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

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

# Enable hardening build flags
export DEB_BUILD_MAINT_OPTIONS=hardening=+all

NJOBS := -j1
ifneq (,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
NJOBS := -j$(subst parallel=,,$(filter parallel=%,$(subst $(COMMA), ,$(DEB_BUILD_OPTIONS))))
endif

DEB_BUILD_ARCH ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH)

# Disable parallel builds for problematic architectures
NO_PARALLEL_ARCHS = arm64 armel armhf alpha hurd-i386 kfreebsd-i386 kfreebsd-amd64

ifeq ($(shell dpkg-vendor --derives-from Ubuntu && echo yes),yes)
	# From mapnik (3.0.8+ds-1ubuntu1):
	# The amd64 buildds are castrated to 4G RAM and 4G swap,
	# the ppc64el buildds to 12G RAM and 4G swap.
	NO_PARALLEL_ARCHS += amd64 ppc64el
endif

ifneq (,$(filter $(DEB_BUILD_ARCH),$(NO_PARALLEL_ARCHS)))
	NJOBS = -j1
endif

# scons flags
SCONS = python3 $(CURDIR)/scons/scons.py
SCONS_FLAGS := $(NJOBS)
# -O2
SCONS_FLAGS += OPTIMIZATION=2
SCONS_FLAGS += FULL_LIB_PATH=False
SCONS_FLAGS += INPUT_PLUGINS=csv,gdal,geojson,ogr,pgraster,postgis,raster,shape,sqlite,topojson
SCONS_FLAGS += PROJ_INCLUDES=/usr/include PROJ_LIBS=/usr/lib
SCONS_FLAGS += SYSTEM_FONTS=/usr/share/fonts
SCONS_FLAGS += XMLPARSER=libxml2
SCONS_FLAGS += DEMO=False
SCONS_FLAGS += CPP_TESTS=False
SCONS_FLAGS += PREFIX=/usr LIB_DIR_NAME=/mapnik/3.1
SCONS_FLAGS += CUSTOM_CXXFLAGS="$(shell dpkg-buildflags --get CXXFLAGS) $(shell dpkg-buildflags --get CPPFLAGS) -g0"
SCONS_FLAGS += CUSTOM_CFLAGS="$(shell dpkg-buildflags --get CFLAGS) $(shell dpkg-buildflags --get CPPFLAGS) -g0"
SCONS_FLAGS += CUSTOM_LDFLAGS="$(shell dpkg-buildflags --get LDFLAGS) -g0"

%:
	dh $@

override_dh_auto_clean:
	rm -rf build-python
	rm -rf debian/stamps
	dh_clean

override_dh_auto_configure: debian/stamps/configure-python
debian/stamps/configure-python:
	-mkdir build-python
	-mkdir debian/stamps
	cp -r demo deps fonts include plugins src test utils SConstruct build-python
	touch $@
	$(SCONS) -C build-python configure \
		$(SCONS_FLAGS) \
		CCFLAGS="$(CFLAGS)" \
		DESTDIR=$(CURDIR)/debian/tmp

override_dh_auto_build:	debian/stamps/build-python
debian/stamps/build-python:
	$(SCONS) $(NJOBS) -C build-python

override_dh_auto_test: debian/stamps/test-python
debian/stamps/test-python:
	# nothing yet

override_dh_auto_install: debian/stamps/install-python
debian/stamps/install-python:
	$(SCONS) $(NJOBS) -C build-python install

override_dh_strip:
	dh_strip --no-automatic-dbgsym

override_dh_prep:
	dh_prep -Xdebian/tmp