diff --git a/PKGBUILD b/PKGBUILD
index d0a6f23..cd00d54 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -9,7 +9,7 @@ pkgrel=1
 arch=('i686' 'x86_64')
 url="https://www.kernel.org/"
 license=('GPL2')
-makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'libelf')
+makedepends=('xmlto' 'kmod' 'inetutils' 'bc' 'libelf')
 options=('!strip')
 source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         "https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.sign"
@@ -36,17 +36,17 @@ validpgpkeys=(
 _kernelname=${pkgbase#linux}
 
 prepare() {
-  cd "${srcdir}/${_srcname}"
+  cd ${_srcname}
 
   # add upstream patch
-  #patch -p1 -i "${srcdir}/patch-${pkgver}"
+  #patch -p1 -i ../patch-${pkgver}
 
   # security patches
 
   # add latest fixes from stable queue, if needed
   # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
-  
-  cat "${srcdir}/config.${CARCH}" > ./.config
+
+  cp -Tf ../config.${CARCH} .config
 
   if [ "${_kernelname}" != "" ]; then
     sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
@@ -75,7 +75,7 @@ prepare() {
 }
 
 build() {
-  cd "${srcdir}/${_srcname}"
+  cd ${_srcname}
 
   make ${MAKEFLAGS} LOCALVERSION= bzImage modules
 }
@@ -88,7 +88,7 @@ _package() {
   backup=("etc/mkinitcpio.d/${pkgbase}.preset")
   install=linux.install
 
-  cd "${srcdir}/${_srcname}"
+  cd ${_srcname}
 
   KARCH=x86
 
@@ -107,174 +107,122 @@ _package() {
   true && install=${install}.pkg
 
   # install mkinitcpio preset file for kernel
-  sed "s|%PKGBASE%|${pkgbase}|g" "${srcdir}/linux.preset" |
-    install -D -m644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
+  sed "s|%PKGBASE%|${pkgbase}|g" ../linux.preset |
+    install -Dm644 /dev/stdin "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
 
   # install pacman hook for initramfs regeneration
-  sed "s|%PKGBASE%|${pkgbase}|g" "${srcdir}/90-linux.hook" |
-    install -D -m644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/90-${pkgbase}.hook"
+  sed "s|%PKGBASE%|${pkgbase}|g" ../90-linux.hook |
+    install -Dm644 /dev/stdin "${pkgdir}/usr/share/libalpm/hooks/90-${pkgbase}.hook"
 
   # remove build and source links
-  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
+  rm "${pkgdir}"/lib/modules/${_kernver}/{source,build}
+
   # remove the firmware
-  rm -rf "${pkgdir}/lib/firmware"
+  rm -r "${pkgdir}/lib/firmware"
+
   # 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}${_kernelname:--ARCH}/version"
+  echo "${_kernver}" |
+    install -Dm644 /dev/stdin "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:--ARCH}/version"
 
   # Now we call depmod...
   depmod -b "${pkgdir}" -F System.map "${_kernver}"
 
   # move module tree /lib -> /usr/lib
-  mkdir -p "${pkgdir}/usr"
-  mv "${pkgdir}/lib" "${pkgdir}/usr/"
+  mv -t "${pkgdir}/usr" "${pkgdir}/lib"
 
   # add vmlinux
-  install -D -m644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux"
+  install -Dm644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux"
 }
 
 _package-headers() {
   pkgdesc="Header files and scripts for building modules for ${pkgbase/linux/Linux} kernel"
 
-  install -dm755 "${pkgdir}/usr/lib/modules/${_kernver}"
+  cd ${_srcname}
+  local _builddir="${pkgdir}/usr/lib/modules/${_kernver}/build"
 
