#!/bin/sh

[ $# -lt 1 ] && echo "Usage: `basename $0` %{buildroot}%{ghclibdir} ..." && exit 1

set +x

PKGBASEDIR=$1

shift

PKGCONFDIR=$PKGBASEDIR/package.conf.d

GHC_VER=$(basename $PKGBASEDIR | sed -e s/ghc-//)

# for a ghc build use the new ghc-pkg

INPLACE_GHCPKG=$PKGBASEDIR/../../bin/ghc-pkg-$GHC_VER

if [ -x "$INPLACE_GHCPKG" ]; then

    case $GHC_VER in

        7.4.*)

            GHC_PKG="$PKGBASEDIR/ghc-pkg --global-conf=$PKGCONFDIR"

            ;;

        7.6.*)

            GHC_PKG="$PKGBASEDIR/ghc-pkg --global-package-db=$PKGCONFDIR"

            ;;

        # 7.8 and 7.10

        *)

            GHC_PKG="env LD_LIBRARY_PATH=$(dirname $PKGBASEDIR) $PKGBASEDIR/bin/ghc-pkg --global-package-db=$PKGCONFDIR"

            ;;

    esac

else

    GHC_PKG="/usr/bin/ghc-pkg-${GHC_VER} -f $PKGCONFDIR"

fi

$GHC_PKG -v0 --simple-output --global $* | uniq