#!/bin/sh
# $Id: yasm.SlackBuild,v 1.7 2009/05/12 20:24:31 root Exp root $
# Copyright (c) 2008 Eric Hameleers <alien@slackware.com>
# Copyright 2010  Patrick Volkerding, Sebeka, MN, USA
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS 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.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:         Eric Hameleers <alien@slackware.com>
# For:        yasm
# Descr:      complete rewrite of the NASM assembler
# URL:        http://www.tortall.net/projects/yasm/
# Needs:      
# Changelog:  
# 0.7.1-1:    16/Jun/2008 by Eric Hameleers <alien@slackware.com>
#             * Initial build.
# 0.7.2-1:    08/dec/2008 by Eric Hameleers <alien@slackware.com>
#             * Update.
# 0.8.0-1:    12/may/2009 by Eric Hameleers <alien@slackware.com>
#             * Update.
# 1.1.0-1:    2010-08-31 by volkerdi@slackware.com
#             * Update.
# 
# Run 'sh yasm.SlackBuild' to build a Slackware package.
# The package (.txz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

PKGNAM=yasm
VERSION=${VERSION:-1.2.0}
BUILD=${BUILD:-2}
TAG=${TAG:-}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i486 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

DOCS="ABOUT-NLS AUTHORS ChangeLog COPYING GNU_* NEWS README *.txt"

# If you want to disable python bindings, set ENABLE_PYTHON to "NO".
# Building python support requires Cython, which is not shipped with Slackware.
ENABLE_PYTHON=${ENABLE_PYTHON:-"'NO"}

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PKGNAM
OUTPUT=${OUTPUT:-/tmp}

SOURCE="$SRCDIR/${PKGNAM}-${VERSION}.tar.xz"
SRCURL="http://www.tortall.net/projects/${PKGNAM}/releases/${PKGNAM}-${VERSION}.tar.gz"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line ${LINENO}" | tee $OUTPUT/error-${PKGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

case "$ARCH" in
  i486)      SLKCFLAGS="-O2 -march=i486 -mtune=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  s390)      SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  powerpc)   SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ;;
  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
esac

# Create working directories:
mkdir -p $OUTPUT          # place for the package to be saved
mkdir -p $TMP/tmp-$PKGNAM # location to build the source
mkdir -p $PKG             # place for the package to be built
rm -rf $PKG/*             # always erase old package's contents
rm -rf $TMP/tmp-$PKGNAM/* # remove the remnants of previous build

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  if ! [ "x${SRCURL}" == "x" ]; then
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename $SOURCE)"
    echo "Source '$(basename ${SOURCE})' not available yet..."
    echo "Will download file to $(dirname $SOURCE)"
    wget -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Downloading '$(basename ${SOURCE})' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '$(basename ${SOURCE})' not available... aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PKGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PKGNAM
echo "Extracting the source archive(s) for $PKGNAM..."
tar xvf ${SOURCE}
cd ${PKGNAM}-${VERSION}
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

if [ "$ENABLE_PYTHON" = "YES" ]; then
  PYTHONSTUFF="--enable-python --enable-python-bindings"
else
  PYTHONSTUFF=""
fi

echo Building ...
LDFLAGS="$SLKLDFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
CFLAGS="$SLKCFLAGS" \
./configure --prefix=/usr \
            --libdir=/usr/lib${LIBDIRSUFFIX} \
            --localstatedir=/var \
            --sysconfdir=/etc \
            --mandir=/usr/man \
            ${PYTHONSTUFF} \
            --program-prefix= \
            --program-suffix= \
            --build=$ARCH-slackware-linux \
            2>&1 | tee $OUTPUT/configure-${PKGNAM}.log
make 2>&1 | tee $OUTPUT/make-${PKGNAM}.log

# Install all the needed stuff to the package dir
# Use installwatch if available, to produce a logfile of the installation
# process that is more easily readable:
if $(which installwatch > /dev/null 2>&1); then
  installwatch -o $OUTPUT/install-${PKGNAM}.log make DESTDIR=$PKG install
else
  make DESTDIR=$PKG install 2>&1 |tee $OUTPUT/install-${PKGNAM}.log
fi

# Add documentation:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PKGNAM-$VERSION || true
cp -a $SRCDIR/$(basename $0) $PKG/usr/doc/$PKGNAM-$VERSION/$PKGNAM.SlackBuild
chown -R root:root $PKG/usr/doc/$PKGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# Remove empty share directory:
rmdir $PKG/usr/share || true

# Compress the man page(s):
if [ -d $PKG/usr/man ]; then
  find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;
  for i in $(find $PKG/usr/man -type l -name "*.?") ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
fi

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

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PKGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txz 2>&1 | tee $OUTPUT/makepkg-${PKGNAM}.log
cd $OUTPUT
md5sum ${PKGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txz > ${PKGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txz.md5
cd -
cat $PKG/install/slack-desc | grep "^${PKGNAM}" > $OUTPUT/${PKGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txt

