1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
################################################################################
# Python package infrastructure
#
# This file implements an infrastructure that eases development of
# package .mk files for Python packages. It should be used for all
# packages that use Python setup.py/setuptools as their build system.
#
# See the Buildroot documentation for details on the usage of this
# infrastructure
#
# In terms of implementation, this Python 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 Python behaviour. The
# package can also define some post operation hooks.
#
################################################################################
# Target distutils-based packages
PKG_PYTHON_DISTUTILS_ENV = \
PATH=$(BR_PATH) \
CC="$(TARGET_CC)" \
CFLAGS="$(TARGET_CFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS)" \
LDSHARED="$(TARGET_CROSS)gcc -shared" \
PYTHONPATH="$(if $(BR2_PACKAGE_PYTHON3),$(PYTHON3_PATH),$(PYTHON_PATH))" \
_python_sysroot=$(STAGING_DIR) \
_python_prefix=/usr \
_python_exec_prefix=/usr
PKG_PYTHON_DISTUTILS_BUILD_OPTS = \
--executable=/usr/bin/python
PKG_PYTHON_DISTUTILS_INSTALL_TARGET_OPTS = \
--prefix=$(TARGET_DIR)/usr
PKG_PYTHON_DISTUTILS_INSTALL_STAGING_OPTS = \
--prefix=$(STAGING_DIR)/usr
# Host distutils-based packages
HOST_PKG_PYTHON_DISTUTILS_ENV = \
PATH=$(BR_PATH)
HOST_PKG_PYTHON_DISTUTILS_INSTALL_OPTS = \
--prefix=$(HOST_DIR)/usr
# Target setuptools-based packages
PKG_PYTHON_SETUPTOOLS_ENV = \
PATH=$(BR_PATH) \
PYTHONPATH="$(if $(BR2_PACKAGE_PYTHON3),$(PYTHON3_PATH),$(PYTHON_PATH))" \
_python_sysroot=$(STAGING_DIR) \
_python_prefix=/usr \
_python_exec_prefix=/usr
PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_OPTS = \
--prefix=$(TARGET_DIR)/usr \
--executable=/usr/bin/python \
--single-version-externally-managed \
--root=/
PKG_PYTHON_SETUPTOOLS_INSTALL_STAGING_OPTS = \
--prefix=$(STAGING_DIR)/usr \
--executable=/usr/bin/python \
--single-version-externally-managed \
--root=/
# Host setuptools-based packages
HOST_PKG_PYTHON_SETUPTOOLS_ENV = \
PATH=$(BR_PATH)
HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_OPTS = \
--prefix=$(HOST_DIR)/usr
################################################################################
# inner-python-package -- defines how the configuration, compilation
# and installation of a Python package should be done, implements a
# few hooks to tune the build process 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-python-package
$(2)_SRCDIR = $$($(2)_DIR)/$$($(2)_SUBDIR)
$(2)_BUILDDIR = $$($(2)_SRCDIR)
$(2)_ENV ?=
$(2)_BUILD_OPTS ?=
$(2)_INSTALL_OPTS ?=
ifndef $(2)_SETUP_TYPE
ifdef $(3)_SETUP_TYPE
$(2)_SETUP_TYPE = $$($(3)_SETUP_TYPE)
else
$$(error "$(2)_SETUP_TYPE must be set")
endif
endif
# Distutils
ifeq ($$($(2)_SETUP_TYPE),distutils)
ifeq ($(4),target)
$(2)_BASE_ENV = $$(PKG_PYTHON_DISTUTILS_ENV)
$(2)_BASE_BUILD_TGT = build
$(2)_BASE_BUILD_OPTS = $$(PKG_PYTHON_DISTUTILS_BUILD_OPTS)
$(2)_BASE_INSTALL_TARGET_OPTS = $$(PKG_PYTHON_DISTUTILS_INSTALL_TARGET_OPTS)
$(2)_BASE_INSTALL_STAGING_OPTS = $$(PKG_PYTHON_DISTUTILS_INSTALL_STAGING_OPTS)
else
$(2)_BASE_ENV = $$(HOST_PKG_PYTHON_DISTUTILS_ENV)
$(2)_BASE_BUILD_TGT = build
$(2)_BASE_BUILD_OPTS =
$(2)_BASE_INSTALL_OPTS = $$(HOST_PKG_PYTHON_DISTUTILS_INSTALL_OPTS)
endif
# Setuptools
else ifeq ($$($(2)_SETUP_TYPE),setuptools)
ifeq ($(4),target)
$(2)_BASE_ENV = $$(PKG_PYTHON_SETUPTOOLS_ENV)
$(2)_BASE_BUILD_TGT = build
$(2)_BASE_BUILD_OPTS =
$(2)_BASE_INSTALL_TARGET_OPTS = $$(PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_OPTS)
$(2)_BASE_INSTALL_STAGING_OPTS = $$(PKG_PYTHON_SETUPTOOLS_INSTALL_STAGING_OPTS)
else
$(2)_BASE_ENV = $$(HOST_PKG_PYTHON_SETUPTOOLS_ENV)
$(2)_BASE_BUILD_TGT = build
$(2)_BASE_BUILD_OPTS =
$(2)_BASE_INSTALL_OPTS = $$(HOST_PKG_PYTHON_SETUPTOOLS_INSTALL_OPTS)
endif
else
$$(error "Invalid $(2)_SETUP_TYPE. Valid options are 'distutils' or 'setuptools'")
