img-optimize/install-webp.sh

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Bash

#!/bin/bash
# install prerequisites
apt-get install build-essential libjpeg-dev libpng-dev libtiff-dev libgif-dev libwebp-dev tar gzip wget -y
# go into /usr/local/src and remove previous libwebp folder/archive
cd /usr/local/src || exit
rm -rf libwebp*
# download and extract latest libwebp sources
wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz -O libwebp.tar.gz
tar xvzf libwebp.tar.gz
cd libwebp-* || exit
# configure libwebp and launch compilation
./configure --prefix=/usr
make -j "$(nproc)"
make install
strip --strip-unneeded /usr/bin/cwebp