-  cd "${srcdir}/${_srcname}"
-  install -D -m644 Makefile \
-    "${pkgdir}/usr/lib/modules/${_kernver}/build/Makefile"
-  install -D -m644 kernel/Makefile \
-    "${pkgdir}/usr/lib/modules/${_kernver}/build/kernel/Makefile"
-  install -D -m644 .config \
-    "${pkgdir}/usr/lib/modules/${_kernver}/build/.config"
+  install -Dt "${_builddir}" -m644 Makefile .config Module.symvers
+  install -Dt "${_builddir}/kernel" -m644 kernel/Makefile
 
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include"
+  mkdir "${_builddir}/.tmp_versions"
 
-  for i in acpi asm-generic config crypto drm generated keys linux math-emu \
-    media net pcmcia rdma scsi soc sound trace uapi video xen; do
-    cp -a include/${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/include/"
-  done
+  cp -t "${_builddir}" -a include scripts
 
-  # copy arch includes for external modules
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/x86"
-  cp -a arch/x86/include "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/x86/"
+  install -Dt "${_builddir}/arch/${KARCH}" -m644 arch/${KARCH}/Makefile
+  install -Dt "${_builddir}/arch/${KARCH}/kernel" -m644 arch/${KARCH}/kernel/asm-offsets.s
 
-  # copy files necessary for later builds, like nvidia and vmware
-  cp Module.symvers "${pkgdir}/usr/lib/modules/${_kernver}/build"
-  cp -a scripts "${pkgdir}/usr/lib/modules/${_kernver}/build"
-
-  # fix permissions on scripts dir
-  chmod og-w -R "${pkgdir}/usr/lib/modules/${_kernver}/build/scripts"
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/.tmp_versions"
-
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel"
-
-  cp arch/${KARCH}/Makefile "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"
-
-  if [ "${CARCH}" = "i686" ]; then
-    cp arch/${KARCH}/Makefile_32.cpu "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"
+  if [[ ${CARCH} = i686 ]]; then
+    install -t "${_builddir}/arch/${KARCH}" -m644 arch/${KARCH}/Makefile_32.cpu
   fi
 
-  cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel/"
+  cp -t "${_builddir}/arch/${KARCH}" -a arch/${KARCH}/include
 
-  # add docbook makefile
-  install -D -m644 Documentation/DocBook/Makefile \
-    "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"
+  install -Dt "${_builddir}/drivers/md" -m644 drivers/md/*.h
+  install -Dt "${_builddir}/net/mac80211" -m644 net/mac80211/*.h
 
-  # add dm headers
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"
-  cp drivers/md/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"
-
-  # add inotify.h
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux"
-  cp include/linux/inotify.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux/"
-
-  # add wireless headers
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"
-  cp net/mac80211/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"
-
-  # add dvb headers for external modules
-  # in reference to:
   # http://bugs.archlinux.org/task/9912
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core"
-  cp drivers/media/dvb-core/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core/"
-  # and...
-  # http://bugs.archlinux.org/task/11194
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"
-  cp include/config/dvb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"
+  install -Dt "${_builddir}/drivers/media/dvb-core" -m644 drivers/media/dvb-core/*.h
 
-  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
-  # in reference to:
   # http://bugs.archlinux.org/task/13146
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
-  cp drivers/media/dvb-frontends/lgdt330x.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"
-  cp drivers/media/i2c/msp3400-driver.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"
+  install -Dt "${_builddir}/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/lgdt330x.h
+  install -Dt "${_builddir}/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
 
-  # add dvb headers
-  # in reference to:
   # http://bugs.archlinux.org/task/20402
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb"
-  cp drivers/media/usb/dvb-usb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb/"
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends"
-  cp drivers/media/dvb-frontends/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners"
-  cp drivers/media/tuners/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners/"
+  install -Dt "${_builddir}/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
+  install -Dt "${_builddir}/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
+  install -Dt "${_builddir}/drivers/media/tuners" -m644 drivers/media/tuners/*.h
 
   # add xfs and shmem for aufs building
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs"
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/mm"
-  # removed in 3.17 series
-  # cp fs/xfs/xfs_sb.h "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs/xfs_sb.h"
+  mkdir -p "${_builddir}"/{fs/xfs,mm}
 
