#!/bin/bash

# Slackware build script for ngspice-jit

# Copyright 2026 Alfredo 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.

# ngspice-jit is a fork of ngspice (codeberg.org/alto555/ngspice).  The source
# tarball is a normal autotools "make dist" release: it already contains a
# generated ./configure, so it builds with the stock Slackware autoconf and
# needs no autogen.sh.

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

PRGNAM=ngspice-jit
VERSION=${VERSION:-46.2}
BUILD=${BUILD:-1}
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}

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
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# KLU, XSPICE, OSDI and OpenMP are enabled by default.
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-xspice \
  --enable-cider \
  --with-readline=yes \
  --with-x \
  --build=$ARCH-slackware-linux

make -j 4
make install DESTDIR=$PKG

# The OSDI JIT compiles behavioral R/C to native OSDI at run time with the
# system gcc, and needs the osdi headers.  Ship them and point the installed
# spinit at them (default in the source is the build tree, which does not
# exist on the target).
mkdir -p $PKG/usr/share/ngspice/osdi
install -m 0644 src/osdi/osdi.h src/osdi/osdidefs.h src/osdi/osdiext.h \
  $PKG/usr/share/ngspice/osdi/
SPINIT=$PKG/usr/share/ngspice/scripts/spinit
if [ -f "$SPINIT" ]; then
  echo "" >> "$SPINIT"
  echo "* ngspice-jit: where the OSDI codegen finds its headers" >> "$SPINIT"
  echo "set osdi_res_include=/usr/share/ngspice/osdi" >> "$SPINIT"
fi

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# man pages
find $PKG/usr/man -type f -name "*.?" -exec gzip -9 {} \; 2> /dev/null || true

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a COPYING* README* ANNOUNCE* NEWS* $PKGDOC 2> /dev/null || true

# Example circuits and our HTML/PDF reference manual both ship in the source
# tree ("make dist" keeps examples/ and docs/reference_manual/), they just were
# not being copied into the package.  Install both.
cp -a examples $PKGDOC/ 2> /dev/null || true
cp -a docs/reference_manual $PKGDOC/ 2> /dev/null || true

cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

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

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