#!/bin/bash
ulimit -s unlimited
shopt -s extglob

# alsa-lib.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter <mozes@slackware.com>
# 19-Sep-2004
#
# Copyright 2008-2026  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Extract source:
tar xf $CWD/$PKGNAM-$VERSION.tar.!(*sign|*asc|*sig)
cd $PKGNAM-$VERSION || failextract
slackhousekeeping

# Apply patches:

# Fix file missing in 1.1.6:
if [ ! -r src/conf/smixer.conf ]; then
   cp -fav $CWD/smixer.conf src/conf
fi

# Patch regressions in 1.2.15:
#cat $CWD/a6238053c4fa518b214f99d91a01b96c5ef6e3ca.diff | patch -p1 --verbose || exit 1
#cat $CWD/d83af363f1fc17e2b3e7cf2a0f848722f6643a9a.patch | patch -p1 --verbose || exit 1

# This helps compiling older code:
#cat $CWD/alsa-lib-1.2.13-seq-ump-headers.patch | patch -p1 --verbose || exit 1

# Untar the configuration files. We'll install them later.
( mkdir ucm-and-topology-configs
  cd ucm-and-topology-configs
  for file in $CWD/alsa-*conf*tar.lz ; do
    tar xvf $file
    mv $(basename $file | cut -f 1-3 -d -)-*/* .
    rmdir $(basename $file | cut -f 1-3 -d -)-*
    mv -fv README.md README-$(echo $(basename $file) | cut -f 1-3 -d -)
   done
 )

# Configure:
CFLAGS="$SLKCFLAGS" \
./configure \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --enable-mixer-modules \
   --enable-topology \
   --enable-ucm \
   --build=${SLK_ARCH_BUILD} || failconfig

# Build:
make $NUMJOBS || make || failmake

# Install into package:
make install DESTDIR=$PKG || exit 1
mkdir -vpm755 $PKG/etc
if [ "$TAG" = "_alsa" ]; then
   # Ship an empty asound.conf for ALSA-only system:
   install -vpm644 $CWD/asound.conf.alsa $PKG/etc/asound.conf.new
else
   # Redirect to PulseAudio:
   install -vpm644 $CWD/asound.conf.pulse $PKG/etc/asound.conf.new
fi

# Install ucm and topology configs:
( cd ucm-and-topology-configs ; tar cf - . ) | ( cd $PKG/usr/share/alsa ; tar xf -)

# TODO
# ( cd src/pcm/ext
# make jack
# make jack-install )

# Install docs:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a INSTALL MEMORY-LEAK NOTES TODO  \
      $PKG/usr/doc/$PKGNAM-$VERSION
cp -a COPYING $PKG/usr/doc/$PKGNAM-$VERSION/COPYING.lib
cp -a aserver/COPYING $PKG/usr/doc/$PKGNAM-$VERSION/COPYING.aserver
changelogliposuction ChangeLog $PKGNAM $VERSION

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slack_delete_lafiles # delete usr/lib{,64}/*.la
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links