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core: add waf-package infra

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This new waf-package infrastructure simplifies writing waf-based
packages. It can be used by our six current such packages, plus a
later-incoming one by Romain.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Romain Naour <romain.naour@openwide.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Tested-by: Romain Naour <romain.naour@gmail.com>
[Thomas:
 - rename <pkg>_BUNDLED_WAF to <pkg>_NEEDS_EXTERNAL_WAF, which
   involves inverting the meaning of the boolean.
 - always add the host-python dependency
 - add a default value for <pkg>_NEEDS_EXTERNAL_WAF (defaults to NO)
 - remove the unneeded <pkg>_MAKE related definitions.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN 2016-10-30 17:02:13 +01:00 committed by Thomas Petazzoni
parent 879136d4c7
commit 24d23bbce7
2 changed files with 114 additions and 0 deletions
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1
package/Makefile.in
View File

@ -398,3 +398,4 @@ include package/pkg-generic.mk
include package/pkg-kconfig.mk
include package/pkg-rebar.mk
include package/pkg-kernel-module.mk
include package/pkg-waf.mk

113
package/pkg-waf.mk Normal file
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@ -0,0 +1,113 @@
################################################################################
# WAF package infrastructure
#
# This file implements an infrastructure that eases development of package
# .mk files for WAF packages. It should be used for all packages that use
# WAF as their build system.
#
# See the Buildroot documentation for details on the usage of this
# infrastructure
#
# In terms of implementation, this WAF infrastructure requires the .mk file
# to only specify metadata information about the package: name, version,
# download URL, etc.
#
# We still allow the package .mk file to override what the different steps
# are doing, if needed. For example, if <PKG>_BUILD_CMDS is already defined,
# it is used as the list of commands to perform to build the package,
# instead of the default WAF behaviour. The package can also define some
# post operation hooks.
#
################################################################################
################################################################################
# inner-waf-package -- defines how the configuration, compilation and
# installation of a waf package should be done, implements a few hooks
# to tune the build process for waf specifities and calls the generic
# package infrastructure to generate the necessary make targets
#
# argument 1 is the lowercase package name
# argument 2 is the uppercase package name, including a 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)
################################################################################
define inner-waf-package
# We need host-python to run waf
$(2)_DEPENDENCIES += host-python
$(2)_NEEDS_EXTERNAL_WAF ?= NO
# If the package does not have its own waf, use our own.
ifeq ($$($(2)_NEEDS_EXTERNAL_WAF),YES)
$(2)_DEPENDENCIES += host-waf
$(2)_WAF = $(HOST_DIR)/usr/bin/waf
else
$(2)_WAF = ./waf
endif
#
# Configure step. Only define it if not already defined by the package
# .mk file.
#
ifndef $(2)_CONFIGURE_CMDS
define $(2)_CONFIGURE_CMDS
cd $$(@D) && \
$$(TARGET_CONFIGURE_OPTS) \
$$($(2)_CONF_ENV) \
$$(HOST_DIR)/usr/bin/python2 $$($(2)_WAF) configure \
--prefix=/usr \
--libdir=/usr/lib \
$$($(2)_CONF_OPTS)
endef
endif
#
# Build step. Only define it if not already defined by the package .mk
# file.
#
ifndef $(2)_BUILD_CMDS
define $(2)_BUILD_CMDS
cd $$(@D) && \
$$(TARGET_MAKE_ENV) $$(HOST_DIR)/usr/bin/python2 $$($(2)_WAF) build -j $$(PARALLEL_JOBS)
endef
endif
#
# Staging installation step. Only define it if not already defined by
# the package .mk file.
#
ifndef $(2)_INSTALL_STAGING_CMDS
define $(2)_INSTALL_STAGING_CMDS
cd $$(@D) && \
$$(TARGET_MAKE_ENV) $$(HOST_DIR)/usr/bin/python2 $$($(2)_WAF) \
install --destdir=$$(STAGING_DIR)
endef
endif
#
# Target installation step. Only define it if not already defined by
# the package .mk file.
#
ifndef $(2)_INSTALL_TARGET_CMDS
define $(2)_INSTALL_TARGET_CMDS
cd $$(@D) && \
$$(TARGET_MAKE_ENV) $$(HOST_DIR)/usr/bin/python2 $$($(2)_WAF) \
install --destdir=$$(TARGET_DIR)
endef
endif
# Call the generic package infrastructure to generate the necessary
# make targets
$(call inner-generic-package,$(1),$(2),$(3),$(4))
endef
################################################################################
# waf-package -- the target generator macro for WAF packages
################################################################################
waf-package = $(call inner-waf-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)