#! /bin/sh
# preinst script for xpsb-glx
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <new-preinst> `install'
#        * <new-preinst> `install' <old-version>
#        * <new-preinst> `upgrade' <old-version>
#        * <old-preinst> `abort-upgrade' <new-version>
#
# For details see /usr/share/doc/packaging-manual/



case "$1" in
    install|upgrade)

    # Remove previous diversions
    if dpkg-divert --list /usr/lib/libGL.so.1 | grep 'xpsb-glx' > /dev/null ; then
        dpkg-divert --remove --rename --package xpsb-glx --divert /usr/lib/psb/libGL.so.1.xlibmesa /usr/lib/libGL.so.1 > /dev/null || true
    fi

    if dpkg-divert --list /usr/lib/libGL.so.1.2 | grep 'xpsb-glx' > /dev/null ; then
        dpkg-divert --remove --rename --package xpsb-glx --divert /usr/lib/psb/libGL.so.1.2.xlibmesa /usr/lib/libGL.so.1.2 > /dev/null || true
    fi

    # Create the directory which will contain the original libraries
    if ! [ -d /usr/lib/psb ]; then
        mkdir -p /usr/lib/psb
    fi

    # Add new diversions
#    dpkg-divert --add --rename --package xpsb-glx --divert /usr/lib/psb/libGL.so.1.xlibmesa /usr/lib/libGL.so.1 > /dev/null
#    dpkg-divert --add --rename --package xpsb-glx --divert /usr/lib/psb/libGL.so.1.2.xlibmesa /usr/lib/libGL.so.1.2 > /dev/null

    ;;

    abort-upgrade)
    ;;

    *)
        echo "preinst called with unknown argument \`$1'" >&2
        exit 0
    ;;
esac


# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0
