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kumquat-buildroot/package/python3/python3.mk
Thomas Petazzoni 476f5fc8f6 python3: bump to 3.5.1 
The major changes in terms of Buildroot packaging are:

 - Due to PEP488, Python no longer generates .pyc (unoptimized) and
   .pyo (optimized) byte-code files. Instead, it generates <foo>.pyc,
   <foo>.opt-1.pyc and <foo>.opt-2.pyc. Therefore, we removed the
   --disable-pyo-build option and kept only the --disable-pyc-build
   option, which completely disables building all .pyc files. In
   addition, since the optimized .opt-X.pyc files don't work if the
   corresponding un-optimized .pyc file is not present, we are for the
   moment unconditionally removing the optimized ones (keeping both
   the unoptimized and optimized ones doubles the required filesystem
   size!). So basically we preserve the behavior we had before this
   commit:

     BR2_PACKAGE_PYTHON3_PY_ONLY -> only *.py
     BR2_PACKAGE_PYTHON3_PYC_ONLY -> only non-optimized *.pyc
     BR2_PACKAGE_PYTHON3_PY_PYC -> both the *.py and non-optimized *.pyc

   To achieve this, the TARGET_FINALIZE_HOOKS are reworked:

    PYTHON3_REMOVE_PY_FILES is responsible for removing *.py files in
    the BR2_PACKAGE_PYTHON3_PYC_ONLY case.

    PYTHON3_REMOVE_PYC_FILES is responsible for removing *.pyc files
    in the BR2_PACKAGE_PYTHON3_PY_ONLY case.

    PYTHON3_REMOVE_OPTIMIZED_PYC_FILES is responsible for removing the
    optimized *.opt-1.pyc and *.opt-2.pyc files, which is done
    unconditionally.

 - The PEP3147 disabling patch had to be significantly reworked due to
   the code having changed heavily. The code was moved into a
   _bootstrap_external.py, which is a "frozen" Python module, i.e a
   module generated into a .h file at compile time using the
   _freeze_importlib program.

 - Due to the above, we now need to regenerate importlib.h at build
   time. Unfortunately, for the target Python _freeze_importlib is
   built for the target, so we can't run it on the build machine. To
   fix this, we copy the _freeze_importlib program from the
   host-python in $(HOST_DIR), and then patch the target python to use
   it. Since the same solution can be used for 'pgen', we do it, and
   avoid having to touch the graminit.{c,h} files.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-05-17 22:46:17 +02:00

