#!/bin/bash

# Slackware build script for libtomcrypt

# Copyright 2023 Steven Voges <Oregon, USA>
# Copyright 2017 Andrzej Telszewski, Banie
# 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.

# Multiple ideas shamelessly stolen from libtommath.SlackBuild
# by B. Watson (urchlay@slackware.uk).

# 20260815 bkw: Modified by SlackBuilds.org, BUILD=2:
# - actually use SLKCFLAGS.
# - fix .pc file on 64-bit.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=libtomcrypt
VERSION=${VERSION:-1.18.2}
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Use upstream CFLAGS.
if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz --no-same-owner
cd $PRGNAM-$VERSION
find . ! -type l    -a \( \
  \(     -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \(   ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \)

# -DTFM_DESC and -DUSE_TFM are left out, since it requires TomsFastMath.
make -f makefile.shared \
  CFLAGS="$SLKCFLAGS \
    -DGMP_DESC \
    -DLTM_DESC \
    -DUSE_GMP \
    -DUSE_LTM"

make -f makefile.shared install \
  PREFIX=/usr \
  LIBPATH=/usr/lib$LIBDIRSUFFIX \
  INCPATH=/usr/include \
  DATAPATH=/usr/data \
  BINPATH=/usr/bin \
  DESTDIR=$PKG

rm -f $PKG/usr/lib${LIBDIRSUFFIX}/*.{a,la}
for i in $PKG/usr/lib$LIBDIRSUFFIX/*.so.*.*.*; do
  strip $i
  chmod 755 $i
done

# 20260815 bkw: .pc file has hardcoded /lib path.
sed -i "/^libdir/s,\$,$LIBDIRSUFFIX," $PKG/usr/lib*/pkgconfig/*.pc

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a demos doc/crypt.tex notes LICENSE README.md changes $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE