#!/bin/bash
## Version: 1.6 GSB Package SlackBuild.
## Copyright (c) 2007 Darren 'Tadgy' Austin <darren (at) gnomeslackbuild.org>
## Copyright (c) 2007 Steve Kennedy <sk238 (at) exeter.ac.uk>
##
## Licenced under the terms of the GNU General Public Licence version 3.
##

## Package variables.
BUILD=2gsb
VERSION=1.38.0
RELEASE=$(echo ${VERSION//./_} | cut -f1,2 -d_)

echo
echo "Version: ${VERSION}"
echo "Release: ${RELEASE}"

## List any packages here that are required to build this package.
## The list is space seperated and case sensitive.
REQUIRED_PACKAGES="boost-jam python libicu"

## Build variables.
ARCH=${ARCH:-i586}
TUNE=${TUNE:-i586}
DISTRO=${DISTRO:-slackware}
TMP=${TMP:-/tmp}
PKGDEST=${PKGDEST:-$TMP}

BUILD_ARCH=$(arch)
if [ "$ARCH" != "$BUILD_ARCH" ]; then
  cat << EOF

** Notice ******************************************************
*
* Boost can only be built with a target that matches the
* host architecture. This package will be built for $BUILD_ARCH.
*
****************************************************************

EOF
fi

## Script variables.
PKGNAME=$(basename $0 .SlackBuild)
PKG=$TMP/package-$PKGNAME
CWD=$(pwd)
NOCLEANUP=0
FORCEBUILD=0

## Usage.
function usage() {
  cat << EOF
Usage: ${0##*/} [options]

Options:  --force       The package will not be built if a package of the same
                        name is already installed, or any of the packages
                        required to build are missing.  This option over-rides
                        these checks and attempts a build anyway.
          --no-cleanup  By default any temporary source, build and package
                        directories will be deleted once the package is built.
                        This option prevents those files from being removed.
          --help        Show this help screen.
EOF
}

## Parse command line arguments.
while [ $# -gt 0 ]; do
  if [ "$1" = "-force" ] || [ "$1" = "--force" ]; then
    FORCEBUILD=1
    shift
  elif [ "$1" = "-no-cleanup" ] || [ "$1" = "--no-cleanup" ]; then
    NOCLEANUP=1
    shift
  elif [ "$1" = "-help" ] || [ "$1" = "--help" ]; then
    usage
    exit 0
  else
    echo "${0##*/}: Unknown option: $1"
    exit 1
  fi
done

## Package requirements and installation checks.
[ "$FORCEBUILD" = "0" ] && {
  function check_installed() {
    ls -1 /var/log/packages | grep "^${1}-[^-]*-[^-]*-[^-]*$" >/dev/null 2>&1
    return $?
  }

  check_installed "$PKGNAME" && {
    echo "${0##*/}: Remove installed '$PKGNAME' package before build."
    exit 1
  }

  for REQ in $REQUIRED_PACKAGES; do
    check_installed "$REQ" || {
      echo "${0##*/}: Required package '$REQ' not installed."
      exit 1
    }
  done
}

## Temporary space and package storage.
mkdir -p $TMP
rm -rf $PKG
mkdir -p $PKG
mkdir -p $PKG/install
mkdir -p $PKGDEST

## Decompress archive.
cd $TMP &&
rm -rf ${PKGNAME}_${VERSION} &&
rm -rf ${PKGNAME}-${VERSION} &&
tar xjf $CWD/${PKGNAME}_${VERSION//./_}.tar.bz2 &&
mv ${PKGNAME}_${VERSION//./_} $PKGNAME-$VERSION &&
cd ${PKGNAME}-${VERSION} || exit 1

# Apply ARCH specific patches.
if [ "$ARCH" = "i386" ]; then
  echo "${0##*/}: Applying any patches for $ARCH"
  #cat $CWD/patches/foo.patch | patch -p0 --verbose
elif [ "$ARCH" = "i486" ]; then
  echo "${0##*/}: Applying any patches for $ARCH"
  #cat $CWD/patches/foo.patch | patch -p0 --verbose
elif [ "$ARCH" = "i586" ]; then
  echo "${0##*/}: Applying any patches for $ARCH"
  #cat $CWD/patches/foo.patch | patch -p0 --verbose
elif [ "$ARCH" = "i686" ]; then
  echo "${0##*/}: Applying any patches for $ARCH"
  #cat $CWD/patches/foo.patch | patch -p0 --verbose
elif [ "$ARCH" = "x86_64" ]; then
  echo "${0##*/}: Applying any patches for $ARCH"
  #cat $CWD/patches/foo.patch | patch -p0 --verbose
elif [ "$ARCH" = "powerpc" ]; then
  echo "${0##*/}: Applying any patches for $ARCH"
  #cat $CWD/patches/foo.patch | patch -p0 --verbose
fi

if [ "$VERSION" = "1.36.0" ]; then
  ## These are official boost c++ hotfix patches for 1.36
  ## Restore deprecated basic_directory_entry functions inadvertently omitted from 1.36.0. 
  patch -p2 < $CWD/patches/boost.basic_directory_entry.patch || exit 1 
  ## Fix problem with case-insensitive alternation in Xpressive library
  patch -p2 < $CWD/patches/boost.case_sensitive.patch || exit 1
  ## Fix filesystem/convenience.hpp compile errors when BOOST_FILESYSTEM_NO_DEPRECATED is defined. 
  patch -p2 < $CWD/patches/boost.convenience.patch || exit 1
  ## Restore deprecated functions has_branch_path and has_leaf, inadvertently omitted from 1.36.0 
  patch -p2 < $CWD/patches/boost.has_leaf.patch || exit 1
  ## Revert remove changes inadvertently committed by 47006 and apply ticket #1972 remove fixes. 
  patch -p2 < $CWD/patches/boost.remove-changes.patch || exit 1
fi;

if [ "$VERSION" = "1.38.0" ]; then
  ## fix broken ifdef in function_template.hpp
  patch -p1 < $CWD/patches/boost_function_template_ifdef.patch || exit 1;
fi;

