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8445501740
Thanks to the 2 previous patches of the series, BR_PATH contains all locations in which host-packages may install programs. This patch replaces the occurrences TARGET_PATH and HOST_PATH with BR_PATH, everywhere these variables are used in the *.mk files. Signed-off-by: Samuel Martin <s.martin49@gmail.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
260 lines
8.8 KiB
Makefile
260 lines
8.8 KiB
Makefile
################################################################################
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# Python package infrastructure
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#
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# This file implements an infrastructure that eases development of
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# package .mk files for Python packages. It should be used for all
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# packages that use Python setup.py/setuptools as their build system.
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#
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# See the Buildroot documentation for details on the usage of this
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# infrastructure
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#
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# In terms of implementation, this Python infrastructure requires the
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# .mk file to only specify metadata informations about the package:
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# name, version, download URL, etc.
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#
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# We still allow the package .mk file to override what the different
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# steps are doing, if needed. For example, if <PKG>_BUILD_CMDS is
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# already defined, it is used as the list of commands to perform to
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# build the package, instead of the default Python behaviour. The
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# package can also define some post operation hooks.
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#
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################################################################################
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# Target distutils-based packages
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PKG_PYTHON_DISTUTILS_ENV = \
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PATH=$(BR_PATH) \
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CC="$(TARGET_CC)" \
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CFLAGS="$(TARGET_CFLAGS)" \
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LDFLAGS="$(TARGET_LDFLAGS)" \
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LDSHARED="$(TARGET_CROSS)gcc -shared" \
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PYTHONPATH="$(if $(BR2_PACKAGE_PYTHON3),$(PYTHON3_PATH),$(PYTHON_PATH))" \
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_python_sysroot=$(STAGING_DIR) \
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_python_prefix=/usr \
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_python_exec_prefix=/usr
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PKG_PYTHON_DISTUTILS_BUILD_OPT = \
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--executable=/usr/bin/python
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PKG_PYTHON_DISTUTILS_INSTALL_OPT = \
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--prefix=$(TARGET_DIR)/usr
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# Host distutils-based packages
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HOST_PKG_PYTHON_DISTUTILS_ENV = \
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PATH=$(BR_PATH)
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HOST_PKG_PYTHON_DISTUTILS_INSTALL_OPT = \
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--prefix=$(HOST_DIR)/usr
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# Target setuptools-based packages
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PKG_PYTHON_SETUPTOOLS_ENV = \
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PATH=$(BR_PATH) \
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PYTHONPATH="$(if $(BR2_PACKAGE_PYTHON3),$(PYTHON3_PATH),$(PYTHON_PATH))" \
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_python_sysroot=$(STAGING_DIR) \
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_python_prefix=/usr \
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_python_exec_prefix=/usr
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PKG_PYTHON_SETUPTOOLS_INSTALL_OPT = \
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--prefix=$(TARGET_DIR)/usr \
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--executable=/usr/bin/python \
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--single-version-externally-managed \
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--root=/
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# Host setuptools-based packages
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HOST_PKG_PYTHON_SETUPTOOLS_ENV = \
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PATH=$(BR_PATH)
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HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_OPT = \
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--prefix=$(HOST_DIR)/usr
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################################################################################
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# inner-python-package -- defines how the configuration, compilation
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# and installation of a Python package should be done, implements a
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# few hooks to tune the build process and calls the generic package
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# infrastructure to generate the necessary make targets
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#
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# argument 1 is the lowercase package name
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# argument 2 is the uppercase package name, including an HOST_ prefix
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# for host packages
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# argument 3 is the uppercase package name, without the HOST_ prefix
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# for host packages
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# argument 4 is the type (target or host)
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################################################################################
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define inner-python-package
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$(2)_SRCDIR = $$($(2)_DIR)/$($(2)_SUBDIR)
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$(2)_BUILDDIR = $$($(2)_SRCDIR)
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$(2)_ENV ?=
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$(2)_BUILD_OPT ?=
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$(2)_INSTALL_OPT ?=
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ifndef $(2)_SETUP_TYPE
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ifdef $(3)_SETUP_TYPE
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$(2)_SETUP_TYPE = $($(3)_SETUP_TYPE)
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else
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$$(error "$(2)_SETUP_TYPE must be set")
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endif
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endif
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# Distutils
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ifeq ($$($(2)_SETUP_TYPE),distutils)
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ifeq ($(4),target)
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$(2)_BASE_ENV = $$(PKG_PYTHON_DISTUTILS_ENV)
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$(2)_BASE_BUILD_TGT = build
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$(2)_BASE_BUILD_OPT = $$(PKG_PYTHON_DISTUTILS_BUILD_OPT)
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$(2)_BASE_INSTALL_OPT = $$(PKG_PYTHON_DISTUTILS_INSTALL_OPT)
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else
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$(2)_BASE_ENV = $$(HOST_PKG_PYTHON_DISTUTILS_ENV)
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$(2)_BASE_BUILD_TGT = build
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$(2)_BASE_BUILD_OPT =
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$(2)_BASE_INSTALL_OPT = $$(HOST_PKG_PYTHON_DISTUTILS_INSTALL_OPT)
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endif
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# Setuptools
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else ifeq ($$($(2)_SETUP_TYPE),setuptools)
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ifeq ($(4),target)
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$(2)_BASE_ENV = $$(PKG_PYTHON_SETUPTOOLS_ENV)
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$(2)_BASE_BUILD_TGT = build
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$(2)_BASE_BUILD_OPT =
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$(2)_BASE_INSTALL_OPT = $$(PKG_PYTHON_SETUPTOOLS_INSTALL_OPT)
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else
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$(2)_BASE_ENV = $$(HOST_PKG_PYTHON_SETUPTOOLS_ENV)
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$(2)_BASE_BUILD_TGT = build
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$(2)_BASE_BUILD_OPT =
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$(2)_BASE_INSTALL_OPT = $$(HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_OPT)
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endif
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else
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$$(error "Invalid $(2)_SETUP_TYPE. Valid options are 'distutils' or 'setuptools'")
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endif
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# The below statement intends to calculate the dependencies of host
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# packages by derivating them from the dependencies of the
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# corresponding target package, after adding the 'host-' prefix in
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# front of the dependencies.
