GARNAME = linux
mainversion = 3.3
patchversion = .4
preversion =
rtversion =
bfsversion =
distversion = $(mainversion)
GARVERSION = $(mainversion)$(patchversion)$(preversion)$(rtversion)$(bfsversion)
GARREVISION = config$(shell sha1sum $(FILEDIR)/config | awk '{print $$1}')
CATEGORIES = linux
MASTER_SITES = $(MASTER_KERNEL)
MASTER_SUBDIR = linux/kernel/v3.0/$(if $(preversion),testing/)
SIGFILE_SITES = $(PATCHFILE_SITES)
PATCHFILE_SITES = \
	$(addsuffix linux/kernel/projects/rt/older/,$(MASTER_KERNEL)) \
	$(addsuffix linux/kernel/projects/rt/,$(MASTER_KERNEL)) \
	http://ck.kolivas.org/patches/bfs/$(distversion).0/
mainname = linux-$(distversion)$(preversion).tar.bz2
DISTFILES = $(mainname) config
SIGFILES = $(patsubst %.bz2.sign,%.sign,$(mainname).sign $(if $(patchversion),$(patchname).sign)) $(if $(rtversion),$(rtname).sign)
patchname = $(if $(patchversion),patch-$(distversion)$(preversion)$(patchversion).bz2)
rtname = $(if $(rtversion),patch-$(distversion)$(preversion)$(patchversion)$(rtversion).bz2)
bfsname = $(if $(bfsversion),$(distversion)-sched-bfs-$(subst -bfs,,$(bfsversion)).patch)
gspatches =
PATCHFILES = $(patchname) $(rtname) $(bfsname) $(gspatches)
PATCHOPTS = -p1
LIBDEPS = sys/newt python/python
WORKSRC = $(WORKDIR)/linux-$(distversion)$(preversion)

DESCRIPTION = The Linux kernel
HOME_URL = http://www.kernel.org/
# For the patches:
#   http://rt.wiki.kernel.org/index.php/CONFIG_PREEMPT_RT_Patch
#   http://ck.kolivas.org/patches/bfs/

CONFIGURE_SCRIPTS = scmversion config
BUILD_SCRIPTS = \
	$(WORKSRC)/Makefile \
	$(WORKSRC)/tools/perf/Makefile
INSTALL_SCRIPTS = \
	kernel source docs hook-post-install \
	$(WORKSRC)/tools/perf/Makefile-DESTDIR

MAKE_ARGS = \
	prefix=$(prefix) \
	sysconfdir=$(sysconfdir)
BUILD_ARGS = \
	$(MAKE_ARGS_PARALLEL) \
	all

dest = $(packageprefix)/src/linux
moddir = $(packageDESTDIR)/lib/modules/$(GARVERSION)

include ../linux.mk

COLLISIONS += include/.install* include/..install* include/drm
DECONFLICT += libdrm

patch-clearev:
	@sed -i 's,\(EXTRAVERSION =\).*,\1,' $(WORKSRC)/Makefile
	$(MAKECOOKIE)

# Post-3.0, this doesn't include patchversion any more.
post-patch:
	@sed -i 's,\(EXTRAVERSION =\).*,\1 $(preversion)$(rtversion)$(bfsversion),' $(WORKSRC)/Makefile
	$(MAKECOOKIE)

# If this file isn't present, scripts/setlocalversion will try to figure out
# whether it's building the source from several different version control
# systems -- and it'll find the GARstow working copy by walking up the tree.
configure-scmversion:
	@touch $(WORKSRC)/.scmversion
	$(MAKECOOKIE)

configure-config:
	@cp $(FILEDIR)/config $(WORKSRC)/.config
	@yes '' | make -C $(WORKSRC) oldconfig
	$(MAKECOOKIE)

# This rule should be invoked by hand after a version upgrade in order to
# update the config file contained in this port.
config_target ?= oldconfig
config:
	@sed -i \
		-e 's,\t\(for ext in so a\),\techo "-lncurses"; \1,' \
		-e 's,/usr/include,$(prefix)/include,g' \
		$(WORKSRC)/scripts/kconfig/lxdialog/check-lxdialog.sh
	@cp $(FILEDIR)/config $(WORKSRC)/.config
	@make -C $(WORKSRC) $(config_target)
	@cp $(WORKSRC)/.config $(FILEDIR)/config
	@make makesum

install-kernel:
	@install -m755 $(WORKSRC)/arch/i386/boot/bzImage $(packageDESTDIR)$(bootdir)/vmlinuz-$(GARVERSION)
	@make -C $(WORKSRC) \
		headers_install modules_install firmware_install \
		INSTALL_MOD_PATH=$(packageDESTDIR) \
		INSTALL_HDR_PATH=$(packageprefix)
	$(MAKECOOKIE)

install-source:
	@mkdir -p $(dest)
	@rm -rf $(dest)
	@cp -R $(WORKSRC) $(dest)
	@make -C $(dest) clean
	@make -C $(dest) prepare
	@rm -f $(moddir)/build $(moddir)/source
	@ln -sf $(prefix)/src/linux $(moddir)/build
	@ln -sf $(prefix)/src/linux $(moddir)/source
	$(MAKECOOKIE)

install-docs:
	@$(INSTALL_DOCS) $(WORKSRC)/Documentation/*
	$(MAKECOOKIE)