[ -e /usr/bin/pypy2 ] &&
    _translator=pypy2 ||
    _translator=python2

# translate to C files; write to $srcdir/usession-$pkgname-0
PYPY_USESSION_DIR=$srcdir \
PYPY_USESSION_BASENAME=$pkgname \
$_translator ../../rpython/bin/rpython \
    --shared \
    --batch \
    --make-jobs=1 \
    --source \
    -Ojit \
    targetpypystandalone

# '--source' removes the gcc stage (letting the translator exit
# and thus freeing up ~6GB of RAM) leaving the following steps:
_cdir=$srcdir/usession-$pkgname-0/testing_1
make -sj$JOBS -C $_cdir
mv $_cdir/pypy*-c $_cdir/libpypy*-c.so .
./pypy*-c ../tool/build_cffi_imports.py

# use upstream's release script to build *.pyc
cd "$builddir/pypy/tool/release"
python2 package.py \
    --archive-name $pkgname-$pkgver-alpine-$CARCH \
    --builddir "$_reldir" \
    --rename_pypy_c $pkgname