#!/bin/sh

# Slackware build script for mupdf

# Originally written by Hubert Hesse (email removed).
# Heavily modified by B. Watson (yalhcru@gmail.com).

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20200217 bkw: update for 1.16.1.
# 20180623 bkw: BUILD=2, add patch for dynamic linking. Thanks
#               to Thomas Morper for pointing me in the right direction.
# 20180615 bkw: update for 1.13.0, move old change comments to ChangeLog.old
# 20180101 bkw: update for 1.12.0.
# 20170711 bkw: update for 1.11.
# 20170621 bkw: fix build with -current's newer openjpeg, BUILD=2.
# 20170122 bkw: update for 1.10a.

PRGNAM=mupdf
VERSION=${VERSION:-1.16.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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

CWD=$(pwd)
TMP=${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"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi
set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION-source
tar xvf $CWD/$PRGNAM-$VERSION-source.tar.?z
cd $PRGNAM-$VERSION-source

chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+


# Hard-code the version number so it'll stop trying to use git to retrieve
# it and spewing harmless but scary 'fatal: Not a git repository' errors.
sed -i "/^VERSION/s,=.*,= $VERSION," Makefile

# 20180623 bkw: Finally, dynamic linking again. Patch is based on
# http://www.linuxfromscratch.org/patches/blfs/svn/mupdf-1.13.0-shared_libs-1.patch
# but I added versioned sonames. See README_shared.txt for the gory details.
STATIC=${STATIC:-no}

if [ "$STATIC" != "yes" ]; then
  patch -p1 < $CWD/shared_libs.diff
  LIBTYPE=shared
else
  LIBTYPE=static
fi

# Build against system libs instead of bundled ones. If we didn't do this,
# libmupdf would be useless for building anything else.
make verbose=yes \
  XCFLAGS="$SLKCFLAGS -DJBIG_NO_MEMENTO" \
  USE_SYSTEM_LIBS=yes \
  build=release \
  prefix=/usr \
  libdir=/usr/lib$LIBDIRSUFFIX \
  mandir=/usr/man \
  docdir=/usr/doc/$PRGNAM-$VERSION \
  DESTDIR=$PKG \
  all install

strip $PKG/usr/bin/*
gzip -9 $PKG/usr/man/man1/*.1

# Compatibility symlinks. Older versions, the binary is just "mupdf".
# Separate -curl binary exists in 1.5 but not 1.4.
ln -s $PRGNAM-x11 $PKG/usr/bin/$PRGNAM
for i in x11 x11-curl gl; do
  [ -e $PKG/usr/bin/$PRGNAM-$i ] && \
    ln -s $PRGNAM.1.gz $PKG/usr/man/man1/$PRGNAM-$i.1.gz
done

# Installed permissions are atrocious (everything 755).
find $PKG -type f | xargs chmod 644
chmod 755 $PKG/usr/bin/*
if [ "$STATIC" != "yes" ]; then
  chmod 755 $PKG/usr/lib$LIBDIRSUFFIX/lib*.so.*.*
fi

# .desktop taken from debian and modified:
# - make it validate.
# - add mime types for cbz and xps.
mkdir -p $PKG/usr/share/applications
cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop

# Icon converted from platform/x11/mupdf.ico, with icotool.
mkdir -p $PKG/usr/share/pixmaps
cat $CWD/$PRGNAM.png > $PKG/usr/share/pixmaps/$PRGNAM.png

# .pc file taken from debian and parameterized.
PCLIBS="-l$PRGNAM -lfreetype -lharfbuzz -ljbig2dec -ljpeg -lcrypto -lopenjp2 -lz -lm"
PCLIBS="$PCLIBS -lmupdfthird"

mkdir -p $PKG/usr/lib$LIBDIRSUFFIX/pkgconfig/
sed -e "s,@LIB@,lib$LIBDIRSUFFIX,g" \
    -e "s,@VERSION@,$VERSION,g" \
    -e "s,@PCLIBS@,$PCLIBS,g" \
    $CWD/$PRGNAM.pc > $PKG/usr/lib$LIBDIRSUFFIX/pkgconfig/$PRGNAM.pc

# 'make install' already installed most of the docs.
cp -a CONTRIBUTORS $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# slack-desc will conveniently say whether javascript is built in,
# and whether libs are shared or static.
mkdir -p $PKG/install
sed -e "s,@LIBTYPE@,$LIBTYPE," \
    $CWD/slack-desc > $PKG/install/slack-desc

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