#!/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

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	MAKEFLAGS += -j$(NUMJOBS)
endif

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_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
DEB_HOST_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)
DEB_BUILD_DIR      ?= $(CURDIR)/build
ifeq ($(DEB_BUILD_GNU_TYPE), $(DEB_HOST_GNU_TYPE))
	confflags += --build=$(DEB_HOST_GNU_TYPE)
else
	confflags += --build=$(DEB_BUILD_GNU_TYPE) --host=$(DEB_HOST_GNU_TYPE)
endif

ifeq (,$(filter $(DEB_HOST_ARCH), armhf))
buildflags = \
	$(shell DEB_CFLAGS_MAINT_APPEND=-Wall DEB_CXXFLAGS_MAINT_APPEND=-Wall dpkg-buildflags --export=configure)
else
# 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)
endif

buildflags-i686 = \
	$(shell DEB_CFLAGS_MAINT_APPEND="-Wall -march=i686" DEB_CXXFLAGS_MAINT_APPEND="-Wall -march=i686" dpkg-buildflags --export=configure)

# keep a list of files we don't install (yet), but since it's a bit
# large, use an external file:
include debian/not-installed

# build the following configurations by default
CONFIGS = swx11 \
	  swx11-static \
	  dri

ifeq ($(DEB_HOST_ARCH_CPU), i386)
	CONFIGS += swx11-i386-i686
endif

STAMP_DIR = debian/stamp
STAMP = $(STAMP_DIR)/$(DEB_BUILD_GNU_TYPE)
BUILD_STAMPS = $(addprefix $(STAMP)-build-, $(CONFIGS))

QUILT_STAMPFN = $(STAMP_DIR)/patch
include /usr/share/quilt/quilt.make

DRI_DRIVERS =
GALLIUM_DRIVERS =
EGL_DISPLAYS = x11

confflags_DRI3 = --disable-dri3
confflags_TLS = --enable-glx-tls

# hurd doesn't do direct rendering
ifeq ($(DEB_HOST_ARCH_OS), hurd)
	confflags_DIRECT_RENDERING = --disable-driglx-direct
	DRI_DRIVERS += swrast
else
  ifeq ($(DEB_HOST_ARCH_OS), linux)
	confflags_DRI3 = --enable-dri3
# Gallium drivers require libdrm-{nouveau,radeon}, only available on Linux
	GALLIUM_DRIVERS += nouveau svga
#
# Although the KMS egl drivers will probably build on kfreebsd & hurd
# only linux actually has KMS drivers implemented at this point.
	EGL_DISPLAYS += drm
# Non-Linux ports also lack *_CLOEXEC and epoll, so wayland isn't ready yet:
	EGL_DISPLAYS += wayland
    ifeq (,$(filter $(DEB_HOST_ARCH), s390 s390x))
	DRI_DRIVERS += nouveau
    endif
  endif

  # 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
  endif

  # Do not build llvmpipe for armhf, it regresses compared to the classic swrast.
  ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386 kfreebsd-amd64 kfreebsd-i386))
	GALLIUM_DRIVERS += swrast
  else
	DRI_DRIVERS += swrast
  endif

  ifeq (,$(filter $(DEB_HOST_ARCH), s390 s390x))
    DRI_DRIVERS += r200 radeon
    GALLIUM_DRIVERS += r600 r300
  endif
  ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386 armhf))
	# opencl needs gallium-pipe-loader which needs udev,
	# so no opencl on kfreebsd.
	# opencl needs LLVM and Clang, so only build it on the subset
	# of arches where we have LLVM enabled.
	confflags_GALLIUM += --enable-opencl --enable-opencl-icd
  endif

  # LLVM is required for r300g, radeonsi and llvmpipe:
  ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386 kfreebsd-amd64 kfreebsd-i386 armhf))
	GALLIUM_DRIVERS += radeonsi
	confflags_GALLIUM += --enable-gallium-llvm
	confflags_GALLIUM += --with-llvm-shared-libs
  endif

	confflags_DIRECT_RENDERING = --enable-driglx-direct
	confflags_OPENVG = --enable-openvg --enable-gallium-egl
	confflags_GALLIUM += --enable-vdpau
endif
confflags_EGL = --with-egl-platforms="$(EGL_DISPLAYS)"
confflags_GLES = --enable-gles1 --enable-gles2
confflags_GALLIUM += --with-gallium-drivers="$(GALLIUM_DRIVERS)"

