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#!/bin/sh
# download, build and install the zstd library
version=1.4.5
dir=tmp-cached-zstd
stamp="$dir/.last-build-zstd"
here=`pwd`
set -e
if [ -d "$dir" -a -f "$stamp" ]; then
echo "Using valid cache for $dir, built" `cat "$stamp"`
cd "$dir"
cd zstd-${version}
sudo make install PREFIX=/usr
exit 0
fi
echo "No or stale cache for $dir, rebuilding"
rm -rf "$dir"
mkdir "$dir"
cd "$dir"
wget https://github.com/facebook/zstd/archive/v${version}.tar.gz
tar xf v${version}.tar.gz
cd zstd-${version}
make
sudo make install PREFIX=/usr
date > "$here/$stamp"
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