   # copy in Kconfig files
-  for i in $(find . -name "Kconfig*"); do
-    mkdir -p "${pkgdir}"/usr/lib/modules/${_kernver}/build/`echo ${i} | sed 's|/Kconfig.*||'`
-    cp ${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/${i}"
-  done
+  find . -name Kconfig\* -exec install -Dm644 {} "${_builddir}/{}" \;
 
   # add objtool for external module building and enabled VALIDATION_STACK option
-  if [ -f tools/objtool/objtool ];  then
-      mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool"
-      cp -a tools/objtool/objtool ${pkgdir}/usr/lib/modules/${_kernver}/build/tools/objtool/
+  if [[ -e tools/objtools/objtool ]]; then
+    install -Dt "${_builddir}/tools/objtool" tools/objtool/objtool
   fi
 
-  chown -R root.root "${pkgdir}/usr/lib/modules/${_kernver}/build"
-  find "${pkgdir}/usr/lib/modules/${_kernver}/build" -type d -exec chmod 755 {} \;
-
-  # strip scripts directory
-  find "${pkgdir}/usr/lib/modules/${_kernver}/build/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
+  # remove unneeded architectures
+  local _arch
+  for _arch in "${_builddir}"/arch/*/; do
+    if [[ ${_arch} != */${KARCH}/ ]]; then
+      rm -r "${_arch}"
+    fi
   done
 
-  # remove unneeded architectures
-  rm -rf "${pkgdir}"/usr/lib/modules/${_kernver}/build/arch/{alpha,arc,arm,arm26,arm64,avr32,blackfin,c6x,cris,frv,h8300,hexagon,ia64,m32r,m68k,m68knommu,metag,mips,microblaze,mn10300,openrisc,parisc,powerpc,ppc,s390,score,sh,sh64,sparc,sparc64,tile,unicore32,um,v850,xtensa}
+  # remove files already in linux-docs package
+  rm -r "${_builddir}/Documentation"
 
-  # remove a files already in linux-docs package
-  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.recursion-issue-01"
-  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.recursion-issue-02"
-  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/kbuild/Kconfig.select-break"
+  # Fix permissions
+  chmod -R u=rwX,go=rX "${_builddir}"
+
+  # strip scripts directory
+  local _binary _strip
+  while read -rd '' _binary; do
+    case "$(file -bi "${_binary}")" in
+      *application/x-sharedlib*)  _strip="${STRIP_SHARED}"   ;; # Libraries (.so)
+      *application/x-archive*)    _strip="${STRIP_STATIC}"   ;; # Libraries (.a)
+      *application/x-executable*) _strip="${STRIP_BINARIES}" ;; # Binaries
+      *) continue ;;
+    esac
+    /usr/bin/strip ${_strip} "${_binary}"
+  done < <(find "${_builddir}/scripts" -type f -perm -u+w -print0 2>/dev/null)
 }
 
 _package-docs() {
   pkgdesc="Kernel hackers manual - HTML documentation that comes with the ${pkgbase/linux/Linux} kernel"
 
-  cd "${srcdir}/${_srcname}"
+  cd ${_srcname}
+  local _builddir="${pkgdir}/usr/lib/modules/${_kernver}/build"
 
-  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build"
-  cp -al Documentation "${pkgdir}/usr/lib/modules/${_kernver}/build"
-  find "${pkgdir}" -type f -exec chmod 444 {} \;
-  find "${pkgdir}" -type d -exec chmod 755 {} \;
+  mkdir -p "${_builddir}"
+  cp -t "${_builddir}" -a Documentation
 
-  # remove a file already in linux package
-  rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"
+  # Fix permissions
+  chmod -R u=rwX,go=rX "${_builddir}"
 }
 
 pkgname=("${pkgbase}" "${pkgbase}-headers" "${pkgbase}-docs")