#!/bin/bash
set -e

# M4 source acquisition script
# Downloads and extracts the M4 source code

PACKAGE_NAME="m4"
VERSION="1.4.20"
ARCHIVE_URL="https://ftp.gnu.org/gnu/m4/m4-${VERSION}.tar.xz"
ARCHIVE_NAME="source.tar.xz"
SOURCE_DIR="sources/${PACKAGE_NAME}"

echo "Downloading M4 source code..."
# Download the source archive using HTTPS only
wget -O ${ARCHIVE_NAME} ${ARCHIVE_URL}

echo "Creating source directory..."
mkdir -p ${SOURCE_DIR}

echo "Extracting archive..."
# Extract to the sources directory
tar -xf ${ARCHIVE_NAME} -C ${SOURCE_DIR} --strip-components=1

echo "Cleaning up..."
rm ${ARCHIVE_NAME}

echo "M4 source acquisition complete."