Pythia8 package with correct PYTHONPATH

PKGBUILD

# Maintainer: Stefano Campanella <stefanocampanella1729@gmail.com>
# Contributor: Konstantin Gizdov <kgizdov@gmail.com>
pkgname=pythia
pkgver=8.2.19
_pkgid=$pkgname`echo $pkgver | tr -d '.'`
pkgrel=1
pkgdesc="Generation of high-energy physics events."
arch=('i686' 'x86_64')
url="http://home.thep.lu.se/Pythia/"
license=('GPL')
depends=('bash' 'boost-libs')
provides=('$pkgname')
source=("http://home.thep.lu.se/~torbjorn/pythia8/$_pkgid.tgz"
'pythia.sh')
md5sums=('3459b52b5da1deae52cbddefa6196feb'
         '0320534e1be7155cfb8ee19c7f8480cc')
_srcpath=$srcdir/$_pkgid

build(){
    cd $srcdir/$_pkgid
  ./configure --prefix=/usr \
    --prefix-include=/usr/include/ \
    --prefix-lib=/usr/lib/ \
    --enable-shared \
    --with-boost \
    --with-boost-include=/usr/include/ \
    --with-boost-lib=/usr/lib/ \
    --with-gzip \
    --with-gzip-include=/usr/include/ \
    --with-gzip-lib=/usr/lib/ \
    --with-python \
    --with-python-include=/usr/include/python3.5m/ \
    --with-python-lib=/usr/lib/python3.5/ \
    --cxx-common='-D_GLIBCXX_USE_CXX11_ABI=0 -fPIC -O3 -march=native'
    make ${MAKEFLAGS}
}

package() {
    mkdir -p "$pkgdir/usr"
    install -Dm755 "$srcdir/$_pkgid/bin/pythia8-config" "$pkgdir/usr/bin/pythia8-config"
    install -D "$srcdir/pythia.sh" "$pkgdir/etc/profile.d/pythia.sh"

    cp -r "$srcdir/$_pkgid/include" "$pkgdir/usr/"
    cp -r "$srcdir/$_pkgid/share" "$pkgdir/usr/"
    cp -r "$srcdir/$_pkgid/examples" "$pkgdir/usr/share/Pythia8/"

    install -Dm755 "$srcdir/$_pkgid/lib/libpythia8.so" "$pkgdir/usr/lib/libpythia8.so"
    install -Dm755 "$srcdir/$_pkgid/lib/_pythia8.so" "$pkgdir/usr/lib/python3.5/site-packages/_pythia8.so"
    install -Dm755 "$srcdir/$_pkgid/lib/pythia8.py" "$pkgdir/usr/lib/python3.5/site-packages/pythia8.py"
}

pythia.sh

# /etc/profile.d/pythia.sh
export PYTHIA8=/usr
export PYTHIA8DATA=$PYTHIA8/share/Pythia8/xmldoc