#!/usr/bin/make -f
# -*- makefile -*-
# Makefile to build the openttd debian package.

# Use debhelper default for all targets (but some are overridden below).
binary binary-arch binary-indep build build-arch build-indep clean install install-arch install-indep:
	dh $@

include /usr/share/dpkg/architecture.mk
# Introduced in dpkg 1.19.0
-include /usr/share/dpkg/buildtools.mk

# Set by buildtools.mk to support cross-compilation, but provide a
# default for older dpkg versions
PKG_CONFIG ?= pkg-config

ifneq ($(DEB_HOST_GNU_TYPE),$(DEB_BUILD_GNU_TYPE))
CROSS= --build $(DEB_BUILD_GNU_TYPE) --host $(DEB_HOST_GNU_TYPE)
endif

# This prevents linking uselessly to libicudata and silences a warning
# in the build process.
DEB_LDFLAGS_MAINT_APPEND="-Wl,-as-needed"

# Enable all hardening options (since openttd offers a network-listening
# service that handles untrusted data).
DEB_BUILD_MAINT_OPTIONS=hardening=+all

# Load buildflags (this uses dpkg-buildflags). Note that we don't export
# them, but instead pass them to ./configure explicitly.
include /usr/share/dpkg/buildflags.mk

# Pass custom options to configure. Since it's not autoconf but a custom
# script, some of the option names are slightly different. We also need
# to be explicit about the dependencies, in case we're not running in a
# clean build root.
override_dh_auto_configure:
	./configure $(CROSS) --prefix-dir=/usr --install-dir=debian/tmp --menu-group="Game;StrategyGame;" \
	--without-allegro --with-zlib --with-sdl --with-png --with-freetype --with-fontconfig \
	--with-icu-sort --without-icu-layout --with-liblzo2 --with-liblzma --without-iconv --with-xdg-basedir \
	--disable-strip --pkg-config=$(PKG_CONFIG) \
	CFLAGS="$(CFLAGS) $(CPPFLAGS)" \
	CXXFLAGS="$(CXXFLAGS) $(CPPFLAGS)" \
	LDFLAGS="$(LDFLAGS)" \
	CFLAGS_BUILD="$(CFLAGS) $(CPPFLAGS)" \
	CXXFLAGS_BUILD="$(CXXFLAGS) $(CPPFLAGS)" \
	LDFLAGS_BUILD="$(LDFLAGS)"

# Do some extra installation
override_dh_auto_install:
	$(MAKE) install DO_NOT_INSTALL_CHANGELOG=1 DO_NOT_INSTALL_LICENSE=1

GRF=bin/baseset/openttd.grf
GRF_BACKUP=debian/openttd.grf

override_dh_auto_build:
	# Remove the prebuilt grf file, to force a rebuild from source
	# (but do keep a backup, so the clean rule can restore it as
	# required by the policy).
	[ -f "$(GRF_BACKUP)" ] || mv "$(GRF)" "$(GRF_BACKUP)"

	# Use dh_auto_build so it handles parallel building
	# automatically.
ifneq (,$(filter terse,$(DEB_BUILD_OPTIONS)))
	dh_auto_build
else
	dh_auto_build -- VERBOSE=1
endif

override_dh_auto_clean:
	dh_auto_clean

	[ ! -f "$(GRF_BACKUP)" ] || mv "$(GRF_BACKUP)" "$(GRF)"

# dh_strip automatically generates a -dbgsym package by default. Let it
# include Replaces and Breaks headers against the previously manually
# generated -dbg package.
override_dh_strip:
	dh_strip --dbgsym-migration='openttd-dbg (<< 1.7.1-1~)'