get-pngquant

#!/bin/bash

target=$1

if [[ -z $target ]]
then
    echo Usage: $0 TARGET_DIR
    exit 1
fi

set -e

mkdir -p $target

cd $target

wget --continue http://downloads.sourceforge.net/project/libpng/libpng16/1.6.21/libpng-1.6.21.tar.xz
tar -xf libpng-1.6.21.tar.xz

git clone --depth 1 git://github.com/pornel/pngquant.git pngquant

cd libpng-1.6.21
# Build libpng
./configure
make check

cd ../pngquant
# Build pngquant
./configure --with-libpng=../libpng-1.6.21
make