#!/usr/bin/env bash
#**************************************************************************
#*                                                                        *
#*                                 OCaml                                  *
#*                                                                        *
#*                David Allsopp, MetaStack Solutions Ltd.                 *
#*                                                                        *
#*   Copyright 2015 MetaStack Solutions Ltd.                              *
#*                                                                        *
#*   All rights reserved.  This file is distributed under the terms of    *
#*   the GNU Lesser General Public License version 2.1, with the          *
#*   special exception on linking described in the file LICENSE.          *
#*                                                                        *
#**************************************************************************

# Ensure that the Microsoft Linker isn't being messed up by /usr/bin/link
if [ "`link --version | head -1 | \
     fgrep "Microsoft (R) Incremental Linker"`" != "" ] ; then
  echo "link already refers to the Microsoft Linker">&2
  exit 0
fi

IFS=:
T=
FOUND=0
FIRST=1
for i in $PATH
do
  if [ $FIRST -eq 1 ] ; then
    T="$i"
    FIRST=0
  else
    if [ $FOUND -eq 0 -a -x $i/link ] && [ "`$i/link --version | head -1 | \
                       fgrep "Microsoft (R) Incremental Linker"`" != "" ] ; then
      FOUND=1
      T="$i:$T"
      PROM=$i
    else
      T="$T:$i"
    fi
  fi
done
unset IFS

if [ $FOUND -eq 0 ] ; then
  echo The Microsoft Linker was not found in any of the PATH entries!>&2
  exit 1
else
  echo "$PROM moved to the front of \$PATH">&2
  echo export PATH=\"$T\"
fi