mirror of
https://git.busybox.net/buildroot.git
synced 2024-11-27 23:43:34 +08:00
f6fc9abd10
As mentioned in the e-mail accompanying the introduction of the pkg-virtual infrastructure [1], the definition of FOO_VERSION is 'strange'. After the cleanup of single/double dollar signs in inner-generic-package, the special construction in pkg-virtual is no longer needed and can be simplified. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr> [1] http://lists.busybox.net/pipermail/buildroot/2014-April/093670.html Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
72 lines
2.8 KiB
Makefile
72 lines
2.8 KiB
Makefile
################################################################################
|
|
# Virtual package infrastructure
|
|
#
|
|
# This file implements an infrastructure that eases development of
|
|
# package .mk files for virtual packages. It should be used for all
|
|
# virtual packages.
|
|
#
|
|
# See the Buildroot documentation for details on the usage of this
|
|
# infrastructure
|
|
#
|
|
# In terms of implementation, this virtual infrastructure requires
|
|
# the .mk file to only call the 'virtual-package' macro.
|
|
#
|
|
################################################################################
|
|
|
|
|
|
################################################################################
|
|
# inner-virtual-package -- defines the dependency rules of the virtual
|
|
# package against its provider.
|
|
#
|
|
# argument 1 is the lowercase package name
|
|
# argument 2 is the uppercase package name, including an HOST_ prefix
|
|
# for host packages
|
|
# argument 3 is the uppercase package name, without the HOST_ prefix
|
|
# for host packages
|
|
# argument 4 is the type (target or host)
|
|
################################################################################
|
|
|
|
# Note: putting this comment here rather than in the define block, otherwise
|
|
# make would try to expand the $(error ...) in the comment, which is not
|
|
# really what we want.
|
|
# We need to use second-expansion for the $(error ...) call, below,
|
|
# so it is not evaluated now, but as part of the generated make code.
|
|
|
|
define inner-virtual-package
|
|
|
|
# Ensure the virtual package has an implementation defined.
|
|
ifeq ($$(BR2_PACKAGE_HAS_$(2)),y)
|
|
ifeq ($$(call qstrip,$$(BR2_PACKAGE_PROVIDES_$(2))),)
|
|
$$(error No implementation selected for virtual package $(1). Configuration error)
|
|
endif
|
|
endif
|
|
|
|
# A virtual package does not have any source associated
|
|
$(2)_SOURCE =
|
|
|
|
# Fake a version string, so it looks nicer in the build log
|
|
$(2)_VERSION = virtual
|
|
|
|
# This must be repeated from inner-generic-package, otherwise we get an empty
|
|
# _DEPENDENCIES
|
|
ifeq ($(4),host)
|
|
$(2)_DEPENDENCIES ?= $$(filter-out host-toolchain $(1),\
|
|
$$(patsubst host-host-%,host-%,$$(addprefix host-,$$($(3)_DEPENDENCIES))))
|
|
endif
|
|
|
|
# Add dependency against the provider
|
|
$(2)_DEPENDENCIES += $$(call qstrip,$$(BR2_PACKAGE_PROVIDES_$(2)))
|
|
|
|
# Call the generic package infrastructure to generate the necessary
|
|
# make targets
|
|
$(call inner-generic-package,$(1),$(2),$(3),$(4))
|
|
|
|
endef
|
|
|
|
################################################################################
|
|
# virtual-package -- the target generator macro for virtual packages
|
|
################################################################################
|
|
|
|
virtual-package = $(call inner-virtual-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
|
|
host-virtual-package = $(call inner-virtual-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
|