# Overriding:
ifeq (illumos-amd64,$(DEB_HOST_ARCH))
confflags_OPENVG = --disable-openvg --disable-gallium-egl
confflags_GALLIUM += --with-gallium-drivers=
confflags_TLS = --disable-glx-tls
DRI_DRIVERS = i915 i965 r200 radeon swrast
endif

confflags-dri = \
	--enable-dri \
	--with-dri-drivers="$(DRI_DRIVERS)" \
	--with-dri-driverdir=/usr/lib/$(DEB_HOST_MULTIARCH)/dri \
	--with-dri-searchpath='/usr/lib/$(DEB_HOST_MULTIARCH)/dri:\$$$${ORIGIN}/dri:/usr/lib/dri' \
	--enable-osmesa \
	--enable-shared-glapi \
	--enable-texture-float \
	--enable-xa \
	--disable-xvmc \
	$(confflags_TLS) \
	$(confflags_DIRECT_RENDERING) \
	$(confflags_DRI3) \
	$(confflags_EGL) \
	$(confflags_GALLIUM) \
	$(confflags_GLES) \
	$(confflags_OPENVG) \
	$(buildflags)

confflags-swx11 = \
	--disable-dri \
	--disable-egl \
	--with-gallium-drivers= \
	--enable-xlib-glx \
	--disable-egl \
	--disable-shared-glapi \
	$(buildflags)

confflags-swx11-static = \
	--disable-dri \
	--disable-egl \
	--with-gallium-drivers= \
	--enable-xlib-glx \
	--enable-static \
	--disable-egl \
	--disable-shared-glapi \
	$(buildflags)

confflags-swx11-i386-i686 = \
	--disable-dri \
	--disable-egl \
	--with-gallium-drivers= \
	--enable-xlib-glx \
	--disable-egl \
	--disable-shared-glapi \
	--libdir=/usr/lib/$(DEB_HOST_MULTIARCH)/i686/cmov \
	$(buildflags-i686)

configure: $(QUILT_STAMPFN) configure.ac
	autoreconf -vfi

# list the configurations that will built
configs:
	@echo Building the following configurations: $(CONFIGS)

$(STAMP_DIR)/stamp:
	dh_testdir
	mkdir -p $(STAMP_DIR)
	>$@

$(QUILT_STAMPFN): $(STAMP_DIR)/stamp

build: build-stamp

build-stamp: $(BUILD_STAMPS)
	>$@

$(STAMP)-build-%: configure
	dh_testdir

	mkdir -p $(DEB_BUILD_DIR)/$*

	cd $(DEB_BUILD_DIR)/$* && \
	../../configure --prefix=/usr --mandir=\$${prefix}/share/man \
	             --infodir=\$${prefix}/share/info --sysconfdir=/etc \
	             --libdir=\$${prefix}/lib/$(DEB_HOST_MULTIARCH) \
	             --localstatedir=/var --disable-silent-rules \
				 $(confflags) $(confflags-$*) \
	             ac_cv_path_LLVM_CONFIG=llvm-config-3.4
	cd $(DEB_BUILD_DIR)/$* && $(MAKE)
	>$@

install: build
	# Add here commands to install the package into debian/tmp
	dh_testdir
	dh_testroot
	dh_prep
	dh_installdirs
	set -e; for config in $(filter-out dri, $(CONFIGS)); do \
		$(MAKE) -C $(DEB_BUILD_DIR)/$$config DESTDIR=$(CURDIR)/debian/tmp install; \
	done
	$(MAKE) -C $(DEB_BUILD_DIR)/dri DESTDIR=$(CURDIR)/debian/tmp/dri install
	for file in debian/*.in; \
	do \
		sed -e"s,\$${DEB_HOST_MULTIARCH},$(DEB_HOST_MULTIARCH),g" \
			$${file} > $${file%%.in}; \
	done

