#!/bin/bash
# ============================================================================
# DarkForge Linux — Phase 3, Chapter 8.6: Zlib
# ============================================================================
# Purpose:  Build and install zlib compression library (native version).
#           This is a critical dependency for many tools (binutils, gcc, etc.)
# Inputs:   /sources/zlib-1.3.2.tar.xz
# Outputs:  /usr/lib/libz.so.1, /usr/include/zlib.h
# Ref:      LFS 13.0 §8.6
# ============================================================================

set -euo pipefail
source /sources/toolchain-scripts/100-chroot-env.sh

PACKAGE="zlib"
VERSION="1.3.2"

echo "=== Building ${PACKAGE}-${VERSION} (Phase 3) ==="

pkg_extract "${PACKAGE}-${VERSION}.tar.xz"
cd "${PACKAGE}-${VERSION}"

# Configure zlib for the target system
# --prefix=/usr: Install to standard location
./configure --prefix=/usr

# Build zlib
make

# Run basic tests to ensure build is correct
make check

# Install zlib
make install

# Zlib installs some files to /usr/lib with incorrect permissions
# Make them writable (they're .a and .so files)
chmod -v 755 /usr/lib/libz.so.1.3.2
ln -sfv libz.so.1.3.2 /usr/lib/libz.so
ln -sfv libz.so.1.3.2 /usr/lib/libz.so.1

pkg_cleanup "${PACKAGE}-${VERSION}"
echo "=== ${PACKAGE}-${VERSION} complete ==="