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kumquat-buildroot/package/python3/python3.mk
Thomas Petazzoni bdddc0195e python3: make readline, gzip, bzip2 and xz really optional 
The BR2_PACKAGE_PYTHON3_{READLINE,ZLIB,BZIP2,XZ} options were so far
only bringing in the necessary dependencies, relying on the Python
build system to automatically detect them.

However, this means that even if one of those option was disabled, if
their dependency was found, Python would build the corresponding module,
which is really not what the user would expect.

For example, if you have:

  BR2_PACKAGE_READLINE=y
  # BR2_PACKAGE_PYTHON3_READLINE is not set

Then you would still get the readline Python module built and installed.

This commit fixes that by adding new --{enable,disable} options, and use
them in python3.mk.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-03-09 22:35:43 +01:00

277 lines
8.5 KiB
Makefile
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################################################################################
#
# python3
#
################################################################################
PYTHON3_VERSION_MAJOR = 3.5
PYTHON3_VERSION = $(PYTHON3_VERSION_MAJOR).2
PYTHON3_SOURCE = Python-$(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 $(HOST_DIR), as it is needed when cross-compiling
# third-party Python modules.
HOST_PYTHON3_CONF_OPTS += \
--without-ensurepip \
--without-cxx-main \
--disable-sqlite3 \
--disable-tk \
--with-expat=system \
--disable-curses \
--disable-codecs-cjk \
--disable-nis \
--enable-unicodedata \
--disable-test-modules \
--disable-idle3 \
--disable-ossaudiodev \
--disable-openssl
# Make sure that LD_LIBRARY_PATH overrides -rpath.
# This is needed because libpython may be installed at the same time that
# python is called.
# Make python believe we don't have 'hg', so that it doesn't try to
# communicate over the network during the build.
HOST_PYTHON3_CONF_ENV += \
LDFLAGS="$(HOST_LDFLAGS) -Wl,--enable-new-dtags" \
ac_cv_prog_HAS_HG=/bin/false
PYTHON3_DEPENDENCIES = host-python3 libffi
HOST_PYTHON3_DEPENDENCIES = host-expat host-zlib
PYTHON3_INSTALL_STAGING = YES
ifeq ($(BR2_PACKAGE_PYTHON3_READLINE),y)
PYTHON3_DEPENDENCIES += readline
else
PYTHON3_CONF_OPTS += --disable-readline
endif
ifeq ($(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 ($(BR2_PACKAGE_PYTHON3_PYC_ONLY),y)
PYTHON3_CONF_OPTS += --enable-old-stdlib-cache
endif
ifeq ($(BR2_PACKAGE_PYTHON3_SQLITE),y)
PYTHON3_DEPENDENCIES += sqlite
else
PYTHON3_CONF_OPTS += --disable-sqlite3
endif
ifeq ($(BR2_PACKAGE_PYTHON3_SSL),y)
PYTHON3_DEPENDENCIES += openssl
else
PYTHON3_CONF_OPTS += --disable-openssl
endif
ifneq ($(BR2_PACKAGE_PYTHON3_CODECSCJK),y)
PYTHON3_CONF_OPTS += --disable-codecs-cjk
endif
ifneq ($(BR2_PACKAGE_PYTHON3_UNICODEDATA),y)
PYTHON3_CONF_OPTS += --disable-unicodedata
endif
ifeq ($(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 ($(BR2_PACKAGE_PYTHON3_OSSAUDIODEV),y)
PYTHON3_CONF_OPTS += --enable-ossaudiodev
else
PYTHON3_CONF_OPTS += --disable-ossaudiodev
endif
# Make python believe we don't have 'hg', so that it doesn't try to
# communicate over the network during the build.
PYTHON3_CONF_ENV += \
ac_cv_have_long_long_format=yes \
ac_cv_file__dev_ptmx=yes \
ac_cv_file__dev_ptc=yes \
ac_cv_working_tzset=yes \
ac_cv_prog_HAS_HG=/bin/false
# GCC is always compliant with IEEE754
ifeq ($(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
PYTHON3_CONF_OPTS += \
--without-ensurepip \
--without-cxx-main \
--with-system-ffi \
--disable-pydoc \
--disable-test-modules \
--disable-lib2to3 \
--disable-tk \
--disable-nis \
--disable-idle3 \
--disable-pyc-build
# 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 $(host-autotools-package))
define PYTHON3_CREATE_PYC_FILES
PYTHONPATH="$(PYTHON3_PATH)" \
$(HOST_DIR)/usr/bin/python$(PYTHON3_VERSION_MAJOR) \
support/scripts/pycompile.py \
$(TARGET_DIR)/usr/lib/python$(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' -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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