#!/usr/bin/make -f
# -*- makefile -*-
# Copyright © 2010-2019 Stephen Kitt <skitt@debian.org>
#
# This program is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This package is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.

# Disable package mangling in Launchpad; it currently fails to parse
# Built-Using, which results in build failures
export NO_PKG_MANGLE=1

include /usr/share/dpkg/default.mk

top_dir := $(shell pwd)
binutils_dir := /usr/src/binutils
upstream_dir := $(top_dir)/upstream
build_dir := $(top_dir)/build
source_version := $(shell dpkg-query -W -f="\$${Version}" binutils-source)
deb_version := $(source_version)+$(DEB_VERSION)
deb_upstream_version := $(shell echo $(deb_version) | cut -d- -f1)
gnu_upstream_version := $(shell echo $(deb_upstream_version) | cut -d. -f1-3)

targets := i686-w64-mingw32 x86_64-w64-mingw32 x86_64-w64-mingw32ucrt

export DEB_BUILD_MAINT_OPTIONS = hardening=+all

PF := /usr
confflags = \
	--build=$(DEB_BUILD_GNU_TYPE) \
	--host=$(DEB_HOST_GNU_TYPE) \
	--target=$(1) \
	--prefix=$(PF) \
	--bindir=$(PF)/bin \
	--libdir=$(PF)/$(1)/lib \
	--libexecdir=$(PF)/$(1)/lib \
	--disable-compressed-debug-sections \
	--disable-dependency-tracking \
	--disable-maintainer-mode \
	--disable-multilib \
	--disable-silent-rules \
	--disable-werror \
	--disable-x86-used-note \
	--enable-deterministic-archives \
	--enable-lto \
	--enable-plugins \
	--enable-threads \
	--with-system-zlib

%:
	dh $@ --without autoreconf

spelling = grep -rl '$(1)' $(upstream_dir) | xargs sed -i 's/$(1)/$(2)/g' 2>/dev/null || echo '*** Misspelling "$(1)" not found. ***'

.PHONY: unpack
unpack:
	tar xf $(binutils_dir)/binutils-$(gnu_upstream_version).tar.*
	rm -rf $(upstream_dir)
	mv binutils-* $(upstream_dir)
# Revert the ldscripts location patch so we avoid conflicting with binutils
	patch -d $(upstream_dir) -R -p1 < /usr/src/binutils/patches/001_ld_makefile_patch.patch
# Apply our patches
	QUILT_SERIES=debian/patches/series QUILT_PATCHES=debian/patches quilt push -a
# On big-endian architectures, disable the codeview tests
	if [ "$(DEB_HOST_ARCH_ENDIAN)" = "big" ]; then \
		rm -f $(upstream_dir)/gas/testsuite/gas/i386/codeview.exp; \
		rm -f $(upstream_dir)/ld/testsuite/ld-pe/pdb.exp; \
	fi
# Spelling fixes
	@$(call spelling,allows to,allows one to)
	@$(call spelling,complier,compiler)
	@$(call spelling,explict,explicit)
	@$(call spelling,extention,extension)
	@$(call spelling,maching,matching)
	@$(call spelling,preceeded,preceded)
	@$(call spelling,refered,referred)
	@$(call spelling,specifed,specified)
	@$(call spelling,supressed,suppressed)
	@$(call spelling,targetted,targeted)

override_dh_clean:
	dh_clean
	rm -rf .pc $(build_dir) $(upstream_dir) $(patsubst %,debian/%-dllwrap.1,$(targets))

# Unpack before autotools
override_dh_update_autotools_config: unpack
	dh_update_autotools_config

override_dh_auto_configure:
	set -e; \
	for target in $(targets); do \
		mkdir -p $(build_dir)/$$target; \
		cd $(build_dir)/$$target; \
		$(upstream_dir)/configure $(call confflags,$$target); \
	done

override_dh_auto_build-arch:
	set -e; \
	for target in $(targets); do \
		dh_auto_build --parallel -B$(build_dir)/$$target; \
	done

# The test suite can't run in parallel (it fails because of libbfd.tmp)
# It also expects SOURCE_DATE_EPOCH to *not* be set
override_dh_auto_test-arch:
	set -e; \
	unset CFLAGS CPPFLAGS LDFLAGS SOURCE_DATE_EPOCH; \
	for target in $(targets); do \
		dh_auto_test --no-parallel -B$(build_dir)/$$target; \
	done

override_dh_auto_install-arch:
	for target in $(targets); do \
		dh_auto_install -B$(build_dir)/$$target; \
	done

# Drop unused files
	rm -rf debian/tmp/usr/x86_64-w64-mingw32*/lib/ldscripts/i386pe.*

# Drop files which will conflict with other packages
	rm -rf debian/tmp/usr/lib/*.a
	rm -rf debian/tmp/usr/share/info
	rm -rf debian/tmp/usr/share/locale

# Copy the dllwrap manpages
	for target in $(targets); do \
		cp debian/dllwrap.1 debian/$$target-dllwrap.1; \
	done

override_dh_install-arch:
	dh_install -a

# Symlink duplicates — see https://wiki.debian.org/dedup.debian.net
# We remove hardlinks too, otherwise one of the ld hardlinks is left alone and
# isn't symlinked
	for install in debian/*.install; do \
		rdfind -outputname /dev/null -removeidentinode false -makesymlinks true $${install%%.*}; \
		symlinks -r -s -c $${install%%.*}; \
	done

override_dh_installchangelogs:
	dh_installchangelogs $(upstream_dir)/ChangeLog

override_dh_gencontrol:
	dh_gencontrol -- -v$(deb_version) -Vlocal:Version=$(deb_upstream_version) -Vbinutils:Version=$(source_version)