#!/bin/sh
#
######################################################
# Build script                                       #
#                                                    #
# See .info for details                              #
#                                                    #
# LTO COMPATIBLE but don't decrease size             #
# GOLD COMPATIBLE !!!                                #
#                                                    #
######################################################

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

SRCNAM=isl-0.20.tar.xz
WRKDIR=isl-0.20
EXTNAM=isl
TMPDIR=/tmp/isl

######################################################
# 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

export CFLAGS="-O2 -pipe -march=armv8-a+crc -mtune=cortex-a53 -use-ld=gold"
export CXXFLAGS="-O2 -pipe -fno-exceptions -fno-rtti -march=armv8-a+crc -mtune=cortex-a53 -fuse-ld=gold"

# Unpack source in current directory

tar -xf $SRCNAM

# Configure it

cd $WRKDIR
./configure \
--prefix=/usr/local \
--enable-static \
--enable-shared

# Compile

make -j1

# Install in base temp dir

make install DESTDIR=$TMPDIR

mkdir -p $TMPDIR/usr/local/share/licences/flex
mv $TMPDIR/usr/local/share/doc/flex/COPYING $TMPDIR/usr/local/share/licences/flex

# Add LICENSE

mkdir -p $TMPDIR/usr/local/share/licences/$EXTNAM
cp LICENSE $TMPDIR/usr/local/share/licences/$EXTNAM

# 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 dev extension

mkdir -p $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/*.a $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/*.la $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/*.py $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/lib/pkgconfig $TMPDIR-dev/usr/local/lib
mv $TMPDIR/usr/local/include $TMPDIR-dev/usr/local

###################################################
# 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