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buildroot/package/python3/python3.mk
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Vincent Fazio 54d48c8cad package/python3: miscellaneous fixups 
There is no longer a need to lie about having mercurial installed as of
upstream 5c4b0d063a, so drop the ac_cv_prog_HAS_HG override.

`PYTHON3_REMOVE_USELESS_FILES`, while not exactly useless, had been
referencing stale files and not performing full cleanup:

  * the "m" ABI suffix was dropped in upstream 6c44fde3e0  (python 3.8)
  * the smtpd was dropped in upstream a797fba888  (python 3.1)
  * the wininst* binaries were dropped in upstream 0e2a0f72cc  (python 3.10)

These legacy references have now been dropped.

The smtpd.py file is a bit quirky because despite having been removed
upstream, Buildroot's patches to disable certain modules have been
carrying it forward. This has been rectified.

While here, rework the file removals to accomodate the ABI suffix change
and to globally remove __pycache__ directories. It's important to note
that Buildroot uses legacy pyc placements for sourceless distributions,
meaning __pycache__ is not used at all [0].

When necessary, optimized pyc files will be generated into the correct
paths in subsequent hooks.

[0]: https://peps.python.org/pep-3147/#case-4-legacy-pyc-files-and-source-less-imports

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2024-06-04 23:44:36 +02:00

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################################################################################
#
# python3
#
################################################################################
PYTHON3_VERSION_MAJOR = 3.11
PYTHON3_VERSION = $(PYTHON3_VERSION_MAJOR).8
PYTHON3_SOURCE = Python-$(PYTHON3_VERSION).tar.xz
PYTHON3_SITE = https://python.org/ftp/python/$(PYTHON3_VERSION)
PYTHON3_LICENSE = Python-2.0, others
PYTHON3_LICENSE_FILES = LICENSE
PYTHON3_CPE_ID_VENDOR = python
PYTHON3_CPE_ID_PRODUCT = python
# This host Python is installed in $(HOST_DIR), as it is needed when
# cross-compiling third-party Python modules.
HOST_PYTHON3_CONF_OPTS += \
--without-ensurepip \
--without-cxx-main \
--disable-sqlite3 \
--disable-tk \
--with-expat=system \
--disable-codecs-cjk \
--disable-nis \
--enable-unicodedata \
--disable-test-modules \
--disable-idle3 \
--disable-uuid \
--disable-ossaudiodev
# Make sure that LD_LIBRARY_PATH overrides -rpath.
# This is needed because libpython may be installed at the same time that
# python is called.
# Make python believe we don't have 'hg', so that it doesn't try to
# communicate over the network during the build.
HOST_PYTHON3_CONF_ENV += \
LDFLAGS="$(HOST_LDFLAGS) -Wl,--enable-new-dtags"
PYTHON3_DEPENDENCIES = host-python3 libffi
HOST_PYTHON3_DEPENDENCIES = \
host-autoconf-archive \
host-expat \
host-libffi \
host-pkgconf \
host-zlib
ifeq ($(BR2_PACKAGE_HOST_PYTHON3_BZIP2),y)
HOST_PYTHON3_DEPENDENCIES += host-bzip2
else
HOST_PYTHON3_CONF_OPTS += --disable-bzip2
endif
ifeq ($(BR2_PACKAGE_HOST_PYTHON3_CURSES),y)
HOST_PYTHON3_DEPENDENCIES += host-ncurses
else
HOST_PYTHON3_CONF_OPTS += --disable-curses
endif
ifeq ($(BR2_PACKAGE_HOST_PYTHON3_SSL),y)
