#!/bin/bash
# ============================================================================
# DarkForge Linux — Phase 0, Chapter 7: Zlib (Chroot)
# ============================================================================
# Purpose:  Build zlib inside the chroot. The binutils linker (ld) from pass 2
#           was built with zlib support and dynamically links against libz.so.1.
#           Without zlib installed, ld fails with:
#             "error while loading shared libraries: libz.so.1"
#           This must be the FIRST thing built in the chroot, before any
#           package that needs to link (i.e., everything).
# Inputs:   /sources/zlib-1.3.2.tar.xz
# Outputs:  /usr/lib/libz.so.1
# Assumes:  Running inside chroot
# ============================================================================

set -euo pipefail

PACKAGE="zlib"
VERSION="1.3.2"

echo "=== Building ${PACKAGE}-${VERSION} (Chroot — ld dependency) ==="

cd /sources
tar -xf "${PACKAGE}-${VERSION}.tar.xz"
cd "${PACKAGE}-${VERSION}"

./configure --prefix=/usr

make
make install

# Verify libz.so.1 exists
if [ -f /usr/lib/libz.so.1 ]; then
    echo "  PASS: /usr/lib/libz.so.1 exists"
else
    echo "  FAIL: /usr/lib/libz.so.1 NOT FOUND after install!"
    exit 1
fi

cd /sources
rm -rf "${PACKAGE}-${VERSION}"
echo "=== ${PACKAGE}-${VERSION} complete ==="