(
  rm -rf espeak
  mkdir -p espeak
  cd espeak
  wget https://github.com/espeak-ng/espeak-ng/archive/refs/tags/1.51.zip
  unzip -qq 1.51.zip
  cd espeak-ng-1.51
  ./autogen.sh
  ./configure --prefix=`pwd`/../usr
  make
  make install
)
# build bazel too
USE_BAZEL_VERSION=5.0.0 ./bazelisk-linux-amd64 build wavegru_mod -c opt --copt=-march=native
cp -f bazel-bin/wavegru_mod.so .