install.sh

#!/bin/bash

thisdir=`pwd`

mkdir -p mylibs
### Intalling gzstream (it needs zlib!)
if [[ ! -d  mylibs/gzstream ]]  || [[ ! -f mylibs/gzstream/gzstream.o ]]; then
    
    rm -rf mylibs
    mkdir mylibs
    cd mylibs
     
    wget https://www.cs.unc.edu/Research/compgeom/gzstream/gzstream.tgz 

    if [[ "$?" != 0 ]]; then
	echo "Error downloading gzstream, try again" 
	rm -rf gzstream gzstream.tgz 
	exit
    else
	tar -xvzf gzstream.tgz &> /dev/null
	if [[ "$?" != 0 ]]; then echo " Error during gzstream un-compressing. Exiting now"; exit; fi
	cd gzstream
	make &> /dev/null
	
	if [[ "$?" != 0 ]]; then echo " Error during gzstream compilation. Exiting now"; exit; fi
	test=`make test | grep "O.K" | wc -l`

	if [[ $test == 1 ]]; then echo " "1. gzstream installed; rm ../gzstream.tgz 
	else  echo  " Gzstream test failed. Exiting now"; exit; fi
    fi
fi

cd $thisdir
 
if [[ ! -f mylibs/gzstream/gzstream.o ]]; then 
	echo "  !! Error: gzstream not installed properly!"; 
	exit
fi

cd $thisdir
make