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85272eab04
When BR2_PACKAGE_PYTHON{,3}_PYC_ONLY=y, we force remove all .py files
from the system, as they have all been byte-compiled into their .pyc
variants.
However, it turns out that some packages (e.g: OpenCV) do some funky
things with a few .py files: they pass them through Python's
execfile() facility, which only works with .py files and not .pyc
files. It is used by OpenCV for example to read two small
configuration files.
In order to support such use cases, this commit introduces a very
simple mechanism by which packages can exclude some path patterns from
the .py removal: a per-package <pkg>_KEEP_PY_FILES variable that is
collected into a global PYTHON_KEEP_PY_FILES variable, then used by
the python/python3 target-finalize hooks.
This variable is intentionally not documented, this is really a hack
that we ideally would like to see go away, and we'd rather not see its
usage spread too much.
This is necessary to be able to fix bug #12171.
[Peter: check if PYTHON_KEEP_PY_FILES contains non-white space]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 56f3ed3fc1)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
289 lines
8.3 KiB
Makefile
289 lines
8.3 KiB
Makefile
################################################################################
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#
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# python
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#
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################################################################################
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PYTHON_VERSION_MAJOR = 2.7
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PYTHON_VERSION = $(PYTHON_VERSION_MAJOR).17
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PYTHON_SOURCE = Python-$(PYTHON_VERSION).tar.xz
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PYTHON_SITE = https://python.org/ftp/python/$(PYTHON_VERSION)
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PYTHON_LICENSE = Python-2.0, others
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PYTHON_LICENSE_FILES = LICENSE
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PYTHON_LIBTOOL_PATCH = NO
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# Python needs itself to be built, so in order to cross-compile
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# Python, we need to build a host Python first. This host Python is
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# also installed in $(HOST_DIR), as it is needed when cross-compiling
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# third-party Python modules.
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HOST_PYTHON_CONF_OPTS += \
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--enable-static \
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--without-cxx-main \
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--disable-sqlite3 \
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--disable-tk \
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--with-expat=system \
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--disable-curses \
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--disable-codecs-cjk \
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--disable-nis \
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--enable-unicodedata \
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--disable-dbm \
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--disable-gdbm \
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--disable-bsddb \
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--disable-test-modules \
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--disable-bz2 \
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--disable-ssl \
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--disable-ossaudiodev \
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--disable-pyo-build
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# Make sure that LD_LIBRARY_PATH overrides -rpath.
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# This is needed because libpython may be installed at the same time that
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# python is called.
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# Make python believe we don't have 'hg' and 'svn', so that it doesn't
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# try to communicate over the network during the build.
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HOST_PYTHON_CONF_ENV += \
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LDFLAGS="$(HOST_LDFLAGS) -Wl,--enable-new-dtags" \
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ac_cv_prog_HAS_HG=/bin/false \
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ac_cv_prog_SVNVERSION=/bin/false
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# Building host python in parallel sometimes triggers a "Bus error"
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# during the execution of "./python setup.py build" in the
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# installation step. It is probably due to the installation of a
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# shared library taking place in parallel to the execution of
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# ./python, causing spurious Bus error. Building host-python with
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# MAKE1 has shown to workaround the problem.
