#! /bin/sh
# builds 64-bit MacPorts
# 
# Author: Michael Weber <michaelw@foldr.org>, 2009
# <http://www.foldr.org/~michaelw/log/static/computers/macosx/build_macports64>

set -e
prefix="${1:-/opt/local64}"
rev="51487"                # should be HEAD, but does not work ATM (2009-05-28)
mp_src="macports/base"
uarchs="${MP_ARCHS:-x86_64}"

echo "Checking whether sudo works... "
sudo echo "yes." || {
  echo >&2 "no.  Need a working sudo."
  exit 1
}

[ -f "$prefix" ] && {
  echo >&2 "Directory '$prefix' already existing, cowardly refusing to run."
  exit 1
}

[ -f "$mp_src" ] && {
  echo >&2 "Directory '$mp_src' already existing, cowardly refusing to run."
  exit 1
}

command -v port >/dev/null 2>&1 || {
  echo >&2 "Need existing MacPorts (32-bit) installation."
  echo >&2 "(Checking for command 'port' in PATH.)"
  exit 1
}

echo "Building MacPorts in $mp_src for: $uarchs"
svn co -r "$rev" http://svn.macports.org/repository/macports/trunk/base "$mp_src"
cd "$mp_src"

if (port installed tcl | fgrep '+threads') >/dev/null 2>&1; then :
else
  sudo port build tcl +threads
  sudo port deactivate tcl
  sudo port install tcl +threads
fi

export PATH=/bin:/sbin:/usr/bin:/usr/sbin
./configure --prefix="$prefix" --with-universal-archs="$uarchs" \
            --with-tclpackage=/Library/Tcl64
make
sudo make install
sudo sh -c 'echo "+universal" >> '"$prefix/etc/macports/variants.conf"

export PATH="$prefix/bin:$prefix/sbin:$PATH"

sudo port selfupdate
sudo port install tcl +threads

port installed

cat <<EOM

Build finished.
To use 64-bit MacPorts, add the following to your login scripts:

   PATH=$prefix/bin:$prefix/sbin:\$PATH
   export PATH
EOM