#!/bin/bash
# ============================================================================
# DarkForge Linux — Phase 3, Chapter 8.21: Binutils (FINAL NATIVE)
# ============================================================================
# Purpose:  Build the FINAL native binutils (assembler, linker, etc.)
#           This replaces the cross-build binutils for the target system.
#           Version 2.46.0 — matches Phase 0 toolchain bootstrap.
# Inputs:   /sources/binutils-2.46.0.tar.xz
# Outputs:  as, ld, ar, ranlib, objdump, nm, etc. in /usr/bin
# Ref:      LFS 13.0 §8.21
# ============================================================================

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

PACKAGE="binutils"
VERSION="2.46.0"

echo "=== Building FINAL NATIVE ${PACKAGE}-${VERSION} (Phase 3 — CRITICAL) ==="

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

# Verify that we're using Zen 5 flags from the environment
echo "Build flags: CFLAGS='${CFLAGS}' CXXFLAGS='${CXXFLAGS}' LDFLAGS='${LDFLAGS}'"

mkdir -v build
cd build

# Configure native binutils with full features for the target system
# --enable-gold: include the gold linker (faster, supports LTO)
# --enable-ld=default: use GNU ld as default (more compatible than gold for now)
# --enable-plugins: support linker plugins for LTO
# --disable-werror: don't fail on compiler warnings
# --with-system-zlib: use system zlib for compression
../configure \
    --prefix=/usr \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --enable-gold \
    --enable-ld=default \
    --enable-plugins \
    --disable-werror \
    --with-system-zlib

make
make install

# Install LTO support
install -Dm644 ../include/plugin-api.h /usr/include/plugin-api.h

# Verify binutils installation
echo "Binutils version: $(ld --version | head -1)"
echo "as version: $(as --version | head -1)"

cd "${SRCDIR}"
pkg_cleanup "${PACKAGE}-${VERSION}"
echo "=== FINAL NATIVE ${PACKAGE}-${VERSION} complete ==="