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################################################################################
#
# python3
#
################################################################################
PYTHON3_VERSION_MAJOR = 3.5
PYTHON3_VERSION = $(PYTHON3_VERSION_MAJOR).1
PYTHON3_SOURCE = Python-$(PYTHON3_VERSION).tar.xz
PYTHON3_SITE = http://python.org/ftp/python/$(PYTHON3_VERSION)
PYTHON3_LICENSE = Python software foundation license v2, others
PYTHON3_LICENSE_FILES = LICENSE
# Python itself doesn't use libtool, but it includes the source code
# of libffi, which uses libtool. Unfortunately, it uses a beta version
# of libtool for which we don't have a matching patch. However, this
# is not a problem, because we don't use the libffi copy included in
# the Python sources, but instead use an external libffi library.
PYTHON3_LIBTOOL_PATCH = NO
# Python needs itself and a "pgen" program to build itself, both being
# provided in the Python sources. So in order to cross-compile Python,
# we need to build a host Python first. This host Python is also
# installed in $(HOST_DIR), as it is needed when cross-compiling
# third-party Python modules.
HOST_PYTHON3_CONF_OPTS += \
--without-ensurepip \
--without-cxx-main \
--disable-sqlite3 \
--disable-tk \
--with-expat=system \
--disable-curses \
--disable-codecs-cjk \
--disable-nis \
--enable-unicodedata \
--disable-test-modules \
--disable-idle3 \
--disable-ossaudiodev
# Make sure that LD_LIBRARY_PATH overrides -rpath.
# This is needed because libpython may be installed at the same time that
# python is called.
HOST_PYTHON3_CONF_ENV += \
LDFLAGS="$(HOST_LDFLAGS) -Wl,--enable-new-dtags"
PYTHON3_DEPENDENCIES = host-python3 libffi
HOST_PYTHON3_DEPENDENCIES = host-expat host-zlib
PYTHON3_INSTALL_STAGING = YES
ifeq ($(BR2_PACKAGE_PYTHON3_READLINE),y)
PYTHON3_DEPENDENCIES += readline
endif
ifeq ($(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 ($(BR2_PACKAGE_PYTHON3_PYC_ONLY),y)
PYTHON3_CONF_OPTS += --enable-old-stdlib-cache
endif
ifeq ($(BR2_PACKAGE_PYTHON3_PY_ONLY),y)
PYTHON3_CONF_OPTS += --disable-pyc-build
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
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
ifeq ($(BR2_PACKAGE_PYTHON3_BZIP2),y)
PYTHON3_DEPENDENCIES += bzip2
endif
ifeq ($(BR2_PACKAGE_PYTHON3_ZLIB),y)
PYTHON3_DEPENDENCIES += zlib
endif
ifeq ($(BR2_PACKAGE_PYTHON3_OSSAUDIODEV),y)
PYTHON3_CONF_OPTS += --enable-ossaudiodev
else
PYTHON3_CONF_OPTS += --disable-ossaudiodev
endif
PYTHON3_CONF_ENV += \
ac_cv_have_long_long_format=yes \
ac_cv_file__dev_ptmx=yes \
ac_cv_file__dev_ptc=yes \
ac_cv_working_tzset=yes
# uClibc is known to have a broken wcsftime() implementation, so tell
# Python 3 to fall back to strftime() instead.
ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
PYTHON3_CONF_ENV += ac_cv_func_wcsftime=no
endif
PYTHON3_CONF_OPTS += \
--without-ensurepip \
--without-cxx-main \
--with-system-ffi \
--disable-pydoc \
--disable-test-modules \
--disable-lib2to3 \
--disable-tk \
--disable-nis \
--disable-idle3
# Python builds two tools to generate code: 'pgen' and
# '_freeze_importlib'. Unfortunately, for the target Python, they are
# built for the target, while we need to run them at build time. So
# when installing host-python, we copy them to
# $(HOST_DIR)/usr/bin. And then, when building the target python
# package, we tell the configure script where they are located.
define HOST_PYTHON3_INSTALL_TOOLS
cp $(@D)/Parser/pgen $(HOST_DIR)/usr/bin/python-pgen
cp $(@D)/Programs/_freeze_importlib $(HOST_DIR)/usr/bin/python-freeze-importlib
endef
HOST_PYTHON3_POST_INSTALL_HOOKS += HOST_PYTHON3_INSTALL_TOOLS
PYTHON3_CONF_ENV += \
PGEN_FOR_BUILD=$(HOST_DIR)/usr/bin/python-pgen \
FREEZE_IMPORTLIB_FOR_BUILD=$(HOST_DIR)/usr/bin/python-freeze-importlib
#
# 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 $(TARGET_DIR)/usr/bin/python$(PYTHON3_VERSION_MAJOR)m-config
rm -f $(TARGET_DIR)/usr/bin/python3-config
rm -f $(TARGET_DIR)/usr/bin/smtpd.py.3
for i in `find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/config-$(PYTHON3_VERSION_MAJOR)m/ \
-type f -not -name pyconfig.h -a -not -name Makefile` ; do \
rm -f $$i ; \
done
rm -rf $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/__pycache__/
rm -rf $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/lib-dynload/sysconfigdata/__pycache__
rm -rf $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/collections/__pycache__
rm -rf $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/importlib/__pycache__
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
define PYTHON3_INSTALL_SYMLINK
ln -fs python3 $(TARGET_DIR)/usr/bin/python
endef
ifneq ($(BR2_PACKAGE_PYTHON),y)
PYTHON3_POST_INSTALL_TARGET_HOOKS += PYTHON3_INSTALL_SYMLINK
endif
# Some packages may have build scripts requiring python3, whatever is the
# python version chosen for the target.
# Only install the python symlink in the host tree if python3 is enabled
# for the target.
ifeq ($(BR2_PACKAGE_PYTHON3),y)
define HOST_PYTHON3_INSTALL_SYMLINK
ln -fs python3 $(HOST_DIR)/usr/bin/python
ln -fs python3-config $(HOST_DIR)/usr/bin/python-config
endef
HOST_PYTHON3_POST_INSTALL_HOOKS += HOST_PYTHON3_INSTALL_SYMLINK
endif
# Provided to other packages
PYTHON3_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/sysconfigdata/:$(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages/
$(eval $(autotools-package))
$(eval $(host-autotools-package))
ifeq ($(BR2_PACKAGE_PYTHON3_PYC_ONLY),y)
define PYTHON3_REMOVE_PY_FILES
find $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR) -name '*.py' -print0 | xargs -0 rm -f
endef
TARGET_FINALIZE_HOOKS += PYTHON3_REMOVE_PY_FILES
endif
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 rm -f
endef
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.
ifeq ($(BR2_PACKAGE_PYTHON3),y)
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 rm -f
endef
TARGET_FINALIZE_HOOKS += PYTHON3_REMOVE_OPTIMIZED_PYC_FILES
endif
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