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

######################################################
# Configure extension creation parameters            #
######################################################

SRCNAM=alsa-lib-1.1.0.tar.bz2
WRKDIR=alsa-lib-1.1.0
EXTNAM_LIBASOUND=libasound
EXTNAM_ALSA=alsa
TMPDIR=/tmp/alsa-lib
TMPDIR_LIBASOUND=/tmp/libasound
TMPDIR_ALSA=/tmp/alsa

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

# Remove dirs and files left from previous creation

rm -r -f $WRKDIR

rm -r -f $TMPDIR
rm -r -f $TMPDIR_LIBASOUND
rm -r -f $TMPDIR_ALSA-dev

# Crete temporary directory

mkdir -p $TMPDIR

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

# Export variables needed for compilation

export CFLAGS="-O2 -pipe -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp"
export CXXFLAGS="-O2 -pipe -fno-exceptions -fno-rtti -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp"

# Unpack source in current directory

tar -xf $SRCNAM

# Configure it

cd $WRKDIR
./configure --prefix=/usr/local

# Compile

make -j4

# Install in base temp dir

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 : | xargs strip --strip-unneeded

# Move files to libasound

mkdir -p $TMPDIR_LIBASOUND/usr/local/lib/alsa-lib/smixer
mv $TMPDIR/usr/local/lib/*.so* $TMPDIR_LIBASOUND/usr/local/lib
mv $TMPDIR/usr/local/lib/alsa-lib/smixer/*.so $TMPDIR_LIBASOUND/usr/local/lib/alsa-lib/smixer

# Move files to alsa-dev

mkdir -p $TMPDIR_ALSA-dev/usr/local/share
mv $TMPDIR/usr/local/include $TMPDIR_ALSA-dev/usr/local
mv $TMPDIR/usr/local/lib $TMPDIR_ALSA-dev/usr/local
mv $TMPDIR/usr/local/share/aclocal $TMPDIR_ALSA-dev/usr/local/share

###################################################
# Create libasound extension in temp dir          #
###################################################

cd $TMPDIR_LIBASOUND
cd ..
mksquashfs $TMPDIR_LIBASOUND $EXTNAM_LIBASOUND.tcz
cd $TMPDIR_LIBASOUND
find usr -not -type d > $EXTNAM_LIBASOUND.tcz.list
mv ../$EXTNAM_LIBASOUND.tcz .

# Create md5 file

md5sum $EXTNAM_LIBASOUND.tcz > $EXTNAM_LIBASOUND.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr

###################################################
# Create alsa-dev extension in temp dir           #
###################################################

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

# Create md5 file

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

# Cleanup temp directory

rm -r -f usr