kumquat-buildroot/package/python3/python3-012-disable-extensions.patch
Maxime Ripard f1c092da8b python3: Port python2 patches to reduce the interpreter size
Some of the python2 patches were left behind when doing the python3
package. This was because the python build system can now autodetect
what packages can be built in the system.

However, some of these patches are actually useful to reduce drastically
the size of the interpreter.

This patch ports the relevant patches to the python3 package, and adds a
new patch to remove the idle3 IDE as well from the interpreter.

Fixes #5696

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-06-28 22:02:44 +02:00

99 lines
3.4 KiB
Diff

Add infrastructure to disable the build of certain extensions
Some of the extensions part of the Python core have dependencies on
external libraries (sqlite, tk, etc.) or are relatively big and not
necessarly always useful (CJK codecs for example). By extensions, we
mean part of Python modules that are written in C and therefore
compiled to binary code.
Therefore, we introduce a small infrastructure that allows to disable
some of those extensions. This can be done inside the configure.ac by
adding values to the DISABLED_EXTENSIONS variable (which is a
word-separated list of extensions).
The implementation works as follow :
* configure.ac defines a DISABLED_EXTENSIONS variable, which is
substituted (so that when Makefile.pre is generated from
Makefile.pre.in, the value of the variable is substituted). For
now, this DISABLED_EXTENSIONS variable is empty, later patches will
use it.
* Makefile.pre.in passes the DISABLED_EXTENSIONS value down to the
variables passed in the environment when calling the setup.py
script that actually builds and installs those extensions.
* setup.py is modified so that the existing "disabled_module_list" is
filled with those pre-disabled extensions listed in
DISABLED_EXTENSIONS.
Patch ported to python2.7 by Maxime Ripard <ripard@archos.com>, and
then extended by Thomas Petazzoni
<thomas.petazzoni@free-electrons.com>.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
Makefile.pre.in | 4 ++++
configure.ac | 2 ++
setup.py | 5 ++++-
3 files changed, 10 insertions(+), 1 deletion(-)
Index: cpython/Makefile.pre.in
===================================================================
--- cpython.orig/Makefile.pre.in
+++ cpython/Makefile.pre.in
@@ -155,6 +155,8 @@
# configure script arguments
CONFIG_ARGS= @CONFIG_ARGS@
+# disabled extensions
+DISABLED_EXTENSIONS= @DISABLED_EXTENSIONS@
# Subdirectories with code
SRCDIRS= @SRCDIRS@
@@ -478,6 +480,7 @@
sharedmods: $(BUILDPYTHON) pybuilddir.txt
$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
CONFIG_ARGS="$(CONFIG_ARGS)" \
+ DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
$(PYTHON_FOR_BUILD) $(srcdir)/setup.py build
# Build static library
@@ -1185,6 +1188,7 @@
# This goes into $(exec_prefix)
sharedinstall: sharedmods
$(RUNSHARED) CONFIG_ARGS="$(CONFIG_ARGS)" \
+ DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
$(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
--prefix=$(prefix) \
--install-scripts=$(BINDIR) \
Index: cpython/configure.ac
===================================================================
--- cpython.orig/configure.ac
+++ cpython/configure.ac
@@ -2175,6 +2175,8 @@
AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+AC_SUBST(DISABLED_EXTENSIONS)
+
# Check for use of the system expat library
AC_MSG_CHECKING(for --with-system-expat)
AC_ARG_WITH(system_expat,
Index: cpython/setup.py
===================================================================
--- cpython.orig/setup.py
+++ cpython/setup.py
@@ -34,7 +34,10 @@
sysconfig._CONFIG_VARS.update(os.environ)
# This global variable is used to hold the list of modules to be disabled.
-disabled_module_list = []
+try:
+ disabled_module_list = sysconfig.get_config_var("DISABLED_EXTENSIONS").split(" ")
+except KeyError:
+ disabled_module_list = list()
def add_dir_to_list(dirlist, dir):
"""Add the directory 'dir' to the list 'dirlist' (after any relative