#!/bin/sh
#
######################################################
# Build script for RPI                               #
#                                                    #
# See .info for details                              #
######################################################

tce-load -i compiletc squashfs-tools

######################################################
# Configure extension creation parameters            #
######################################################
SRCPATH="../../../sources"

SRCNAM=alsa-lib-1.2.12.tar.bz2
WRKDIR=alsa-lib-1.2.12
EXTNAM=libasound
TMPDIR=/tmp/libasound

######################################################
# Prepare extension creation                         #
######################################################

# Remove dirs and files left from previous creation

rm -r -f $WRKDIR

rm -r -f $TMPDIR
rm -r -f $TMPDIR-dev

# Crete temporary directory

mkdir -p $TMPDIR

######################################################
# Compile extension                                  #
######################################################

# Export variables needed for compilation

case $(find /lib | grep ld-linux) in
	*armhf*)
		export CFLAGS="-Os -pipe -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp"
		export CXXFLAGS="-Os -pipe -fno-exceptions -fno-rtti -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp"
		BITS="linux32"
	;;
	*aarch64*)
		export CFLAGS="-Os -pipe -march=armv8-a+crc -mtune=cortex-a72"
		export CXXFLAGS="-Os -pipe -fno-exceptions -fno-rtti -march=armv8-a+crc -mtune=cortex-a72"
		BITS=""
	;;
esac

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig

# Unpack source in current directory

tar xf ${SRCPATH}/${SRCNAM}

cd $WRKDIR

# Configure it

${BITS} ./configure --prefix=/usr/local --enable-shared --disable-python \
--disable-topology

# Compile

${BITS} make -j6
[ $? -ne 0 ] && exit 1
# Install in base temp dir

${BITS} make install DESTDIR=$TMPDIR

# Delete compilation work directory

cd ..
rm -r -f $WRKDIR

# Adjust directory access rigths

find $TMPDIR/ -type d | xargs chmod -v 755;

# Strip executables

find $TMPDIR | xargs file | grep ELF | cut -f 1 -d : | ${BITS} xargs strip --strip-unneeded

# Pack dev extension

mkdir -p $TMPDIR-dev/usr/local/share
mkdir -p $TMPDIR-dev/usr/local/lib

mv $TMPDIR/usr/local/include $TMPDIR-dev/usr/local
mv $TMPDIR/usr/local/share/aclocal $TMPDIR-dev/usr/local/share
mv $TMPDIR/usr/local/lib/pkgconfig $TMPDIR-dev/usr/local/lib
rm $TMPDIR/usr/local/lib/*.la
rm $TMPDIR/usr/local/lib/alsa-lib/smixer/*.la

# Delete unneded files

rm -r -f $TMPDIR/usr/local/bin
rm -r -f $TMPDIR/usr/local/share

###################################################
# Create base extension in temp dir               #
###################################################

cd $TMPDIR
cd ..
mksquashfs $TMPDIR $EXTNAM.tcz
cd $TMPDIR
find usr -not -type d > $EXTNAM.tcz.list
mv ../$EXTNAM.tcz .

# Create md5 file

md5sum $EXTNAM.tcz > $EXTNAM.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr

###################################################
# Create dev extension in temp dir                #
###################################################

cd $TMPDIR-dev
cd ..
mksquashfs $TMPDIR-dev $EXTNAM-dev.tcz
cd $TMPDIR-dev
find usr -not -type d > $EXTNAM-dev.tcz.list
mv ../$EXTNAM-dev.tcz .

# Create md5 file

md5sum $EXTNAM-dev.tcz > $EXTNAM-dev.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr