#!/bin/bash

usage() {
  echo "Usage: $0 [--prefix {prefix directory}], e.g. /usr/local" 2>&1
  exit 1
}

prefix="/usr/local"
if [ $# -eq 0 ]; then
  echo "Using $prefix"
elif [ $# -ne 2 ]; then
  usage
else
  if [ "$1" != "--prefix" ]; then
    usage
  fi
  # Test for read access, not write access, since people can ./configure, make,
  # and make check outside of sudo and then make install inside sudo.
  prefix="$2"
  if [ ! -d "$prefix" ]; then
    echo "$0: could not find prefix directory \"$prefix\""
    exit 1
  fi
fi

sed "s@PREFIX_TEMPLATE_IS_HERE@$prefix@" go/Makefile.in  > go/Makefile
sed "s@PREFIX_TEMPLATE_IS_HERE@$prefix@" man/Makefile.in > man/Makefile