#!/usr/bin/make -f

export DEB_BUILD_MAINT_OPTIONS = hardening=+all
export DEB_CFLAGS_MAINT_APPEND = -Wall
export DEB_CXXFLAGS_MAINT_APPEND = -Wall

include /usr/share/dpkg/architecture.mk

configure_flags += \
  --prefix=/usr \
  --enable-pic \
  --enable-shared \
  --disable-install-bins \
  --disable-install-srcs \
  --size-limit=16384x16384 \
  --enable-postproc \
  --enable-multi-res-encoding \
  --enable-temporal-denoising \
  --enable-vp9-temporal-denoising \
  --enable-vp9-postproc \
  --enable-vp9-highbitdepth

ifeq ($(DEB_HOST_ARCH_CPU),arm)
configure_flags_neon := $(configure_flags) --target=armv7-linux-gcc
BUILD_NEON=Yes
endif

ifeq ($(DEB_HOST_ARCH), arm64)
configure_flags += --target=arm64-linux-gcc
else
ifeq ($(DEB_HOST_ARCH), armel)
configure_flags += --target=generic-gnu --enable-small
else
ifeq ($(DEB_HOST_ARCH), armhf)
# now armhf is ARMv7, but ARMv7 in vpx means NEON, which is not mandatory on armhf
# thus we use generic-gnu
configure_flags += --target=generic-gnu --enable-small
else
ifeq ($(DEB_HOST_ARCH), amd64)
configure_flags += --target=x86_64-linux-gcc
else
ifeq ($(DEB_HOST_ARCH), i386)
configure_flags += --target=x86-linux-gcc
else
ifeq ($(DEB_HOST_ARCH), hurd-i386)
configure_flags += --target=x86-linux-gcc
else
configure_flags += --target=generic-gnu
endif
endif
endif
endif
endif
endif

ifneq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
CROSS=$(DEB_HOST_GNU_TYPE)-
export CROSS
endif

builddir := $(CURDIR)/builddir

%:
	dh $@

execute_after_dh_auto_clean:
	rm -rf $(builddir) $(builddir)-neon

override_dh_auto_configure:
	mkdir -p $(builddir)
	cd $(builddir); \
	CFLAGS="${CPPFLAGS} ${CFLAGS}" ${CURDIR}/configure $(configure_flags)
ifeq ($(BUILD_NEON), Yes)
	mkdir -p $(builddir)-neon
	cd $(builddir)-neon; \
	CFLAGS="${CPPFLAGS} ${CFLAGS}" ${CURDIR}/configure $(configure_flags_neon)
endif

override_dh_auto_build:
	dh_auto_build --builddirectory=$(builddir) -- verbose=yes dist
ifeq ($(BUILD_NEON), Yes)
	dh_auto_build --builddirectory=$(builddir)-neon -- verbose=yes dist
endif
	# don't use stripped library...
	cp -v $(builddir)/libvpx_g.a \
		$(builddir)/vpx-vp8-*/lib/libvpx.a