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

# zstd.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter for Slackware ARM.
#
# zstd.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter for Slackware ARM.
#
# Copyright 2018  Eric Hameleers, Eindhoven, Netherlands
# Copyright 2018, 2023  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

# Detect whether we're building for /patches:
# This function sets the variable 'SLACKPATCHING'
slack_findpkgstore_is_stablerelease

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

# Configure:
mkdir -p build/cmake/build
pushd build/cmake/build
cmake \
   -DCMAKE_C_FLAGS="$SLKCFLAGS" \
   -DCMAKE_CXX_FLAGS="$SLKCFLAGS" \
   -DCMAKE_INSTALL_PREFIX=/usr \
   -DLIB_SUFFIX="$LIBDIRSUFFIX" \
   -DDOC_INSTALL_DIR="doc" \
   -DMAN_INSTALL_DIR=/usr/man/man1 \
   -DZSTD_BUILD_STATIC=OFF \
   -DZSTD_PROGRAMS_LINK_SHARED=ON \
   -DZSTD_LZ4_SUPPORT=ON \
   -DZSTD_LZMA_SUPPORT=ON \
   -DZSTD_ZLIB_SUPPORT=ON \
   .. || failconfig

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

# Install into package:
make install DESTDIR=$PKG || failinstall
popd

# Compile and install pzstd:
zcat $CWD/zstd.dont.link.pzstd.to.static.libzstd.a.diff.gz | patch -p1 --verbose || failpatch
make $NUMJOBS CFLAGS="$SLKCFLAGS" -C contrib/pzstd || failmake
install -Dvpm755 contrib/pzstd/pzstd $PKG/usr/bin/pzstd || failinstall

# Don't ship static library:
#rm -fv $PKG/usr/lib${LIBDIRSUFFIX}/*.a

# It might be advisable to have the libraries in /lib${LIBDIRSUFFIX}:
mkdir -vpm755 $PKG/lib${LIBDIRSUFFIX}
mv -fv $PKG/usr/lib${LIBDIRSUFFIX}/libzstd.so.* $PKG/lib${LIBDIRSUFFIX}
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  rm -f libzstd.so
  ln -vsf ../../lib${LIBDIRSUFFIX}/libzstd.so.? libzstd.so )

# zstdmt as the same as zstd, so just make a symlink:
( cd $PKG/usr/bin
  ln -vsf zstd zstdmt )

# Set the path of libzstd in cmake Targets (given by Steven Voges in SBo)
sed -i 's|${_IMPORT_PREFIX}||g' $PKG/usr/lib${LIBDIRSUFFIX}/cmake/zstd/zstdTargets-release.cmake

# Add documentation:
mkdir -vpm755 $PKG/usr/doc/$PKGNAM-$VERSION
cp -fav \
  CONTRIBUTING* COPYING* LICENSE NEWS README* TESTING* \
  $PKG/usr/doc/$PKGNAM-$VERSION
#changelogliposuction ChangeLog $PKGNAM $VERSION # Trim down a "ChangeLog" file

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall        # strip all .a archives and all ELFs
#slackstriprpaths     # strip rpaths
slack_delete_lafiles # delete usr/lib{,64}/*.la
slackgzpages -i      # compress man & info pages and delete usr/info/dir
slackslack           # set standard Slackware file/dir permissions and ownerships
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