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HOST_PYTHON_MAKE = $(MAKE1)
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PYTHON_DEPENDENCIES = host-python libffi $(TARGET_NLS_DEPENDENCIES)
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HOST_PYTHON_DEPENDENCIES = host-expat host-zlib
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PYTHON_INSTALL_STAGING = YES
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ifeq ($(BR2_PACKAGE_PYTHON_READLINE),y)
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PYTHON_DEPENDENCIES += readline
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else
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PYTHON_CONF_OPTS += --disable-readline
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_CURSES),y)
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PYTHON_DEPENDENCIES += ncurses
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else
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PYTHON_CONF_OPTS += --disable-curses
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_PYEXPAT),y)
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PYTHON_DEPENDENCIES += expat
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PYTHON_CONF_OPTS += --with-expat=system
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else
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PYTHON_CONF_OPTS += --with-expat=none
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_BSDDB),y)
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PYTHON_DEPENDENCIES += berkeleydb
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else
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PYTHON_CONF_OPTS += --disable-bsddb
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_SQLITE),y)
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PYTHON_DEPENDENCIES += sqlite
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else
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PYTHON_CONF_OPTS += --disable-sqlite3
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_SSL),y)
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PYTHON_DEPENDENCIES += openssl
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else
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PYTHON_CONF_OPTS += --disable-ssl
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endif
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ifneq ($(BR2_PACKAGE_PYTHON_CODECSCJK),y)
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PYTHON_CONF_OPTS += --disable-codecs-cjk
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endif
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ifneq ($(BR2_PACKAGE_PYTHON_UNICODEDATA),y)
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PYTHON_CONF_OPTS += --disable-unicodedata
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endif
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# Default is UCS2 w/o a conf opt
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ifeq ($(BR2_PACKAGE_PYTHON_UCS4),y)
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# host-python must have the same UCS2/4 configuration as the target
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# python
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HOST_PYTHON_CONF_OPTS += --enable-unicode=ucs4
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PYTHON_CONF_OPTS += --enable-unicode=ucs4
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_BZIP2),y)
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PYTHON_DEPENDENCIES += bzip2
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else
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PYTHON_CONF_OPTS += --disable-bz2
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_ZLIB),y)
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PYTHON_DEPENDENCIES += zlib
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else
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PYTHON_CONF_OPTS += --disable-zlib
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_HASHLIB),y)
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PYTHON_DEPENDENCIES += openssl
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else
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PYTHON_CONF_OPTS += --disable-hashlib
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_OSSAUDIODEV),y)
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PYTHON_CONF_OPTS += --enable-ossaudiodev
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else
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PYTHON_CONF_OPTS += --disable-ossaudiodev
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endif
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# Make python believe we don't have 'hg' and 'svn', so that it doesn't
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# try to communicate over the network during the build.
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PYTHON_CONF_ENV += \
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ac_cv_have_long_long_format=yes \
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ac_cv_file__dev_ptmx=yes \
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ac_cv_file__dev_ptc=yes \
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ac_cv_working_tzset=yes \
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ac_cv_prog_HAS_HG=/bin/false \
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ac_cv_prog_SVNVERSION=/bin/false
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# GCC is always compliant with IEEE754
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ifeq ($(BR2_ENDIAN),"LITTLE")
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PYTHON_CONF_ENV += ac_cv_little_endian_double=yes
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else
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PYTHON_CONF_ENV += ac_cv_big_endian_double=yes
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endif
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PYTHON_CONF_OPTS += \
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--without-cxx-main \
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--without-doc-strings \
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--with-system-ffi \
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--disable-pydoc \
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--disable-test-modules \
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--disable-lib2to3 \
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--disable-gdbm \
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--disable-tk \
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--disable-nis \
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--disable-dbm \
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--disable-pyo-build \
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--disable-pyc-build
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# This is needed to make sure the Python build process doesn't try to
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# regenerate those files with the pgen program. Otherwise, it builds
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# pgen for the target, and tries to run it on the host.
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define PYTHON_TOUCH_GRAMMAR_FILES
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touch $(@D)/Include/graminit.h $(@D)/Python/graminit.c
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endef
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PYTHON_POST_PATCH_HOOKS += PYTHON_TOUCH_GRAMMAR_FILES
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#
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# Remove useless files. In the config/ directory, only the Makefile
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# and the pyconfig.h files are needed at runtime.