clean: unpatch
	dh_testdir
	rm -rf .pc

	rm -f config.cache config.log config.status
	rm -f */config.cache */config.log */config.status
	rm -f conftest* */conftest*
	rm -rf autom4te.cache */autom4te.cache
	rm -rf build
	rm -rf configure bin/config.guess bin/config.sub config.h.in
	rm -rf $$(find -name Makefile.in)
	rm -rf aclocal.m4 bin/missing bin/depcomp install-sh bin/ltmain.sh
	rm -f bin/ar-lib bin/compile bin/ylwrap bin/install-sh
	rm -rf $(STAMP_DIR)
	for file in debian/*.in; do rm -f $${file%%.in}; done
	rm -f src/glsl/builtins/tools/texture_builtins.pyc
	rm -f src/mapi/glapi/gen/*.pyc
	rm -f src/mesa/main/*.pyc
	rm -f src/gallium/auxiliary/util/*.pyc
	rm -f m4/libtool.m4 m4/ltoptions.m4 m4/ltsugar.m4 m4/ltversion.m4 m4/lt~obsolete.m4

	dh_clean

# Build architecture-independent files here.
binary-indep: install

allpkg = $(shell dh_listpackages -s)
dbgpkg = $(filter %-dbg, $(allpkg))
otherpkg = $(filter-out %-dbg, $(allpkg))
havedbgpkg = $(patsubst %-dbg,%,$(dbgpkg))
nodbgpkg = $(filter-out $(havedbgpkg),$(otherpkg))

# Build architecture-dependent files here.
binary-arch: install
	dh_testdir
	dh_testroot
	dh_installchangelogs -s
	dh_installchangelogs -pmesa-common-dev
	dh_installdocs -s
	dh_installexamples -s

	# Also get rid of other files which aren't installed. Do not
	# use -f to ensure we notice disappearing files:
	set -e; for file in $(NOT_INSTALLED); do rm debian/tmp/$$file; done
	# Files only in git, not in tarballs, OK to use rm -f here:
	set -e; for file in $(NOT_INSTALLED_EITHER); do rm -f debian/tmp/$$file; done
	# No need for these .so, they're just convenience libraries:
	rm debian/tmp/dri/usr/lib/${DEB_HOST_MULTIARCH}/libglapi.so
	# purge .la files
	find debian/tmp/ -name '*.la' -exec rm '{}' ';'

	# Copy the hardlinked *_dri.so correctly.
	install -m755 -d debian/libgl1-mesa-dri/usr/lib/${DEB_HOST_MULTIARCH}/dri/
	mv debian/tmp/dri/usr/lib/${DEB_HOST_MULTIARCH}/dri/*_dri.so \
	   debian/libgl1-mesa-dri/usr/lib/${DEB_HOST_MULTIARCH}/dri/
	dh_install -s --fail-missing
	dh_installman -s
	dh_lintian -s
	dh_link -s
	# 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
	set -e; for p in $(havedbgpkg); do \
		dh_strip -p$${p} --dbg-package=$${p}-dbg; \
	done
	# dh_strip -s --remaining-packages doesn't work with resumed
	# builds (see changelog for mesa 7.10-1):
	dh_strip $(foreach p,$(nodbgpkg),-p$(p))
	dh_compress -s
	dh_fixperms -s
	dh_makeshlibs -s -- -c4
	dh_installdeb -s
	dh_shlibdeps -s
	dh_gencontrol -s
	dh_md5sums -s
	dh_builddeb -s -- -Zxz

binary: binary-indep binary-arch
.PHONY: configs build clean binary-indep binary-arch binary install

# For maintainer use only, generate a tarball:
gentarball: SOURCE=mesa
gentarball: UV=$(shell dpkg-parsechangelog|awk '/^Version:/ {print $$2}'|sed 's/-.*$$//')
gentarball:
	git archive --format=tar upstream-experimental --prefix=$(SOURCE)-$(UV)/ | gzip -9 > ../$(SOURCE)_$(UV).orig.tar.gz