BREWVER=${TRAVIS_PERL_VERSION/_*/}
BREWOPTS=
[[ "${TRAVIS_PERL_VERSION}_" =~ '_thr_' ]] && BREWOPTS="$BREWOPTS -Duseithreads"

if ! perlbrew use | grep -q "Currently using $TRAVIS_PERL_VERSION"; then
  echo "Building perl $TRAVIS_PERL_VERSION..."
  PERLBUILD=$(perlbrew install --as $TRAVIS_PERL_VERSION --notest --noman --verbose $BREWOPTS -j 2 $BREWVER 2>&1)
  perlbrew use $TRAVIS_PERL_VERSION
  if ! perlbrew use | grep -q "Currently using $TRAVIS_PERL_VERSION"; then
    echo "Unable to switch to $TRAVIS_PERL_VERSION - compilation failed...?" 1>&2
    echo "$PERLBUILD" 1>&2
    exit 1
  fi
fi
perlbrew install-cpanm -f