include"

  for i in acpi asm-generic config crypto drm generated keys linux math-emu \
    media net pcmcia scsi sound trace uapi video xen; do
    cp -a include/${i} "${pkgdir}/usr/src/linux-${_kernver}/include/"
  done

  # copy arch includes for external modules
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/arch/x86"
  cp -a arch/x86/include "${pkgdir}/usr/src/linux-${_kernver}/arch/x86/"

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers "${pkgdir}/usr/src/linux-${_kernver}"
  cp -a scripts "${pkgdir}/usr/src/linux-${_kernver}"

  # fix permissions on scripts dir
  chmod og-w -R "${pkgdir}/usr/src/linux-${_kernver}/scripts"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/.tmp_versions"

  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/kernel"

  cp arch/${KARCH}/Makefile "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/"

  if [ "${CARCH}" = "i686" ]; then
    cp arch/${KARCH}/Makefile_32.cpu "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/"
  fi

  cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/kernel/"

  # add headers for lirc package
  # pci
  for i in bt8xx cx88 saa7134; do
    mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/pci/${i}"
    cp -a drivers/media/pci/${i}/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/pci/${i}"
  done
  # usb
  for i in cpia2 em28xx pwc sn9c102; do
    mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/usb/${i}"
    cp -a drivers/media/usb/${i}/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/usb/${i}"
  done
  # i2c
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/i2c"
  cp drivers/media/i2c/*.h  "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/i2c/"
  for i in cx25840; do
    mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/i2c/${i}"
    cp -a drivers/media/i2c/${i}/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/i2c/${i}"
  done

  # add docbook makefile
  install -D -m644 Documentation/DocBook/Makefile \
    "${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile"

  # add dm headers
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/md"
  cp drivers/md/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/md"

  # add inotify.h
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include/linux"
  cp include/linux/inotify.h "${pkgdir}/usr/src/linux-${_kernver}/include/linux/"

  # add wireless headers
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/"
  cp net/mac80211/*.h "${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/"

  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/9912
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb-core"
  cp drivers/media/dvb-core/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb-core/"
  # and...
  # http://bugs.archlinux.org/task/11194
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/"
  cp include/config/dvb/*.h "${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/"

  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
  # in reference to:
  # http://bugs.archlinux.org/task/13146
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb-frontends/"
  cp drivers/media/dvb-frontends/lgdt330x.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb-frontends/"
  cp drivers/media/i2c/msp3400-driver.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/i2c/"
  
  # add dvb headers
  # in reference to:
  # http://bugs.archlinux.org/task/20402
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/usb/dvb-usb"
  cp drivers/media/usb/dvb-usb/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/usb/dvb-usb/"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb-frontends"
  cp drivers/media/dvb-frontends/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb-frontends/"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/tuners"
  cp drivers/media/tuners/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/tuners/"
 

  # add xfs and shmem for aufs building
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/fs/xfs"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/mm"
  cp fs/xfs/xfs_sb.h "${pkgdir}/usr/src/linux-${_kernver}/fs/xfs/xfs_sb.h"

  # copy in Kconfig files
  for i in `find . -name "Kconfig*"`; do
    mkdir -p "${pkgdir}"/usr/src/linux-${_kernver}/`echo ${i} | sed 's|/Kconfig.*||'`
    cp ${i} "${pkgdir}/usr/src/linux-${_kernver}/${i}"
  done

  chown -R root.root "${pkgdir}/usr/src/linux-${_kernver}"
  find "${pkgdir}/usr/src/linux-${_kernver}" -type d -exec chmod 755 {} \;

  # strip scripts directory
  find "${pkgdir}/usr/src/linux-${_kernver}/scripts" -type f -perm -u+w 2>/dev/null | while read binary ; do
    case "$(file -bi "${binary}")" in
      *application/x-sharedlib*) # Libraries (.so)
        /usr/bin/strip ${STRIP_SHARED} "${binary}";;
      *application/x-archive*) # Libraries (.a)
        /usr/bin/strip ${STRIP_STATIC} "${binary}";;
      *application/x-executable*) # Binaries
        /usr/bin/strip ${STRIP_BINARIES} "${binary}";;
    esac
  done

  # remove unneeded architectures
  rm -rf "${pkgdir}"/usr/src/linux-${_kernver}/arch/{alpha,arm,arm26,avr32,blackfin,c6x,cris,frv,h8300,hexagon,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,openrisc,parisc,powerpc,ppc,s390,score,sh,sh64,sparc,sparc64,tile,unicore32,um,v850,xtensa}
# end c/p

  # Add version.h for dumb binary blob installers which aren't
  cd "${pkgdir}/usr/src/linux-${_kernver}/include/linux/"
  [[ -e version.h ]] || ln -s ../generated/uapi/linux/version.h

}

# Work around the AUR parser
pkgdesc="Linux kernel and modules with the pf-kernel patch [-ck patchset (BFS included), TuxOnIce, BFQ] and aufs3"

# makepkg -g >>PKGBUILD
sha256sums=('e070d1bdfbded5676a4f374721c63565f1c969466c5a3e214004a136b583184b'
            'e965c73b7a93da116edeff54c9758ee7dbda50ad0683ead2ff7b55ac7cb263af'
            '6cbd2c25982c6bea19ea9915252a6282ab4eff8ee27757bf221672209eb5fa27'
            '82d660caa11db0cd34fd550a049d7296b4a9dcd28f2a50c81418066d6e598864'
            '03ed4eb4a35d42ae6beaaa5e6fdbada4244ed6c343944bba6462defaa6fed0bf'
            '51ea665cfec42d9f9c7796af2b060b7edbdeb367e42811f8c02667ad729f6b19'
            '9e1e81d80afac6f316e53947e1b081017090081cd30e6c4c473420b77af4b52b'
            '56bd99e54429a25a144f2d221718b67f516344ffd518fd7dcdd752206ec5be69'
            '4b8b51a298768048735914e747affe39f58d47d20833cd90fdc002559c719c6a'
            'b4a0e24b110ab6d73b020d4399c5afb63c4961624d28e624604435aaef805fac')