HOST_PYTHON3_DEPENDENCIES += host-openssl
else
HOST_PYTHON3_CONF_OPTS += --disable-openssl
endif
PYTHON3_INSTALL_STAGING = YES
ifeq ($(BR2_PACKAGE_PYTHON3_2TO3),y)
PYTHON3_CONF_OPTS += --enable-lib2to3
else
PYTHON3_CONF_OPTS += --disable-lib2to3
endif
ifeq ($(BR2_PACKAGE_PYTHON3_BERKELEYDB),y)
PYTHON3_DEPENDENCIES += berkeleydb
else
PYTHON3_CONF_OPTS += --disable-berkeleydb
endif
ifeq ($(BR2_PACKAGE_PYTHON3_READLINE),y)
PYTHON3_DEPENDENCIES += readline
else
PYTHON3_CONF_OPTS += --disable-readline
endif
ifeq ($(BR2_PACKAGE_PYTHON3_CURSES),y)
PYTHON3_DEPENDENCIES += ncurses
else
PYTHON3_CONF_OPTS += --disable-curses
endif
ifeq ($(BR2_PACKAGE_PYTHON3_DECIMAL),y)
PYTHON3_DEPENDENCIES += mpdecimal
PYTHON3_CONF_OPTS += --with-libmpdec=system
else
PYTHON3_CONF_OPTS += --with-libmpdec=none
endif
ifeq ($(BR2_PACKAGE_PYTHON3_PYEXPAT),y)
PYTHON3_DEPENDENCIES += expat
PYTHON3_CONF_OPTS += --with-expat=system
else
PYTHON3_CONF_OPTS += --with-expat=none
endif
ifeq ($(BR2_PACKAGE_PYTHON3_SQLITE),y)
PYTHON3_DEPENDENCIES += sqlite
else
PYTHON3_CONF_OPTS += --disable-sqlite3
endif
ifeq ($(BR2_PACKAGE_PYTHON3_SSL),y)
PYTHON3_DEPENDENCIES += openssl
PYTHON3_CONF_OPTS += --with-openssl=$(STAGING_DIR)/usr
else
PYTHON3_CONF_OPTS += --disable-openssl
endif
ifneq ($(BR2_PACKAGE_PYTHON3_CODECSCJK),y)
PYTHON3_CONF_OPTS += --disable-codecs-cjk
endif
ifneq ($(BR2_PACKAGE_PYTHON3_UNICODEDATA),y)
PYTHON3_CONF_OPTS += --disable-unicodedata
endif
# Disable auto-detection of uuid.h (util-linux)
# which would add _uuid module support, instead
# default to the pure python implementation
PYTHON3_CONF_OPTS += --disable-uuid
ifeq ($(BR2_PACKAGE_PYTHON3_BZIP2),y)
PYTHON3_DEPENDENCIES += bzip2
else
PYTHON3_CONF_OPTS += --disable-bzip2
endif
ifeq ($(BR2_PACKAGE_PYTHON3_XZ),y)
PYTHON3_DEPENDENCIES += xz
else
PYTHON3_CONF_OPTS += --disable-xz
endif
ifeq ($(BR2_PACKAGE_PYTHON3_ZLIB),y)
PYTHON3_DEPENDENCIES += zlib
else
PYTHON3_CONF_OPTS += --disable-zlib
endif
ifeq ($(BR2_PACKAGE_PYTHON3_OSSAUDIODEV),y)
PYTHON3_CONF_OPTS += --enable-ossaudiodev
else
PYTHON3_CONF_OPTS += --disable-ossaudiodev
endif
PYTHON3_CONF_ENV += \
ac_cv_have_long_long_format=yes \
ac_cv_file__dev_ptmx=yes \
ac_cv_file__dev_ptc=yes \
ac_cv_working_tzset=yes
# GCC is always compliant with IEEE754
ifeq ($(BR2_ENDIAN),"LITTLE")
PYTHON3_CONF_ENV += ac_cv_little_endian_double=yes
else
PYTHON3_CONF_ENV += ac_cv_big_endian_double=yes
endif
# uClibc is known to have a broken wcsftime() implementation, so tell
# Python 3 to fall back to strftime() instead.
ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
PYTHON3_CONF_ENV += ac_cv_func_wcsftime=no
endif
ifeq ($(BR2_PACKAGE_GETTEXT_PROVIDES_LIBINTL),y)
PYTHON3_DEPENDENCIES += gettext
endif
PYTHON3_CONF_OPTS += \
--without-ensurepip \
--without-cxx-main \
--with-build-python=$(HOST_DIR)/bin/python3 \
--with-system-ffi \
--disable-pydoc \
--disable-test-modules \
--disable-tk \
--disable-nis \
--disable-idle3 \
--disable-pyc-build
#
# Remove useless files. In the config/ directory, only the Makefile
# and the pyconfig.h files are needed at runtime.
#
define PYTHON3_REMOVE_USELESS_FILES
rm -f $(TARGET_DIR)/usr/bin/python$(PYTHON3_VERSION_MAJOR)-config
