#!/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

CFLAGS = -Wall -g
ifneq (,$(filter noopt,$(DEB_BUILD_OPTIONS)))
	CFLAGS += -O0
else
	CFLAGS += -O2
endif
ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	MAKEFLAGS += -j$(NUMJOBS)
endif

DEB_BUILD_ARCH     ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH)
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_GNU_CPU ?= $(shell dpkg-architecture -qDEB_HOST_GNU_CPU)
DEB_HOST_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)
DEB_BUILD_DIR      ?= $(CURDIR)/obj-$(DEB_BUILD_GNU_TYPE)
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

export DEB_BUILD_ARCH
export DEB_HOST_ARCH_CPU

# choose which configurations to build
include debian/scripts/choose-configs

# build the following configurations by default
CONFIGS = $(SWX11_GLU_CONFIGS) \
	  dri \
	  osmesa \
	  osmesa-static \
	  osmesa16 \
	  osmesa16-static \
	  osmesa32 \
	  osmesa32-static

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

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

confflags-common = \
	--disable-glu \
	--disable-glut \
	--disable-glw \
	CFLAGS="$(CFLAGS)"

DRI_DRIVERS = swrast

# hurd doesn't do direct rendering
ifeq ($(DEB_HOST_ARCH_OS), hurd)
	DIRECT_RENDERING = --disable-driglx-direct
else
	DIRECT_RENDERING = --enable-driglx-direct
	DRI_DRIVERS += mach64 mga r128 r200 r300 radeon s3v savage tdfx trident
endif

ifeq ($(DEB_HOST_GNU_CPU), i486)
	DRI_DRIVERS += i810 i915 i965 sis unichrome
else ifeq ($(DEB_HOST_GNU_CPU), x86_64)
	DRI_DRIVERS += i915 i965 sis unichrome
else ifeq ($(DEB_HOST_ARCH), sparc)
	DRI_DRIVERS += ffb
endif

confflags-dri = \
	--with-driver=dri \
	--with-dri-drivers="$(DRI_DRIVERS)" \
	--with-demos=xdemos \
	--libdir=/usr/lib/glx \
	--with-dri-driverdir=/usr/lib/dri \
	--enable-glx-tls \
	$(DIRECT_RENDERING) \
	$(confflags-common)

confflags-osmesa = \
	--with-driver=osmesa \
	--with-demos= \
	$(confflags-common)

confflags-osmesa-static = \
	--with-driver=osmesa \
	--enable-static \
	--with-demos= \
	$(confflags-common)

confflags-osmesa16 = \
	--with-driver=osmesa \
	--with-osmesa-bits=16 \
	--with-demos= \
	$(confflags-common)

confflags-osmesa16-static = \
	--with-driver=osmesa \
	--with-osmesa-bits=16 \
	--enable-static \
	--with-demos= \
	$(confflags-common)

confflags-osmesa32 = \
	--with-driver=osmesa \
	--with-osmesa-bits=32 \
	--with-demos= \
	$(confflags-common)

confflags-osmesa32-static = \
	--with-driver=osmesa \
	--with-osmesa-bits=32 \
	--enable-static \
	--with-demos= \
	$(confflags-common)

confflags-swx11+glu = \
	--with-driver=xlib \
	--disable-gl-osmesa \
	--with-demos= \
	--disable-glut \
	CFLAGS="$(CFLAGS)"

confflags-swx11+glu-static = \
	--with-driver=xlib \
	--disable-gl-osmesa \
	--enable-static \
	--with-demos= \
	--disable-glut \
	CFLAGS="$(CFLAGS)"

confflags-swx11+glu-i386-i686 = \
	--with-driver=xlib \
	--disable-gl-osmesa \
	--with-demos= \
	--disable-glut \
	--libdir=/usr/lib/i686/cmov \
	CFLAGS="$(CFLAGS) -march=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_STAMPS)

$(STAMP)-build-%: configure
	dh_testdir

	mkdir -p $(DEB_BUILD_DIR)/$*
	find $(CURDIR)/* -maxdepth 0 -not -path '$(DEB_BUILD_DIR)*' | \
		xargs cp -rlf -t $(DEB_BUILD_DIR)/$*
	cd $(DEB_BUILD_DIR)/$* && \
	../../configure --prefix=/usr --mandir=\$${prefix}/share/man \
	             --infodir=\$${prefix}/share/info --sysconfdir=/etc \
	             --localstatedir=/var $(confflags) $(confflags-$*)
	cd $(DEB_BUILD_DIR)/$* && $(MAKE)

	touch $@

install:
	# Add here commands to install the package into debian/tmp
	dh_testdir
	dh_testroot
	dh_clean -k
	dh_installdirs
	$(MAKE) -f debian/rules $(INSTALL_TARGETS)

install-%: $(STAMP)-build-%
	cd $(DEB_BUILD_DIR)/$* && $(MAKE) DESTDIR=$(CURDIR)/debian/tmp install

clean: unpatch
	dh_testdir
	dh_testroot
	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 obj-*
	rm -rf configure config.guess config.sub config.h.in
	rm -rf $$(find -name Makefile.in)
	rm -rf aclocal.m4 missing depcomp install-sh ltmain.sh
	rm -rf $(STAMP_DIR)
	
	dh_clean

# Build architecture-independent files here.
binary-indep: install
	dh_testdir
	dh_testroot
	dh_installchangelogs -i
	dh_installdocs -i
	dh_installexamples -i
	dh_install --sourcedir=debian/tmp --list-missing -i
	dh_installman -i
	dh_link -i
	dh_compress -i
	dh_fixperms -i
	dh_installdeb -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i

# Build architecture-dependent files here.
binary-arch: install
	dh_testdir
	dh_testroot
	dh_installchangelogs -s
	dh_installdocs -s
	dh_installexamples -s
	dh_install -s --sourcedir=debian/tmp --list-missing
	dh_installman -s
	dh_link -s
	dh_strip -plibgl1-mesa-swx11 --dbg-package=libgl1-mesa-swx11-dbg
	dh_strip -plibgl1-mesa-glx --dbg-package=libgl1-mesa-glx-dbg
	dh_strip -plibgl1-mesa-dri --dbg-package=libgl1-mesa-dri-dbg
	dh_strip -s
	dh_compress -s
	dh_fixperms -s
	dh_makeshlibs -s
	dh_installdeb -s
	dh_shlibdeps -s
	dh_gencontrol -s
	dh_md5sums -s
	dh_builddeb -s

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