#!/usr/bin/make -f
# -*- makefile -*-

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

# clasp requires c++11 threads with 64bit __atomic_exchange, we need to
# link with libatomic on armel, powerpc, powerpcspe, m68k, mips, mipsel, and
# sh4, see also
# https://gcc.gnu.org/wiki/Atomic
# https://gcc.gnu.org/wiki/Atomic/GCCMM/LIbrary
arch = $(shell dpkg-architecture -qDEB_BUILD_ARCH | egrep -x "(armel|powerpc|powerpcspe|m68k|mips|mipsel|sh4)")

# use custom hardening config flags for compiling clasp
CONFIG=hardening
CONFIGPARMS = -DLIB_POTASSCO_BUILD_APP=OFF -DCLASP_BUILD_TESTS=ON -DLIB_POTASSCO_BUILD_TESTS=ON -DCLASP_BUILD_EXAMPLES=ON
TOPBUILDDIR = build/$(CONFIG)_mt

#
# export CXXFLAGS and LDFLAGS for configure.sh
#
# add -O3 and NDEBUG and enable all hardening flags
# link with libatomic on architectures without built-in atomic
#
DEB_CXXFLAGS_MAINT_APPEND = -O3 -DNDEBUG
DEB_LDFLAGS_MAINT_APPEND =
ifeq ($(if $(arch),atomic), atomic)
	DEB_LDFLAGS_MAINT_APPEND += -latomic
endif

export DEB_BUILD_MAINT_OPTIONS = hardening=+all

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

# force g++-8
export CXX = g++-8
export CC = gcc-8
# inject CPPFLAGS to CXXFLAGS
CXXFLAGS += $(CPPFLAGS)

%:
	dh $@

# configure with cmake
override_dh_auto_configure:
	dh_auto_configure --builddirectory=$(TOPBUILDDIR) -- $(CONFIGPARMS)

# build with cmake in $(TOPBUILDDIR)
override_dh_auto_build:
	dh_auto_build --builddirectory=$(TOPBUILDDIR)

# install clasp binary built in $(TOPBUILDDIR)
override_dh_auto_install:
	dh_auto_install --builddirectory=$(TOPBUILDDIR)

override_dh_auto_clean:
	dh_auto_clean --builddirectory=$(TOPBUILDDIR)

# run and output test results
override_dh_auto_test:
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	dh_auto_test --builddirectory=$(TOPBUILDDIR) &&\
		{ EXIT_CODE=$$? ; echo "Exit $$EXIT_CODE" ; test -d $(TOPBUILDDIR)/Testing/Temporary && tail -n +1 -v -- $(TOPBUILDDIR)/Testing/Temporary/* ; exit $$EXIT_CODE ; } ||\
		{ EXIT_CODE=$$? ; echo "Exit $$EXIT_CODE" ; test -d $(TOPBUILDDIR)/Testing/Temporary && tail -n +1 -v -- $(TOPBUILDDIR)/Testing/Temporary/* ; exit $$EXIT_CODE ; }
endif

# install CHANGES as changelog
override_dh_installchangelogs:
	dh_installchangelogs CHANGES