#!/usr/bin/make -f
#
version   = 2.6.11
abiname   = 1
ktver     = 2
kbuildver = 2.6-3
#
# Generally nothing needs to be modified below this line
#
debver = $(version)-$(abiname)
debnum = -$(abiname)
appvan = --append_to_version $(debnum)
bpkg   = kernel-build-$(debver)
kdir   = kernel-source-$(version)
kbpkg  = kernel-kbuild-$(kbuildver)
kpatch = /usr/src/kernel-patches/all/$(version)/apply/debian
DEBIAN_SRCTOP = $(CURDIR)/$(kdir)
DEBIAN_UPSTREAM_VERSION = $(version)
ifeq (,$(DEB_HOST_ARCH))
  DEB_HOST_ARCH  = $(shell dpkg-architecture -qDEB_HOST_ARCH)
  DEB_BUILD_ARCH = $(shell dpkg-architecture -qDEB_BUILD_ARCH)
endif
ifneq ($(DEB_BUILD_ARCH),$(DEB_HOST_ARCH))
  CROSS = $(DEB_HOST_ARCH)-linux-
endif
karch = $(DEB_HOST_ARCH)

controls = $(wildcard arch/*/control.in)
configs = $(notdir $(wildcard arch/$(karch)/config.*))
ifndef flavours
  flavours = $(filter-out common, $(patsubst config.%,%,$(configs)))
endif

-include arch/$(karch)/Makefile.inc

ifndef header_dirs
  header_dirs = $(karch)
endif


unpack: unpack-stamp
unpack-stamp: $(kdir) $(configs) header-install.out
	for i in $(flavours); do                     \
	  cp -al $(kdir) build-$$i;                  \
	  cp config.$$i build-$$i/.config;           \
	  make -C build-$$i ARCH=$(karch) oldconfig; \
	done
#       Have to figure out what to do with that one
#	cp default $(kdir)/.config
	ln -s $$(command -v touch) bin/touch.orig
	touch $@

clean:
	rm -f *-stamp header-install.out config.*
	rm -rf $(kdir) build-* install-* bin/touch.orig
	dh_clean
 
header-install.out: header-install
	sed -e 's/@kbpkg@/$(kbpkg)/g'             \
	    -e 's/@karch@/$(karch)/g'             \
	    -e 's/@header_dirs@/$(header_dirs)/g' \
        header-install > header-install.out
	chmod u+x header-install.out
#
# Generates the kernel config file for a subarch by merging
# the arch-independent config file (arch/config.common),
# arch-specific config file (arch/$(karch)/config.common),
# and subarch specific one (arch/$(karch)/config.subarch).
# It is possible to avoid the inclusion of the arch-indep
# config file by setting include_common_config = no in the
# arch/$(karch)/Makefile.inc. Absense of any of the above
# files is ignored.
#
config.%:
	@echo -n "Generating configuration file $@ ..."
	@arch='arch/$(karch)/config.common';            \
	subarch='arch/$(karch)/$@';                     \
	include='';                                     \
	if [ '$(include_common_config)' != 'no' ]; then \
	  include='arch/config.common';                 \
	fi;                                             \
	if [ -f "$${arch}" ]; then                      \
	  include="$${include} $${arch}";               \
	fi;                                             \
	if [ -f "$${subarch}" ]; then                   \
	  include="$${include} $${subarch}";            \
	fi;                                             \
	cat $${include} > $@ 
	@echo " done."
#
# Prepare debian/control by cat'ing together all the
# control files, substituting variables, removing all
# empty lines and inserting a newline before every
# line starting with 'Package:'
#
debian/control:
	cat debian/control.in $(controls) |     \
	sed -e 's/@karch@/$(karch)/g'           \
	    -e 's/@version@/$(version)/g'       \
	    -e 's/@ktver@/$(ktver)/g'           \
	    -e 's/@abiname@/$(abiname)/g'       \
	    -e 's/@kbpkg@/$(kbpkg)/g' |         \
	sed '/^[[:space:]]*$$/d' |              \
        sed 's/^Package:/\n&/g' > debian/control

$(kdir):
	@echo -n "Unpacking kernel source $(version) ..."
	@tar jxf /usr/src/kernel-source-$(version).tar.bz2
	@cd $(kdir) && $(kpatch) $(version)-$(ktver)
	@mkdir -p $(kdir)/debian
	@cp debian/changelog $(kdir)/debian
	@cp debian/control   $(kdir)/debian
	@cp debian/copyright $(kdir)/debian
	@touch $(kdir)/debian/official
	@install post-install $(kdir)/debian
	@echo " done."