#!/usr/bin/make -f
# -*- makefile -*-
# Copyright 2006, Kurt Roeckx <kurt@roeckx.be>

# Based on the sample file from dh-make:
# Sample debian/rules that uses debhelper.
# This file was originally written by Joey Hess and Craig Small.
# As a special exception, when this file is copied by dh-make into a
# dh-make output file, you may use that output file without restriction.
# This special exception was added by Craig Small in version 0.37 of dh-make.

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1

DISTRO = $(shell lsb_release -is)

# These are used for cross-compiling and for saving the configure script
# from having to guess our platform (since we know it already)
DEB_HOST_GNU_TYPE   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_BUILD_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
DEB_HOST_MULTIARCH  ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

ifeq ($(DEB_BUILD_GNU_TYPE), $(DEB_HOST_GNU_TYPE))
        confflags += --build=$(DEB_HOST_GNU_TYPE) --enable-maintainer-mode
else
        confflags += --build=$(DEB_BUILD_GNU_TYPE) --host=$(DEB_HOST_GNU_TYPE)
endif

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
    NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
    USE_JOBS = -j$(NUMJOBS)
endif

DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/buildflags.mk

# https://sourceware.org/pipermail/elfutils-devel/2020q2/002733.html
ifneq (,$(findstring -flto, $(CFLAGS)))
  CFLAGS += -flto-partition=none -Wno-error=stack-usage=
  CXXFLAGS += -flto-partition=none
  LDFLAGS += -Wno-error=stack-usage=
endif
CFLAGS := $(patsubst -O%,-O3, $(CFLAGS))
CXXFLAGS := $(patsubst -O%,-O3, $(CXXFLAGS))

# Whether we have a debuginfod service available in the distro.
DEBUGINFOD_SERVICE_AVAILABLE = FALSE

# debuginfod configuration flags.
ifneq (,$(filter pkg.elfutils.nodebuginfod,$(DEB_BUILD_PROFILES)))
  conf_debuginfod = \
	--disable-libdebuginfod \
	--disable-debuginfod
else
  # A space-separated list of distributions that have a debuginfod
  # service available.
  DEBUGINFOD_SUPPORTED_DISTROS = Debian

  conf_debuginfod = \
	--enable-libdebuginfod \
	--enable-debuginfod

  ifneq (,$(filter $(DISTRO),$(DEBUGINFOD_SUPPORTED_DISTROS)))
    DEBUGINFOD_SERVICE_AVAILABLE = TRUE

    conf_debuginfod += \
	--enable-debuginfod-urls="https://debuginfod.debian.net"
  endif
endif


stamps/configure:
	dh_testdir
	dh_autoreconf
	@mkdir -p stamps
ifneq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
	./configure --enable-maintainer-mode \
		--enable-libdebuginfod=dummy \
		--disable-debuginfod
	$(MAKE) $(USE_JOBS)
	$(MAKE) clean
endif
	CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CPPFLAGS="$(CPPFLAGS)" LDFLAGS="$(LDFLAGS)" \
		./configure $(confflags) --prefix=/usr \
		--libdir=/usr/lib/$(DEB_HOST_MULTIARCH) \
		--program-prefix=eu- --disable-silent-rules \
		$(conf_debuginfod)
	touch $@

build: stamps/build
stamps/build: stamps/configure
	dh_testdir

	$(MAKE) $(USE_JOBS)

ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	# Check that those files exist.
	-ls -l /proc/$$$$/maps
	-ls -l /proc/$$$$/auxv
	-ls -l /proc/$$$$/
	-LC_CTYPE=C $(MAKE) check $(USE_JOBS) || { cat tests/test-suite.log; exit 1; }
	cat tests/test-suite.log
endif

	touch $@

clean:
	dh_testdir
	dh_testroot
	rm -rf stamps
	[ ! -f Makefile ] || $(MAKE) distclean
	dh_autoreconf_clean
	dh_clean

install: build
	dh_testdir
	dh_testroot
	dh_prep
	dh_installdirs

	# Add here commands to install the package into debian/tmp
	$(MAKE) install DESTDIR=$(CURDIR)/debian/tmp
	# We do not provide a libebl anymore, use libdw instead.
	rm -f debian/tmp/usr/include/elfutils/libebl.h

	# Don't install that yet
	rm -f debian/tmp/usr/etc/debuginfod/elfutils.urls

	dh_install --sourcedir=debian/tmp
	rm -f debian/elfutils/usr/bin/debuginfod*
	dh_missing --fail-missing --sourcedir=debian/tmp

# Build architecture-independent files here.
build-indep: build
binary-indep: build-indep install
	dh_testdir
	dh_testroot
	dh_installchangelogs -i ChangeLog
	dh_installdocs -i

	dh_compress -i
	dh_fixperms -i
	dh_installdebconf -i
	dh_installdeb -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i

# We have nothing to do.

# Build architecture-dependent files here.
build-arch: build
binary-arch: build-arch install
	dh_testdir
	dh_testroot
	dh_installchangelogs -a ChangeLog
	dh_installdocs -a ChangeLog

	: # FIXME: package those ...
#	find debian/tmp -name '*debuginfod*' | xargs -r rm -f
#	rm -f debian/tmp/usr/share/man/man1/eu-elfclassify.1
#	rm -f debian/tmp/usr/share/man/man1/eu-readelf.1
#	rm -f debian/tmp/usr/share/man/man3/elf_*.3

	dh_dwz -a
	dh_strip -a
	dh_strip_nondeterminism -a
	dh_compress -a
	dh_fixperms -a
	dpkg-gensymbols -Pdebian/libdw1/ -plibdw1 -c4
	dpkg-gensymbols -Pdebian/libasm1/ -plibasm1 -c4
	dpkg-gensymbols -Pdebian/libelf1/ -plibelf1 -c4
	dh_makeshlibs -plibelf1 -V "libelf1 (>= 0.132)"
	dh_makeshlibs -plibasm1 -V "libasm1 (>= 0.132)"
	dh_makeshlibs -plibdw1 -V "libdw1 (>= 0.138)"
	dh_makeshlibs -plibdebuginfod1
	dh_installdebconf -a
	dh_installdeb -a
	dh_shlibdeps -a
	dh_gencontrol -a
	dh_md5sums -a
	dh_builddeb -a

binary: binary-indep binary-arch

maint-unpatch:
	bash debian/unpatch.sh debian/patches

.PHONY: build clean binary-indep binary-arch binary install maint-unpatch