## Fix permissions for building.
chown -R root.root .
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;

## Configure, Tuning, GCC and Make options.
CONFIGURE_FLAGS=${GSB_CONFIGURE_FLAGS:-""}
if [ "$ARCH" = "i386" ]; then
  TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O2 -march=$ARCH -mtune=$TUNE"}
elif [ "$ARCH" = "i486" ]; then
  TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O2 -march=$ARCH -mtune=$TUNE"}
elif [ "$ARCH" = "i586" ]; then
  TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O3 -march=$ARCH -mtune=$TUNE -pipe -fomit-frame-pointer"}
elif [ "$ARCH" = "i686" ]; then
  TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O3 -march=$ARCH -mtune=$TUNE -pipe -fomit-frame-pointer"}
elif [ "$ARCH" = "x86_64" ]; then
  if [ "$TUNE" = "k8" -o "$TUNE" = "opteron" -o "$TUNE" = "athlon64" -o "$TUNE" = "athlon-fx" ]; then
    TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O3 -march=$TUNE -mtune=$TUNE -pipe -fomit-frame-pointer -fPIC"}
  else
    TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O3 -march=k8 -mtune=k8 -pipe -fomit-frame-pointer -fPIC"}
  fi
  [ -z "$CONFIGURE_FLAGS" ] && {
    CONFIGURE_FLAGS="--libdir=$PKG/usr/lib64"
    LIBDIR=lib64
  }
  LIBDIR=lib64
elif [ "$ARCH" = "powerpc" ]; then
  TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O2 -march=$ARCH"}
else
  TUNE_CFLAGS=${GSB_TUNE_CFLAGS:-"-O2"}
fi
EXTRA_CFLAGS=${GSB_EXTRA_CFLAGS:-""}
MAKE_FLAGS=${GSB_MAKE_FLAGS:-""}
LIBDIR=${LIBDIR:-"lib"}

## Configure.
export EXPAT_INCLUDE=/usr/include 
export EXPAT_LIBPATH=/usr/${LIBDIR} 
CFLAGS="$TUNE_CFLAGS $EXTRA_CFLAGS" CXXFLAGS="$TUNE_CFLAGS $EXTRA_CFLAGS" \
  ./configure --prefix=$PKG/usr \
  --exec-prefix=$PKG/usr \
  $CONFIGURE_FLAGS \
  --with-toolset=gcc \
  --with-bjam=/usr/bin/bjam \
  --with-icu \
  || exit 1

## Build and install.
make $MAKE_FLAGS &&
make $MAKE_FLAGS install || exit 1

## Remove static, debug, and duplicate libraries
find $PKG/usr -name "*.a" -exec rm -f {} \; &&
find $PKG/usr -name "libboost_*-d-*" -exec rm -f {} \; &&
find $PKG/usr -name "libboost_*-d.so" -exec rm -f {} \; &&
find $PKG/usr -name "libboost_*-mt-d*" -exec rm -f {} \; &&
find $PKG/usr -name "libboost_*gcc??.so" -exec rm -f {} \; || exit 1

## Add some library softlinks
( cd $PKG/usr/${LIBDIR}
  for i in $(find . -name "libboost_*-mt-*.${VERSION}")
  do
    ## For library basenames
    ln -sf $i $(echo $i | cut -d\- -f1).so &&
    ln -sf $i $(echo $i | cut -d\- -f1)-mt.so || exit 1
  done

  for i in $(find . -name "libboost_*-gcc??-mt.so")
  do
    ## Overwrite duplicate copies of libraries with softlinks
    ln -sf $(basename $i .so)-${RELEASE}.so.${VERSION} $i || exit 1
  done ) || exit 1

## Add boost include directory.
(cd $PKG/usr/include && ln -sf ${PKGNAME}-${RELEASE}/boost boost) || exit 1

## Strip debugging symbols.
{ find $PKG | xargs file | egrep "executable|shared object" | grep "ELF" | \
  cut -d: -f1 | xargs strip --strip-unneeded ; } 2>/dev/null

## Compress and fix manpage links.
[ -e $PKG/usr/man ] && {
  find $PKG/usr/man -type f -name \*.? -exec gzip -9f {} \;
  find $PKG/usr/man -type l -name \*.? -printf \
    "( cd '%h'; [ -e '%l.gz' ] &&
     { rm -f '%f'; ln -sf '%l.gz' '%f.gz'; } );\n" | bash
}

## Deal with .info files.
[ -e $PKG/usr/info ] && {
  rm -f $PKG/usr/info/dir
  gzip -9 $PKG/usr/info/*.info
}

## Copy extra documentation into package.
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION
cp -a \
  README LICENSE_1_0.txt \
  $PKG/usr/doc/$PKGNAME-$VERSION
find $PKG/usr/doc/$PKGNAME-$VERSION/ -type f -exec chmod 644 {} \;
chown -R root:root $PKG/usr/doc/$PKGNAME-$VERSION

## Package meta files
for FILE in doinst.sh slack-desc slack-required slack-conflicts slack-suggests
do
  [ -e $CWD/$FILE ] && {
    cat $CWD/$FILE >>$PKG/install/$FILE
  }
done

## Create the package
cd $PKG
makepkg -p -l y -c n $PKGDEST/$PKGNAME-${VERSION}-$ARCH-$BUILD.tgz

## Cleanup
[ "$NOCLEANUP" = "0" ] && {
  rm -rf $PKG $TMP/${PKGNAME}-${VERSION}
}