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#!/usr/bin/make -f
# debian/rules for the Debian mesa package
# Copyright © 2006 Thierry Reding <thierry@gilfi.de>

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

include /usr/share/dpkg/pkg-info.mk

DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
DEB_HOST_ARCH      ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_HOST_ARCH_OS   ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
DEB_HOST_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)

ifeq (,$(filter $(DEB_HOST_ARCH), armhf sh3 sh4))
buildflags = \
	$(shell DEB_CFLAGS_MAINT_APPEND=-Wall DEB_CXXFLAGS_MAINT_APPEND=-Wall dpkg-buildflags --export=configure)
else
  ifneq (,$(filter $(DEB_HOST_ARCH), armhf))
  # Workaround for a variant of LP: #725126
  buildflags = \
	$(shell DEB_CFLAGS_MAINT_APPEND="-Wall -fno-optimize-sibling-calls" DEB_CXXFLAGS_MAINT_APPEND="-Wall -fno-optimize-sibling-calls" dpkg-buildflags --export=configure)
  else
  # Workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83143
  buildflags = \
	$(shell DEB_CFLAGS_MAINT_APPEND="-Wall -O1" DEB_CXXFLAGS_MAINT_APPEND="-Wall -O1" dpkg-buildflags --export=configure)
  endif
endif

DRI_DRIVERS =
GALLIUM_DRIVERS =
VULKAN_DRIVERS =

confflags_DRI3 = -Ddri3=false

# hurd doesn't do direct rendering
ifeq ($(DEB_HOST_ARCH_OS), hurd)
	EGL_PLATFORMS = x11,

	confflags_DIRECT_RENDERING = -Dglx-direct=false
	confflags_GBM = -Dgbm=false
	confflags_OSMESA = -Dosmesa=classic
	DRI_DRIVERS = swrast,
	with_libva = 
else
	EGL_PLATFORMS = x11,surfaceless,

  ifeq ($(DEB_HOST_ARCH_OS), linux)
	confflags_DRI3 = -Ddri3=true
	DRI_DRIVERS += nouveau,
	# Gallium drivers which require kernel support, not yet ported to non-Linux
	GALLIUM_DRIVERS += nouveau, virgl,

	# Freedreno requires arm in addition
	ifneq (,$(filter arm arm64,$(DEB_HOST_ARCH_CPU)))
		GALLIUM_DRIVERS += freedreno,
	endif

	# etnaviv, kmsro, tegra, vc4 and v3d kernel support are only available on armhf and arm64
	ifneq (,$(filter $(DEB_HOST_ARCH), armhf arm64))
		GALLIUM_DRIVERS += etnaviv, kmsro, lima, panfrost, tegra, vc4, v3d,
	endif

	ifneq (,$(filter $(DEB_HOST_ARCH), amd64 i386 x32))
		GALLIUM_DRIVERS += svga,
		# svga needs xa state tracker
		confflags_GALLIUM += -Dgallium-xa=true
		VULKAN_DRIVERS += intel,
	endif

	# Non-Linux ports also lack *_CLOEXEC and epoll, so wayland isn't ready yet:
	EGL_PLATFORMS += wayland,

  endif

	EGL_PLATFORMS += drm,

  # Build intel drivers on archs where libdrm-intel is installed
  ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386 kfreebsd-amd64 kfreebsd-i386 x32))
	DRI_DRIVERS += i915, i965,
	GALLIUM_DRIVERS += iris,
  endif

	DRI_DRIVERS += r200, r100,
	GALLIUM_DRIVERS += r600, r300,

  # LLVM is required for building r300g, radeonsi and llvmpipe drivers.
  # It's also required for building OpenCL support.
  ifneq (,$(filter $(DEB_HOST_ARCH), amd64 arm64 armel armhf i386 kfreebsd-amd64 kfreebsd-i386 mips mips64el mipsel powerpc ppc64 ppc64el s390x sparc64))
	GALLIUM_DRIVERS += radeonsi, swrast,
	confflags_GALLIUM += -Dllvm=true
	confflags_GALLIUM += -Dgallium-opencl=icd
	confflags_OSMESA = -Dosmesa=gallium

	# nine makes sense only on archs that build wine
	ifneq (,$(filter $(DEB_HOST_ARCH), amd64 arm64 armel armhf i386 kfreebsd-i386 powerpc))
		confflags_GALLIUM += -Dgallium-nine=true
	endif
  else
	DRI_DRIVERS += swrast,
	confflags_GALLIUM += -Dllvm=false
	confflags_OSMESA = -Dosmesa=classic
  endif

  # radv needs LLVM and the Vulkan loader, so only build on the subset of
  # arches where we have LLVM enabled and where the Vulkan loader is built.
  ifneq (,$(filter $(DEB_HOST_ARCH), amd64 arm64 armel armhf i386 mips mips64el mipsel powerpc ppc64 ppc64el s390x sparc64))
	VULKAN_DRIVERS += amd,
  endif

	confflags_DIRECT_RENDERING = -Dglx-direct=true
	confflags_GBM = -Dgbm=true
	confflags_GALLIUM += -Dgallium-extra-hud=true
	confflags_GALLIUM += -Dgallium-vdpau=true
	confflags_GALLIUM += -Dlmsensors=true

  ifeq (,$(filter pkg.mesa.nolibva,$(DEB_BUILD_PROFILES)))
	confflags_GALLIUM += -Dgallium-va=true
	with_libva = ,libva
  endif
endif

