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#!/bin/sh
#
# Copyright (c) 2001 Masato Taruishi <taru@debian.org>
#
# wrapper program to invoke correct version of alsa programs
#
# If you want to install several versions of same program using
# diffent versions of ALSA, then this wrapper is just for you.
# Usage:
#
# 1. creates several versions of one program with suffix which is a major
# version of ALSA such as 0.5, 0.9. (for example, aplay-0.5,
# aplay-0.9).
#
# 2. creates a symlink named its program name without suffix
# to this wrapper (i.e. /usr/share/alsa-base/program-wrapper)
# in a same directory as a program with suffix.
# For example: /usr/bin/aplay -> /usr/share/alsa-base/program-wrapper
# /usr/bin/aplay-0.5, /usr/bin/aplay-0.9.
#
# In the above example, /usr/bin/aplay executes an apropriate version from
# /usr/bin/aplay-0.5 and /usr/bin/aplay-0.9. It depends on an environment
# of a machine. If ALSA 0.9 is installed in the machine, /usr/bin/aplay-0.9
# is executed, simillary if ALSA 0.5 is installed, /usr/bin/aplay-0.5 is
# executed.
program=$0
. /usr/share/alsa-base/snd-dev-utils
get_alsa_version
if [ "$alsa_major_version" = "none" ]; then
echo "No ALSA driver installed" >&2
exit 1
fi
if [ ! -x "$program-$alsa_major_version" ]; then
echo "No $program for ALSA $alsa_major_version found" >&2
exit 1
fi
exec "$program-$alsa_major_version" "$@"
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