#!/bin/bash

# Slackware build script for avr-gdb

# Written by thorsten

PRGNAM=avr-gdb
VERSION=${VERSION:-10.1}
BUILD=${BUILD:-1}
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 -e

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

CFLAGS_FOR_BUILD="$SLKCFLAGS" \
CXXFLAGS_FOR_BUILD="$SLKCFLAGS" \
../gdb-$VERSION/configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --infodir=/usr/info \
  --mandir=/usr/man \
  --target=avr \
  --disable-nls \
  --enable-languages=c,c++ \
  --with-python=/usr/bin/python3 \
  --with-guile=guile-2.2 \
  --with-system-readline \
  --with-system-gdbinit=/etc/gdb/gdbinit \
  --program-prefix="avr-" \
  --program-suffix="" \
  --build=$ARCH-slackware-linux

make
make install DESTDIR=$PKG

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

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

rm -f $PKG/usr/info/dir
( cd $PKG/usr/info
  for i in *; do mv $i avr-$i; gzip -9 avr-$i; done )

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
for file in COPYING* ChangeLog MAINTAINERS README*; do
  cp ../gdb-$VERSION/$file $PKG/usr/doc/$PRGNAM-$VERSION
done
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# Remove useless stuff
rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/libiberty.a
rm -rf $PKG/usr/include/gdb
rm -rf $PKG/usr/share/gdb
rm -rf $PKG/usr/share/info
rm -rf $PKG/usr/share/man

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}