#!/bin/sh

# Copyright 2008, 2009  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.


# Sources:
# ftp://ftp.pal.xgw.fi/pub/gnu/alpha/gnu/p2c-1.21alpha2.tar.gz
# ftp://ftp.clara.net/pub/mirrors/gnu/hurd/p2c-1.21alpha2.tar.gz
# ftp://ftp.obspm.fr/pub1/computing/gnu/hurd/p2c-1.21alpha2.tar.gz

VERSION=${VERSION:-1.21alpha2}
ARCH=${ARCH:-i486}
NUMJOBS=${NUMJOBS:-" -j7 "}
BUILD=${BUILD:-3}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
fi

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-p2c

rm -rf $PKG
mkdir -p $TMP $PKG

# Explode the package framework:
cd $PKG
explodepkg $CWD/_p2c.tar.gz

cd $TMP
rm -rf p2c-1.21alpha-07.Dec.93
tar xvf $CWD/p2c-1.21alpha2.tar.gz || exit 1
cd p2c-1.21alpha-07.Dec.93 || exit 1

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

zcat $CWD/p2c_1.21alpha2-2.1.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
zcat $CWD/p2c_time.diff.gz | patch -p0 --verbose --backup --suffix=.orig || exit 1
find . -name "*.orig" | xargs rm --verbose
# Fix library paths:
sed -i -e "s#/lib #/lib${LIBDIRSUFFIX} #g" \
       -e "s#/lib\$#/lib${LIBDIRSUFFIX}#g" \
       -e "s#/lib/#/lib${LIBDIRSUFFIX}/#g" \
        $( grep -lr '/lib' * )

cd src
make OPT="$SLKCFLAGS" || exit 1
make p2cc

mv $PKG/usr/lib $PKG/usr/lib${LIBDIRSUFFIX} 2>/dev/null
cat p2c > $PKG/usr/bin/p2c
cat p2cc > $PKG/usr/bin/p2cc
cat libp2c.a > $PKG/usr/lib${LIBDIRSUFFIX}/libp2c.a
cat p2c.man | gzip -9c > $PKG/usr/man/man1/p2c.1.gz
cat p2cc.man | gzip -9c > $PKG/usr/man/man1/p2cc.1.gz
cat sys.p2crc > $PKG/usr/lib${LIBDIRSUFFIX}/p2c/p2crc
cat loc.p2crc > $PKG/usr/lib${LIBDIRSUFFIX}/p2c/loc.p2crc
cat system.imp > $PKG/usr/lib${LIBDIRSUFFIX}/p2c/system.imp
cat system.m2 > $PKG/usr/lib${LIBDIRSUFFIX}/p2c/system.m2
cat turbo.imp > $PKG/usr/lib${LIBDIRSUFFIX}/p2c/turbo.imp
cat string.pas > $PKG/usr/lib${LIBDIRSUFFIX}/p2c/string.pas
cat p2c.h > $PKG/usr/include/p2c/p2c.h
cd ..

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

mkdir -p $PKG/usr/doc/p2c-1.21alpha2
cp -a \
  README ftp.README \
  $PKG/usr/doc/p2c-1.21alpha2
( cd src
  for file in HISTORY NOTES COPYING INSTALL ; do
    cp -a $file $PKG/usr/doc/p2c-1.21alpha2
  done
)
cp -a src/README $PKG/usr/doc/p2c-1.21alpha2/README.src
cp -a examples $PKG/usr/doc/p2c-1.21alpha2
( cd $PKG/usr/doc/p2c-1.21alpha2
  zcat $CWD/p2c.examples.diff.gz | patch -p1 --verbose || exit 1
) || exit 1
rm -f $PKG/usr/doc/p2c-1.21alpha2/examples/Makefile~
rm -rf $PKG/usr/doc/p2c-1.21alpha2/examples/c

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

# Build the package:
cd $PKG
/sbin/makepkg -l y -c n $TMP/p2c-$VERSION-$ARCH-$BUILD.txz