#!/usr/bin/make -f
include /usr/share/dpkg/pkg-info.mk
export DH_VERBOSE=1

export DEB_BUILD_MAINT_OPTIONS=hardening=+all,-format

target=riscv64-unknown-elf
package=gcc-$(target)

build_flags=$(shell dpkg-buildflags --export=configure)

build_dir=build

target_bin=/usr/lib/$(target)/bin/

target_tools=\
	AR_FOR_TARGET=$(target_bin)ar \
	AS_FOR_TARGET=$(target_bin)as \
	NM_FOR_TARGET=$(target_bin)nm \
	LD_FOR_TARGET=$(target_bin)ld \
	OBJDUMP_FOR_TARGET=$(target_bin)objdump \
	RANLIB_FOR_TARGET=$(target_bin)ranlib \
	READELF_FOR_TARGET=$(target_bin)readelf \
	STRIP_FOR_TARGET=$(target_bin)strip

configure_flags = \
	--target=riscv64-unknown-elf \
	--prefix=/usr \
	--infodir=/usr/share/doc/$(package)/info \
	--mandir=/usr/share/man \
	--htmldir=/usr/share/doc/$(package)/html \
	--pdfdir=/usr/share/doc/$(package)/pdf \
	--bindir=/usr/bin \
	--libexecdir=/usr/lib \
	--libdir=/usr/lib \
	--with-pkgversion='$(DEBIAN_VERSION_UPSTREAM)' \
	--disable-shared \
	--disable-threads \
	--enable-languages=c,c++ \
	--enable-tls \
	--with-newlib \
	--with-native-system-header-dir=/include \
	--disable-libmudflap \
	--disable-libssp \
	--disable-libquadmath \
	--disable-libgomp \
	--disable-nls \
	--with-system-zlib \
	--enable-checking=yes \
	--enable-multilib \
	--with-abi=lp64d \
	--disable-libstdcxx-pch \
	--disable-libstdcxx \
	--disable-fixinc \
	--with-arch=rv64imafdc \
	--with-gnu-as \
	--with-gnu-ld \
	--with-as=$(target_bin)as \
	--with-ld=$(target_bin)ld \
	$(target_tools) \
	$(build_flags) \
	CFLAGS_FOR_TARGET='-Os -mcmodel=medany' CXXFLAGS_FOR_TARGET='-Os -mcmodel=medany'

make_flags=\
	MAKE="make STMP_FIXINC= -j4" \
	STMP_FIXINC= \
	-j4

DH_FLAGS=-B$(build_dir) --parallel

%:
	dh $@ $(DH_FLAGS) --without-autoreconf

override_dh_auto_configure:
	mkdir -p $(build_dir)
	dh_auto_configure $(DH_FLAGS) -- $(configure_flags)

override_dh_auto_test:
	@echo "no testing, that's way too painful"

override_dh_auto_install:
	dh_auto_install $(DH_FLAGS) --destdir=debian/tmp -- $(make_flags)

override_dh_autoreconf:
	echo no autoreconf

override_dh_auto_build:
	dh_auto_build $(DH_FLAGS) -- $(make_flags)

override_dh_strip:
	dh_strip -X.a -X.o

override_dh_makeshlibs:
	dh_makeshlibs --no-scripts