RE2 compile from source: tested debian

re2_init.sh

#!/bin/bash

RE2_VERSION=${RE2_VERSION:-2023-03-01}

## Utilities ##
download() {
    if [ -z "$1" ]; then
        echo "download() requires a URL as first argument"
        exit 1
    fi
    if [ -z "$2" ]; then
        echo "download() requires a destination directory as second argument"
        exit 1
    fi
    if [ ! -d "$2" ]; then
        echo "$2 is not a directory"
        exit 1
    fi

    if command -v curl >/dev/null; then
        cd "$2" || (echo "Could not cd to $2" && exit 1)
        # older versions of curl don't support --output-dir
        curl -sSLO --fail --remote-name "$1"
        cd - >/dev/null || exit
    elif command -v wget >/dev/null; then
        wget -nv -P "$2" "$1"
    else
        echo "Neither curl nor wget is available, cannot download files."
        exit 1
    fi
}
# Download RE2
download "https://github.com/google/re2/archive/refs/tags/${RE2_VERSION}.tar.gz" "/tmp"
# Exract RE2
sudo tar -C /opt/ -xzf "/tmp/${RE2_VERSION}.tar.gz"
# Elevate permissions and run make install within output dir
sudo su -c "cd /opt/re2-${RE2_VERSION} && make install"