endif
# Target packages need both the python interpreter on the target (for
# runtime) and the python interpreter on the host (for
# compilation). However, host packages only need the python
# interpreter on the host, whose version may be enforced by setting
# the *_NEEDS_HOST_PYTHON variable.
#
# So:
# - for target packages, we always depend on the default python interpreter
# (the one selected by the config);
# - for host packages:
# - if *_NEEDS_HOST_PYTHON is not set, then we depend on use the default
# interperter;
# - otherwise, we depend on the one requested by *_NEEDS_HOST_PYTHON.
#
ifeq ($(4),target)
$(2)_DEPENDENCIES += $$(if $$(BR2_PACKAGE_PYTHON3),host-python3 python3,host-python python)
else
ifeq ($$($(2)_NEEDS_HOST_PYTHON),)
$(2)_DEPENDENCIES += $$(if $$(BR2_PACKAGE_PYTHON3),host-python3,host-python)
else
ifeq ($$($(2)_NEEDS_HOST_PYTHON),python2)
$(2)_DEPENDENCIES += host-python
else ifeq ($$($(2)_NEEDS_HOST_PYTHON),python3)
$(2)_DEPENDENCIES += host-python3
else
$$(error Incorrect value '$$($(2)_NEEDS_HOST_PYTHON)' for $(2)_NEEDS_HOST_PYTHON)
endif
endif # ($$($(2)_NEEDS_HOST_PYTHON),)
endif # ($(4),target)
# Setuptools based packages will need host-python-setuptools (both
# host and target). We need to have a special exclusion for the
# host-setuptools package itself: it is setuptools-based, but
# shouldn't depend on host-setuptools (because it would otherwise
# depend on itself!).
ifeq ($$($(2)_SETUP_TYPE),setuptools)
ifneq ($(2),HOST_PYTHON_SETUPTOOLS)
$(2)_DEPENDENCIES += host-python-setuptools
endif
endif
# Python interpreter to use for building the package.
#
# We may want to specify the python interpreter to be used for building a
# package, especially for host-packages (target packages must be built using
# the same version of the interpreter as the one installed on the target).
#
# So:
# - for target packages, we always use the default python interpreter (which
# is the same version as the one built and installed on the target);
# - for host packages:
# - if *_NEEDS_HOST_PYTHON is not set, then we use use the default
# interperter;
# - otherwise, we use the one requested by *_NEEDS_HOST_PYTHON.
#
ifeq ($(4),target)
$(2)_PYTHON_INTERPRETER = $$(HOST_DIR)/usr/bin/python
else
ifeq ($$($(2)_NEEDS_HOST_PYTHON),)
$(2)_PYTHON_INTERPRETER = $$(HOST_DIR)/usr/bin/python
else
$(2)_PYTHON_INTERPRETER = $$(HOST_DIR)/usr/bin/$$($(2)_NEEDS_HOST_PYTHON)
endif
endif
#
# Build step. Only define it if not already defined by the package .mk
# file.
#
ifndef $(2)_BUILD_CMDS
define $(2)_BUILD_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
$$($(2)_PYTHON_INTERPRETER) setup.py \
$$($$(PKG)_BASE_BUILD_TGT) \
$$($$(PKG)_BASE_BUILD_OPTS) $$($$(PKG)_BUILD_OPTS))
endef
endif
#
# Host installation step. Only define it if not already defined by the
# package .mk file.
#
ifndef $(2)_INSTALL_CMDS
define $(2)_INSTALL_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
$$($(2)_PYTHON_INTERPRETER) setup.py install \
$$($$(PKG)_BASE_INSTALL_OPTS) $$($$(PKG)_INSTALL_OPTS))
endef
endif
#
# Target installation step. Only define it if not already defined by
# the package .mk file.
#
ifndef $(2)_INSTALL_TARGET_CMDS
define $(2)_INSTALL_TARGET_CMDS
(cd $$($$(PKG)_BUILDDIR)/; \
$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
$$($(2)_PYTHON_INTERPRETER) setup.py install --no-compile \
$$($$(PKG)_BASE_INSTALL_TARGET_OPTS) \
$$($$(PKG)_INSTALL_TARGET_OPTS))
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 $$($$(PKG)_BUILDDIR)/; \
$$($$(PKG)_BASE_ENV) $$($$(PKG)_ENV) \
$$($(2)_PYTHON_INTERPRETER) setup.py install \
$$($$(PKG)_BASE_INSTALL_STAGING_OPTS) \
$$($$(PKG)_INSTALL_STAGING_OPTS))
endef
endif
# Call the generic package infrastructure to generate the necessary
# make targets
$(call inner-generic-package,$(1),$(2),$(3),$(4))
endef
################################################################################
# python-package -- the target generator macro for Python packages
################################################################################
python-package = $(call inner-python-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
host-python-package = $(call inner-python-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
|
