printf 'Stage 1'
make clean
make -f Makefile.old
mv eshtrans.old eshtrans.stage1

printf 'Stage 2'
make clean
cp -p eshtrans.stage1 eshtrans
make
mv eshtrans eshtrans.stage2

printf 'Stage 3'
make clean
cp -p eshtrans.stage2 eshtrans
make
mv eshtrans eshtrans.stage3