#!/bin/sh
 
# Heavily based on the Slackware 13.37 SlackBuild (v1)
# Written by Vito Magnanimo ( Vito [at] Slacky [dot] it )
 
# Slackware build script for avr-gcc
# Official Site: gcc.gnu.org/


# 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.
 
set -e



PKGNAME=avr-gcc
VERSION=${VERSION:-4.3.3}
BUILD=${BUILD:-2}
TAG=${TAG:-sl}
ARCH=${ARCH:-i486}
SOURCE1="ftp://ftp.gnu.org/pub/gnu/gcc/gcc-$VERSION/gcc-core-$VERSION.tar.bz2"
SOURCE2="ftp://ftp.gnu.org/pub/gnu/gcc/gcc-$VERSION/gcc-g++-$VERSION.tar.bz2"


CWD=$(pwd)
TMP=${TMP:-/tmp/buildpkgs/$PKGNAME}
PKG=$TMP/package-$PKGNAME
OUTPUT=${OUTPUT:-$CWD}
TAR1=${TAR1:-$(basename $SOURCE1)}
TAR2=${TAR2:-$(basename $SOURCE2)}

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


if [ ! -e "$CWD/$TAR1" ];then
  wget "$SOURCE1" -O "$CWD/$TAR1"
fi


if [ ! -e "$CWD/$TAR2" ];then
  wget "$SOURCE2" -O "$CWD/$TAR2"
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf gcc-$VERSION avr-gcc-build-$VERSION
tar xjvf $CWD/gcc-core-$VERSION.tar.bz2 
tar xjvf $CWD/gcc-g++-$VERSION.tar.bz2 
mkdir avr-gcc-build-$VERSION
cd avr-gcc-build-$VERSION

chown -R root:root .
chmod -R u+w,go+r-w,a-s .


CFLAGS_FOR_BUILD="$SLKCFLAGS" \
CXXFLAGS_FOR_BUILD="$SLKCFLAGS" \
../gcc-$VERSION/configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --infodir=/usr/info \
  --mandir=/usr/man \
  --enable-languages=c,c++ \
  --disable-nls \
  --disable-libssp \
  --with-system-zlib \
  --enable-version-specific-runtime-libs \
  --target=avr \
  --program-prefix="avr-" \
  --program-suffix="" \
  --build=$CHOST-slackware-linux


make
make install DESTDIR=$PKG

rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/libiberty.a
rm -rf $PKG/usr/info
rm -rf $PKG/usr/include
rm -rf $PKG/usr/share
rm -rf $PKG/usr/man/man7
rm -rf $PKG/usr/libexec/gcc/avr/$VERSION/install-tools

mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION
for file in COPYING* ChangeLog MAINTAINERS NEWS README*; do
  cp ../gcc-$VERSION/$file $PKG/usr/doc/$PKGNAME-$VERSION
done
 
cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/$PKGNAME.SlackBuild
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/slack-desc


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

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


mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
[ -e $CWD/doinst.sh ] && cat $CWD/doinst.sh > $PKG/install/doinst.sh



cd $PKG
chown -R root:root $PKG
 
if [ -x "$(which requiredbuilder 2>/dev/null)" ];then
  requiredbuilder -y -v -s $CWD $PKG   # add "-c -b" if you have binary files in /usr/share 
fi
 
/sbin/makepkg -l y -c n $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}
 
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP
fi