not working

PKGBUILD

# Maintainer: Grey Christoforo <first name at last name dot net>
pkgname=ess-epics
pkgver=7.0.2
pkgrel=1
pkgdesc="Experimental Physics and Industrial Control System -- ESS falvor"
arch=('any')
url="http://www.aps.anl.gov/epics/"
provides=('epics')
conflicts=('epics')
license=('EPICS Open License')
makedepends=('rpcsvc-proto')
depends=('libtirpc-compat' 'tclx' 'tcl' 'aravis' 'glibmm' 'libtirpc' 'readline' 'libxt' 'libxmu' 'libxpm' 'pcre' 'net-snmp' 're2c' 'darcs' 'python2' 'netcdf' 'hdf5' 'libpng' 'bzip2' 'libxml2' 'libxml2' 'libusb' 'libusb-compat' 'remake' 'systemd' 'linux-headers' 'mercurial' 'boost' 'boost-libs' 'libraw1394' 'opencv')
source=("git+https://github.com/icshwi/e3.git" "build.sh")
md5sums=('SKIP'
         'fe726fb3e08638f7a53192b427766f61')

prepare() {
  cd e3
  #git submodule update --init --recursive
}

build() {
  #set -o pipefail
  #set -o errexit
  #set -o nounset
  #set -o verbose
  #set -o xtrace
  #export SHELLOPTS
  #git clone https://github.com/icshwi/e3-base
  #cd e3-base/
  #git submodule update --init --recursive
  #cd epics-base/
  #git checkout tags/R7.0.2
  
  ./build.sh

  #cd e3
  #yes | bash e3_building_config.bash -t "${srcdir}/build" -b ${pkgver} setup
  #bash e3.bash base
}

package() {
  cd e3
  
  #mkdir -p "${pkgdir}/opt/"
  #cp -a "${srcdir}/ng3e-${pkgver}/root/${_base_recipe}" "${pkgdir}/opt/epics"
}