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#
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# idle & smtpd.py have bad shebangs and are mostly samples
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#
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define PYTHON_REMOVE_USELESS_FILES
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rm -f $(TARGET_DIR)/usr/bin/python$(PYTHON_VERSION_MAJOR)-config
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rm -f $(TARGET_DIR)/usr/bin/python2-config
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rm -f $(TARGET_DIR)/usr/bin/python-config
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rm -f $(TARGET_DIR)/usr/bin/smtpd.py
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for i in `find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/config/ \
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-type f -not -name pyconfig.h -a -not -name Makefile` ; do \
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rm -f $$i ; \
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done
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endef
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PYTHON_POST_INSTALL_TARGET_HOOKS += PYTHON_REMOVE_USELESS_FILES
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#
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# Make sure libpython gets stripped out on target
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#
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define PYTHON_ENSURE_LIBPYTHON_STRIPPED
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chmod u+w $(TARGET_DIR)/usr/lib/libpython$(PYTHON_VERSION_MAJOR)*.so
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endef
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PYTHON_POST_INSTALL_TARGET_HOOKS += PYTHON_ENSURE_LIBPYTHON_STRIPPED
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# Always install the python symlink in the target tree
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define PYTHON_INSTALL_TARGET_PYTHON_SYMLINK
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ln -sf python2 $(TARGET_DIR)/usr/bin/python
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endef
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PYTHON_POST_INSTALL_TARGET_HOOKS += PYTHON_INSTALL_TARGET_PYTHON_SYMLINK
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# Always install the python-config symlink in the staging tree
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define PYTHON_INSTALL_STAGING_PYTHON_CONFIG_SYMLINK
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ln -sf python2-config $(STAGING_DIR)/usr/bin/python-config
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endef
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PYTHON_POST_INSTALL_STAGING_HOOKS += PYTHON_INSTALL_STAGING_PYTHON_CONFIG_SYMLINK
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PYTHON_AUTORECONF = YES
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# Some packages may have build scripts requiring python2.
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# Only install the python symlink in the host tree if python3 is not enabled
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# for the target, otherwise the default python program may be missing.
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ifneq ($(BR2_PACKAGE_PYTHON3),y)
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define HOST_PYTHON_INSTALL_PYTHON_SYMLINK
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ln -sf python2 $(HOST_DIR)/bin/python
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ln -sf python2-config $(HOST_DIR)/bin/python-config
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endef
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HOST_PYTHON_POST_INSTALL_HOOKS += HOST_PYTHON_INSTALL_PYTHON_SYMLINK
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endif
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# Provided to other packages
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PYTHON_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)/sysconfigdata/
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$(eval $(autotools-package))
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$(eval $(host-autotools-package))
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ifeq ($(BR2_REPRODUCIBLE),y)
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define PYTHON_FIX_TIME
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find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.py' -print0 | \
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xargs -0 --no-run-if-empty touch -d @$(SOURCE_DATE_EPOCH)
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endef
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endif
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define PYTHON_CREATE_PYC_FILES
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$(PYTHON_FIX_TIME)
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PYTHONPATH="$(PYTHON_PATH)" \
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cd $(TARGET_DIR) && $(HOST_DIR)/bin/python$(PYTHON_VERSION_MAJOR) \
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$(TOPDIR)/support/scripts/pycompile.py \
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$(if $(BR2_REPRODUCIBLE),--force) \
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usr/lib/python$(PYTHON_VERSION_MAJOR)
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endef
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ifeq ($(BR2_PACKAGE_PYTHON_PYC_ONLY)$(BR2_PACKAGE_PYTHON_PY_PYC),y)
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PYTHON_TARGET_FINALIZE_HOOKS += PYTHON_CREATE_PYC_FILES
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endif
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ifeq ($(BR2_PACKAGE_PYTHON_PYC_ONLY),y)
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define PYTHON_REMOVE_PY_FILES
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find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.py' \
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$(if $(strip $(PYTHON_KEEP_PY_FILES)),-not \( $(call finddirclauses,$(TARGET_DIR),$(PYTHON_KEEP_PY_FILES)) \) ) \
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-print0 | \
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xargs -0 --no-run-if-empty rm -f
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endef
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PYTHON_TARGET_FINALIZE_HOOKS += PYTHON_REMOVE_PY_FILES
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endif
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# Normally, *.pyc files should not have been compiled, but just in
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# case, we make sure we remove all of them.
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ifeq ($(BR2_PACKAGE_PYTHON_PY_ONLY),y)
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define PYTHON_REMOVE_PYC_FILES
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find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.pyc' -print0 | \
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xargs -0 --no-run-if-empty rm -f
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endef
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PYTHON_TARGET_FINALIZE_HOOKS += PYTHON_REMOVE_PYC_FILES
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endif
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# In all cases, we don't want to keep the optimized .pyo files
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define PYTHON_REMOVE_PYO_FILES
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find $(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR) -name '*.pyo' -print0 | \
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xargs -0 --no-run-if-empty rm -f
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endef
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PYTHON_TARGET_FINALIZE_HOOKS += PYTHON_REMOVE_PYO_FILES
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