Don't advertise (or allow) headers_{install,check} where inappropriate.

PHONY += headers_install

headers_install: include/linux/version.h

	@if [ ! -r include/asm-$(ARCH)/Kbuild ]; then \

	  echo '*** Error: Headers not exportable for this architecture ($(ARCH))'; \

	  exit 1 ; fi

	$(Q)unifdef -Ux /dev/null

	$(Q)rm -rf $(INSTALL_HDR_PATH)/include

	$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.headersinst obj=include

	@echo  '  cscope	  - Generate cscope index'

	@echo  '  kernelrelease	  - Output the release version string'

	@echo  '  kernelversion	  - Output the version stored in Makefile'

	@echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'

	@if [ -r include/asm-$(ARCH)/Kbuild ]; then \

	 echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

	 fi

	@echo  '                    (default: $(INSTALL_HDR_PATH))'

	@echo  ''

	@echo  'Static analysers'

	@echo  '  checkstack      - Generate a list of stack hogs'

	@echo  '  namespacecheck  - Name space analysis on compiled kernel'

	@echo  '  headers_check   - Sanity check on exported headers'

	@if [ -r include/asm-$(ARCH)/Kbuild ]; then \

	 echo  '  headers_check   - Sanity check on exported headers'; \

	 fi

	@echo  ''

	@echo  'Kernel packaging:'

	@$(MAKE) $(build)=$(package-dir) help