# Disable assembly usage on x32 otherwise Mesa defaults to x86_64 assembly
# which doesn't work on x32 (see #758094)
ifneq (,$(filter $(DEB_HOST_ARCH), x32))
	confflags += -Dasm=false
endif

confflags_EGL = -Dplatforms="$(EGL_PLATFORMS)"
confflags_GLES = -Dgles1=false -Dgles2=true
confflags_GALLIUM += -Dgallium-drivers="$(GALLIUM_DRIVERS)"

confflags += \
	-Ddri-drivers="$(DRI_DRIVERS)" \
	-Ddri-drivers-path=/usr/lib/$(DEB_HOST_MULTIARCH)/dri \
	-Ddri-search-path='/usr/lib/$(DEB_HOST_MULTIARCH)/dri:\$$$${ORIGIN}/dri:/usr/lib/dri' \
	-Dvulkan-drivers="$(VULKAN_DRIVERS)" \
	-Dglvnd=true \
	-Dshared-glapi=true \
	-Dgallium-xvmc=false \
	-Dgallium-omx=disabled \
	-Db_ndebug=true \
	$(confflags_DIRECT_RENDERING) \
	$(confflags_GBM) \
	$(confflags_DRI3) \
	$(confflags_EGL) \
	$(confflags_GALLIUM) \
	$(confflags_GLES) \
	$(confflags_OSMESA)

override_dh_clean:
	rm -rf .pc
	rm -rf build
	rm -rf configure bin/config.guess bin/config.sub config.h.in
	rm -rf $$(find -name Makefile.in)
	rm -rf bin/install-sh bin/ltmain.sh
	for file in debian/*.in; do rm -f $${file%%.in}; done
	rm -rf src/amd/vulkan/*.pyc src/amd/vulkan/__pycache__/
	rm -rf src/compiler/nir/*.pyc src/compiler/nir/__pycache__/
	rm -rf src/egl/generate/*.pyc src/egl/generate/__pycache__/
	rm -rf src/gallium/auxiliary/util/*.pyc src/gallium/auxiliary/util/__pycache__/
	rm -rf src/intel/vulkan/*.pyc src/intel/vulkan/__pycache__/
	rm -rf src/mapi/glapi/gen/*.pyc src/mapi/glapi/gen/__pycache__/ src/mapi/new/__pycache__/
	rm -rf src/mesa/main/*.pyc src/mesa/main/__pycache__/
	dh_clean

override_dh_auto_configure:
	$(buildflags) dh_auto_configure -- \
		$(confflags)

override_dh_auto_install:
	dh_auto_install
	for file in debian/*.in; \
	do \
		sed -e"s,\$${DEB_HOST_MULTIARCH},$(DEB_HOST_MULTIARCH),g" \
			$${file} > $${file%%.in}; \
	done

override_dh_auto_test:

allpkg = $(shell dh_listpackages -a)

override_dh_installchangelogs:
	dh_installchangelogs -a
	dh_installchangelogs -pmesa-common-dev

override_dh_install:
	# purge .la files
	find debian/tmp/ -name '*.la' -exec rm '{}' ';'

	# Get rid of some files which aren't installed. Do not
	# use -f to ensure we notice disappearing files:
	rm debian/tmp/usr/lib/*/libglapi.so
	rm debian/tmp/usr/lib/*/libEGL_mesa.so
	rm debian/tmp/usr/lib/*/libGLX_mesa.so

	# Copy the hardlinked *_dri.so correctly.
	install -m755 -d debian/libgl1-mesa-dri/usr/lib/${DEB_HOST_MULTIARCH}/dri/
	mv debian/tmp/usr/lib/${DEB_HOST_MULTIARCH}/dri/*_dri.so \
	   debian/libgl1-mesa-dri/usr/lib/${DEB_HOST_MULTIARCH}/dri/

  # Remove vulkan headers only where they get installed in tmp
  # We ship those headers via src:vulkan / libvulkan-dev
  ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386 x32))
	rm debian/tmp/usr/include/vulkan/vulkan_intel.h
	rmdir debian/tmp/usr/include/vulkan
  endif

  ifneq ($(DEB_HOST_ARCH_OS), hurd)
	# Copy the hardlinked vdpau drivers correctly.
	install -m755 -d debian/mesa-vdpau-drivers/usr/lib/${DEB_HOST_MULTIARCH}/vdpau/
	mv debian/tmp/usr/lib/${DEB_HOST_MULTIARCH}/vdpau/libvdpau*.so* \
	   debian/mesa-vdpau-drivers/usr/lib/${DEB_HOST_MULTIARCH}/vdpau/

    ifeq (,$(filter pkg.mesa.nolibva,$(DEB_BUILD_PROFILES)))
	# Copy the hardlinked va drivers correctly.
	install -m755 -d debian/mesa-va-drivers/usr/lib/${DEB_HOST_MULTIARCH}/dri/
	mv debian/tmp/usr/lib/${DEB_HOST_MULTIARCH}/dri/*_drv_video.so \
	   debian/mesa-va-drivers/usr/lib/${DEB_HOST_MULTIARCH}/dri/
    endif
  endif

	dh_install -a --fail-missing

	# Install bug control and script:
	set -e; for p in $(allpkg); do \
		install -d debian/$$p/usr/share/bug/$$p && \
		install -m 644 debian/local/control debian/$$p/usr/share/bug/$$p && \
		install -m 755 debian/local/script  debian/$$p/usr/share/bug/$$p; \
	done

override_dh_makeshlibs:
	dh_makeshlibs -a -- -c4

%:
	dh $@ --with quilt$(with_libva) \
		--builddirectory=build/ \
		--buildsystem=meson

# For maintainer use only, generate a tarball:
gentarball:
	git archive --format=tar upstream-experimental --prefix=$(DEB_SOURCE)-$(DEB_VERSION_UPSTREAM)/ \
		| gzip -9 > ../$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM).orig.tar.gz