#!/bin/sh
#	fixghc:  a small script to patch up the -syslib changes between
#		versions 4.04, 4.06, 4.08, and 5.xx of ghc.

case $# in
  0) exit 1;;
esac
ghcversion=$1
shift

# We need a working `echo' command: Solaris2.6 and HP/UX may not have it.
case `echo -n hello | wc -c | ( read n ; echo $n )` in
    5) echon () { echo -n "$@"; } ;;
    *) LOCAL=${LOCAL-`dirname $0`}
       if [ -x $LOCAL/echo ]
       then echon () { $LOCAL/echo -n "$@"; }
       else echon () { echo "$@"; }
       fi ;;
esac

# Versions of ghc > 6.0 need a hack to make the version number larger.
if [ $ghcversion -le 100 ]
then
  ghcversion=${ghcversion}0
fi

# We permit arguments to arrive in any format (4.04, 4.06, 4.08, 5.00, 5.04),
# and translate to the format specified by the first arg.

if [ $ghcversion -le 405 ]
then
  while test "'$1'" != "''" 
  do
    case $1 in
      -syslib|-package) shift
               case $1 in
                 lang) echon " -syslib exts";;
                 text) echon " -syslib misc";;
                 base) ;;
                 *)    echon " -syslib $1" ;;
               esac ;;
      *) echon " $1" ;;
    esac
    shift
  done
  echo
  exit 0
fi

if [ $ghcversion -gt 405 -a $ghcversion -lt 408 ]
then
  while test "'$1'" != "''" 
  do
    case $1 in
      -syslib|-package) shift
               case $1 in
                 exts) echon " -syslib lang";;
                 misc) ;;
                 base) ;;
                 *)    echon " -syslib $1" ;;
               esac ;;
      *) echon " $1" ;;
    esac
    shift
  done
  echo
  exit 0
fi

if [ $ghcversion -ge 408 -a $ghcversion -lt 504 ]
then
  while test "'$1'" != "''" 
  do
    case $1 in
      -syslib) shift
               case $1 in
                 exts) echon " -package lang";;
                 misc) ;;
                 base) ;;
                 *)    echon " -package $1" ;;
               esac ;;
      -package) shift
               case $1 in
                 base) ;;
                 haskell98) ;;
                 readline) ;;
                 *)    echon " -package $1" ;;
               esac ;;
      *) echon " $1" ;;
    esac
    shift
  done
  echo
  exit 0
fi

if [ $ghcversion -ge 504 -a $ghcversion -lt 605 ]
then
  while test "'$1'" != "''" 
  do
    case $1 in
      -syslib) shift
               case $1 in
                 exts) echon " -package lang";;
                 misc) ;;
                 *)    echon " -package $1" ;;
               esac ;;
      *) echon " $1" ;;
    esac
    shift
  done
  echo
  exit 0
fi

if [ $ghcversion -ge 605 ]
then
  while test "'$1'" != "''" 
  do
    case $1 in
      -syslib|-package) shift
               case $1 in
                 exts) ;;
                 misc) ;;
                 util) ;;
                 lang) ;;
                 text) ;;
                 *)    echon " -package $1" ;;
               esac ;;
      *) echon " $1" ;;
    esac
    shift
  done
  echo
  exit 0
fi

# stand-by default case
echo "$@"
exit 0