LLVM: Update to version 9.0.1. * src/llvm.mk: Update version and checksum. Update dependency to Python 3. Make sure to use python built by MXE Octave. * src/llvm-2-demangle.patch: Remove patch. * dist-files.mk: Remove file from list.

#!/usr/bin/env bash

prog=$1

if [ -z $prog ]; then
  echo "Missing program name" >&2
  exit 1
fi

cat << EOF
@echo off
set BINPATH=%~dp0
%BINPATH%bash -c '$prog %*'
EOF