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#!/bin/sh
# scales - Generate musical scale patterns
# Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
# Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
#
# This file is part of scales and was snarfed from GNU Guix.
#
# This program is free software: you can redistribute it and/or
# modify it under the terms of the GNU Affero General Public License
# as published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program. If not, see
# <http://www.gnu.org/licenses/>.
# Usage: ./pre-inst-env COMMAND ARG...
#
# Run COMMAND in a pre-installation environment. Typical use is
# "./pre-inst-env ./scripts/scales".
# By default we may end up with absolute directory names that contain '..',
# which get into $GUILE_LOAD_PATH, leading to '..' in the module file names
# recorded by Guile. To avoid that, make sure we get a real absolute
# directory name. Additionally, use '-P' to get the canonical directory name
# so that Guile's 'relative' %file-port-name-canonicalization can actually
# work (see <http://bugs.gnu.org/17935>.)
abs_top_srcdir="`cd "@abs_top_srcdir@" > /dev/null; pwd -P`"
abs_top_builddir="`cd "@abs_top_builddir@" > /dev/null; pwd -P`"
GUILE_LOAD_COMPILED_PATH="$abs_top_builddir${GUILE_LOAD_COMPILED_PATH:+:}$GUILE_LOAD_COMPILED_PATH"
GUILE_LOAD_PATH="$abs_top_builddir:$abs_top_srcdir${GUILE_LOAD_PATH:+:}$GUILE_LOAD_PATH"
export GUILE_LOAD_COMPILED_PATH GUILE_LOAD_PATH
# Define $PATH so that `guix' and friends are easily found.
PATH="$abs_top_builddir/scripts:$abs_top_builddir:$PATH"
export PATH
# Define $SCALES_UNINSTALLED to prevent scripts from
# prepending @guilemoduledir@ to the Guile load paths.
SCALES_UNINSTALLED=1
export SCALES_UNINSTALLED
exec "$@"
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