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#
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# However it must be repeated from inner-generic-package, as we need
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# to exclude the python, host-python and host-python-setuptools
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# packages, which are added below in the list of dependencies
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# depending on the package characteristics, and shouldn't be derived
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# automatically from the dependencies of the corresponding target
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# package.
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$(2)_DEPENDENCIES ?= $(filter-out host-python host-python3 host-python-setuptools host-toolchain $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))
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# Target packages need both the python interpreter on the target (for
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# runtime) and the python interpreter on the host (for
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# compilation). However, host packages only need the python
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# interpreter on the host, whose version may be enforced by setting
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# the *_NEEDS_HOST_PYTHON variable.
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#
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# So:
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# - for target packages, we always depend on the default python interpreter
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# (the one selected by the config);
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# - for host packages:
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# - if *_NEEDS_HOST_PYTHON is not set, then we depend on use the default
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# interperter;
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# - otherwise, we depend on the one requested by *_NEEDS_HOST_PYTHON.
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#
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ifeq ($(4),target)
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$(2)_DEPENDENCIES += $(if $(BR2_PACKAGE_PYTHON3),host-python3 python3,host-python python)
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else
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ifeq ($($(2)_NEEDS_HOST_PYTHON),)
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$(2)_DEPENDENCIES += $(if $(BR2_PACKAGE_PYTHON3),host-python3,host-python)
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else
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ifeq ($($(2)_NEEDS_HOST_PYTHON),python2)
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$(2)_DEPENDENCIES += host-python
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else ifeq ($($(2)_NEEDS_HOST_PYTHON),python3)
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$(2)_DEPENDENCIES += host-python3
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else
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$$(error Incorrect value '$($(2)_NEEDS_HOST_PYTHON)' for $(2)_NEEDS_HOST_PYTHON)
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endif
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endif # ($($(2)_NEEDS_HOST_PYTHON),)
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endif # ($(4),target)
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# Setuptools based packages will need host-python-setuptools (both
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# host and target). We need to have a special exclusion for the
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# host-setuptools package itself: it is setuptools-based, but
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# shouldn't depend on host-setuptools (because it would otherwise
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# depend on itself!).
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ifeq ($$($(2)_SETUP_TYPE),setuptools)
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ifneq ($(2),HOST_PYTHON_SETUPTOOLS)
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$(2)_DEPENDENCIES += host-python-setuptools
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endif
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endif
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# Python interpreter to use for building the package.
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#
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# We may want to specify the python interpreter to be used for building a
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# package, especially for host-packages (target packages must be built using
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# the same version of the interpreter as the one installed on the target).
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#
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# So:
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# - for target packages, we always use the default python interpreter (which
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# is the same version as the one built and installed on the target);
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# - for host packages:
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# - if *_NEEDS_HOST_PYTHON is not set, then we use use the default
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# interperter;
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# - otherwise, we use the one requested by *_NEEDS_HOST_PYTHON.
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#
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ifeq ($(4),target)
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$(2)_PYTHON_INTERPRETER = $(HOST_DIR)/usr/bin/python
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else
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ifeq ($($(2)_NEEDS_HOST_PYTHON),)
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$(2)_PYTHON_INTERPRETER = $(HOST_DIR)/usr/bin/python
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else
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$(2)_PYTHON_INTERPRETER = $(HOST_DIR)/usr/bin/$($(2)_NEEDS_HOST_PYTHON)
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endif
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endif
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#
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# Build step. Only define it if not already defined by the package .mk
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# file.
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#
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ifndef $(2)_BUILD_CMDS
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define $(2)_BUILD_CMDS
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(cd $$($$(PKG)_BUILDDIR)/; \
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$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
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$$($(2)_PYTHON_INTERPRETER) setup.py \
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$$($$(PKG)_BASE_BUILD_TGT) \
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$$($$(PKG)_BASE_BUILD_OPT) $$($$(PKG)_BUILD_OPT))
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endef
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endif
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#
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# Host installation step. Only define it if not already defined by the
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# package .mk file.
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#
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ifndef $(2)_INSTALL_CMDS
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define $(2)_INSTALL_CMDS
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(cd $$($$(PKG)_BUILDDIR)/; \
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$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
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$$($(2)_PYTHON_INTERPRETER) setup.py install \
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$$($$(PKG)_BASE_INSTALL_OPT) $$($$(PKG)_INSTALL_OPT))
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endef
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endif
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#
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# Target installation step. Only define it if not already defined by
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# the package .mk file.
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#
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ifndef $(2)_INSTALL_TARGET_CMDS
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define $(2)_INSTALL_TARGET_CMDS
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(cd $$($$(PKG)_BUILDDIR)/; \
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$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
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$$($(2)_PYTHON_INTERPRETER) setup.py install \
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$$($$(PKG)_BASE_INSTALL_OPT) $$($$(PKG)_INSTALL_OPT))
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endef
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endif
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# Call the generic package infrastructure to generate the necessary
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# make targets
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$(call inner-generic-package,$(1),$(2),$(3),$(4))
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endef
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################################################################################
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# python-package -- the target generator macro for Python packages
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################################################################################
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python-package = $(call inner-python-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
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host-python-package = $(call inner-python-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
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