rm -f $(TARGET_DIR)/usr/bin/python3-config
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/config-$(PYTHON3_VERSION_MAJOR)-*/ \
-type f -not -name Makefile -exec rm -rf {} \;
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/ -type d \
-name __pycache__ -exec rm -rf {} \;
endef
PYTHON3_POST_INSTALL_TARGET_HOOKS += PYTHON3_REMOVE_USELESS_FILES
#
# Make sure libpython gets stripped out on target
#
define PYTHON3_ENSURE_LIBPYTHON_STRIPPED
chmod u+w $(TARGET_DIR)/usr/lib/libpython$(PYTHON3_VERSION_MAJOR)*.so
endef
PYTHON3_POST_INSTALL_TARGET_HOOKS += PYTHON3_ENSURE_LIBPYTHON_STRIPPED
PYTHON3_AUTORECONF = YES
PYTHON3_AUTORECONF_OPTS = --include=$(HOST_DIR)/share/autoconf-archive
define PYTHON3_INSTALL_SYMLINK
ln -fs python3 $(TARGET_DIR)/usr/bin/python
endef
PYTHON3_POST_INSTALL_TARGET_HOOKS += PYTHON3_INSTALL_SYMLINK
define HOST_PYTHON3_INSTALL_SYMLINK
ln -fs python3 $(HOST_DIR)/bin/python
ln -fs python3-config $(HOST_DIR)/bin/python-config
endef
HOST_PYTHON3_POST_INSTALL_HOOKS += HOST_PYTHON3_INSTALL_SYMLINK
# Provided to other packages
PYTHON3_PATH = $(STAGING_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/
# Support for socket.AF_BLUETOOTH
ifeq ($(BR2_PACKAGE_BLUEZ5_UTILS_HEADERS),y)
PYTHON3_DEPENDENCIES += bluez5_utils-headers
endif
$(eval $(autotools-package))
$(eval $(host-autotools-package))
ifeq ($(BR2_REPRODUCIBLE),y)
define PYTHON3_FIX_TIME
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR) -name '*.py' -print0 | \
xargs -0 --no-run-if-empty touch -d @$(SOURCE_DATE_EPOCH)
endef
endif
define PYTHON3_CREATE_PYC_FILES
$(PYTHON3_FIX_TIME)
PYTHONPATH="$(PYTHON3_PATH)" \
$(HOST_DIR)/bin/python$(PYTHON3_VERSION_MAJOR) \
$(PYTHON3_DIR)/Lib/compileall.py \
$(if $(VERBOSE),,-q) \
$(if $(BR2_PACKAGE_PYTHON3_PYC_ONLY),-b) \
-s $(TARGET_DIR) \
-p / \
$(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)
endef
ifeq ($(BR2_PACKAGE_PYTHON3_PYC_ONLY)$(BR2_PACKAGE_PYTHON3_PY_PYC),y)
PYTHON3_TARGET_FINALIZE_HOOKS += PYTHON3_CREATE_PYC_FILES
endif
ifeq ($(BR2_PACKAGE_PYTHON3_PYC_ONLY),y)
define PYTHON3_REMOVE_PY_FILES
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR) -name '*.py' \
$(if $(strip $(KEEP_PYTHON_PY_FILES)),-not \( $(call finddirclauses,$(TARGET_DIR),$(KEEP_PYTHON_PY_FILES)) \) ) \
-print0 | \
xargs -0 --no-run-if-empty rm -f
endef
PYTHON3_TARGET_FINALIZE_HOOKS += PYTHON3_REMOVE_PY_FILES
endif
# Normally, *.pyc files should not have been compiled, but just in
# case, we make sure we remove all of them.
ifeq ($(BR2_PACKAGE_PYTHON3_PY_ONLY),y)
define PYTHON3_REMOVE_PYC_FILES
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR) -name '*.pyc' -print0 | \
xargs -0 --no-run-if-empty rm -f
endef
PYTHON3_TARGET_FINALIZE_HOOKS += PYTHON3_REMOVE_PYC_FILES
endif
# In all cases, we don't want to keep the optimized .opt-1.pyc and
# .opt-2.pyc files, since they can't work without their non-optimized
# variant.
define PYTHON3_REMOVE_OPTIMIZED_PYC_FILES
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR) -name '*.opt-1.pyc' -print0 -o -name '*.opt-2.pyc' -print0 | \
xargs -0 --no-run-if-empty rm -f
endef
PYTHON3_TARGET_FINALIZE_HOOKS += PYTHON3_REMOVE_OPTIMIZED_PYC_FILES
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