# Makefile for the different targets used to generate full packages of a kernel
  # It uses the generic clean infrastructure of kbuild
  
  # Ignore the following files/directories during tar operation
  TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS
  
  
  # RPM target
  # ---------------------------------------------------------------------------
  # The rpm target generates two rpm files:
  # /usr/src/packages/SRPMS/kernel-2.6.7rc2-1.src.rpm
  # /usr/src/packages/RPMS/i386/kernel-2.6.7rc2-1.<arch>.rpm
  # The src.rpm files includes all source for the kernel being built
  # The <arch>.rpm includes kernel configuration, modules etc.
  #
  # Process to create the rpm files
  # a) clean the kernel
  # b) Generate .spec file
  # c) Build a tar ball, using symlink to make kernel version
  #    first entry in the path
  # d) and pack the result to a tar.gz file
  # e) generate the rpm files, based on kernel.spec
  # - Use /. to avoid tar packing just the symlink
  
  # Do we have rpmbuild, otherwise fall back to the older rpm
  RPM := $(shell if [ -x "/usr/bin/rpmbuild" ]; then echo rpmbuild; \
  	           else echo rpm; fi)
  
  # Remove hyphens since they have special meaning in RPM filenames
  KERNELPATH := kernel-$(subst -,,$(KERNELRELEASE))
  MKSPEC     := $(srctree)/scripts/package/mkspec
  PREV       := set -e; cd ..;
  
  # rpm-pkg

  # ---------------------------------------------------------------------------

  $(objtree)/kernel.spec: $(MKSPEC) $(srctree)/Makefile
  	$(CONFIG_SHELL) $(MKSPEC) > $@

  rpm-pkg rpm: $(objtree)/kernel.spec FORCE

  	$(MAKE) clean
  	$(PREV) ln -sf $(srctree) $(KERNELPATH)
  	$(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
  	$(PREV) rm $(KERNELPATH)
  
  	set -e; \
  	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
  	set -e; \
  	mv -f $(objtree)/.tmp_version $(objtree)/.version
  
  	$(RPM) --target $(UTS_MACHINE) -ta ../$(KERNELPATH).tar.gz
  	rm ../$(KERNELPATH).tar.gz
  
  clean-files := $(objtree)/kernel.spec
  
  # binrpm-pkg

  # ---------------------------------------------------------------------------

  $(objtree)/binkernel.spec: $(MKSPEC) $(srctree)/Makefile
  	$(CONFIG_SHELL) $(MKSPEC) prebuilt > $@

  binrpm-pkg: $(objtree)/binkernel.spec FORCE

  	$(MAKE) KBUILD_SRC=

  	set -e; \
  	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
  	set -e; \
  	mv -f $(objtree)/.tmp_version $(objtree)/.version
  
  	$(RPM) --define "_builddir $(srctree)" --target $(UTS_MACHINE) -bb $<
  
  clean-files += $(objtree)/binkernel.spec
  
  # Deb target
  # ---------------------------------------------------------------------------

  deb-pkg: FORCE

  	$(MAKE) KBUILD_SRC=

  	$(CONFIG_SHELL) $(srctree)/scripts/package/builddeb
  
  clean-dirs += $(objtree)/debian/

  # tarball targets
  # ---------------------------------------------------------------------------

  tar%pkg: FORCE

  	$(MAKE) KBUILD_SRC=

  	$(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@
  
  clean-dirs += $(objtree)/tar-install/

  # Help text displayed when executing 'make help'
  # ---------------------------------------------------------------------------

  help: FORCE

  	@echo '  rpm-pkg         - Build the kernel as an RPM package'

  	@echo '  binrpm-pkg      - Build an rpm package containing the compiled kernel'

  	@echo '                    and modules'

  	@echo '  deb-pkg         - Build the kernel as an deb package'
  	@echo '  tar-pkg         - Build the kernel as an uncompressed tarball'
  	@echo '  targz-pkg       - Build the kernel as a gzip compressed tarball'
  	@echo '  tarbz2-pkg      - Build the kernel as a bzip2 compressed tarball'