#!/bin/sh

# Slackware build script for pkgconf

# Copyright 2016-2019 Hunter Sezen California, 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.

PRGNAM=pkgconf
VERSION=${VERSION:-1.6.0}
BUILD=${BUILD:-2}
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 -eu

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.xz
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 {} \;

[ "${DEBUG:=0}" != 0 ] &&
  SLKCFLAGS="$(printf %s "$SLKCFLAGS" | sed 's/-O2/-O0 -g/')"

autoreconf -fi

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --with-pkg-config-dir=/usr/local/lib${LIBDIRSUFFIX}/pkgconfig:/usr/local/share/pkgconfig:/usr/lib${LIBDIRSUFFIX}/pkgconfig:/usr/share/pkgconfig \
  --with-system-libdir=/usr/local/lib${LIBDIRSUFFIX}:/lib${LIBDIRSUFFIX}:/usr/lib${LIBDIRSUFFIX} \
  --disable-static \
  --build=$ARCH-slackware-linux

make
make install DESTDIR=$PKG

( cd $PKG/usr/bin; ln -sf $PRGNAM pkg-config )

if [ "$ARCH" = x86_64 ]; then
  if [ -f /usr/lib/libgcc_s.so ]; then
    arch='i586 x86_64'
  else
    arch=x86_64
  fi
else
  arch=i586
fi

platform=slackware-linux-gnu

# adapted from fedora
eval "set -- $arch"
for i do
  case "$i" in
    i586) libdir= ;;
    x86_64) libdir=64 ;;
  esac

  sed -e "s|@TARGET_PLATFORM@|$i-$platform|" \
      -e "s|@PKGCONF_LIBDIRS@|/usr/local/lib$libdir/pkgconfig:/usr/local/share/pkgconfig:/usr/lib$libdir/pkgconfig:/usr/share/pkgconfig|" \
      -e "s|@PKGCONF_SYSLIBDIR@|/usr/local/lib$libdir:/lib$libdir:/usr/lib$libdir|" \
      -e "s|@PKGCONF_SYSINCDIR@|/usr/local/include:/usr/include|" \
      < $CWD/platform-pkg-config.in \
      > $PKG/usr/bin/$i-$platform-pkg-config
  chmod 0755 $PKG/usr/bin/$i-$platform-pkg-config
done

if [ "$DEBUG" = 0 ]; then
  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
fi

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS COPYING NEWS README.md $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$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:-tgz}