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>

1 files changed, 63 insertions, 0 deletions

diff --git a/package/python3/python3-006-reread-environment.patch b/package/python3/python3-006-reread-environment.patch
new file mode 100644
index 000000000..752b15a4e
--- /dev/null
+++ b/package/python3/python3-006-reread-environment.patch
@@ -0,0 +1,63 @@
+Make sure setup.py reads the correct CONFIG_ARGS
+
+The setup.py script that builds and installs all the Python modules
+shipped with the interpreter looks at the CONFIG_ARGS variable stored
+in the "sysconfig" module to look at the ./configure options and
+adjust its behaviour accordingly.
+
+Unfortunately, when cross-compiling, the value of CONFIG_ARGS returned
+by the sysconfig are the one passed to the ./configure script of the
+*host* Python and not the one we're currently building for the target.
+
+In order to avoid that, we re-initialize the values in the sysconfig
+module by re-reading the environment at the beginning of the setup.py
+script, and we make sure that the CONFIG_ARGS variable is actually
+part of the environment of setup.py.
+
+See the beginning of
+http://article.gmane.org/gmane.comp.python.devel/99772 for the
+inspiration.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+---
+ Makefile.pre.in |    4 +++-
+ setup.py        |    3 +++
+ 2 files changed, 6 insertions(+), 1 deletion(-)
+
+Index: Python-3.3.0/setup.py
+===================================================================
+--- Python-3.3.0.orig/setup.py
++++ Python-3.3.0/setup.py
+@@ -30,6 +30,9 @@
+ # Were we compiled --with-pydebug or with #define Py_DEBUG?
+ COMPILED_WITH_PYDEBUG = ('--with-pydebug' in sysconfig.get_config_var("CONFIG_ARGS"))
+ 
++sysconfig.get_config_vars()
++sysconfig._CONFIG_VARS.update(os.environ)
++
+ # This global variable is used to hold the list of modules to be disabled.
+ disabled_module_list = []
+ 
+Index: Python-3.3.0/Makefile.pre.in
+===================================================================
+--- Python-3.3.0.orig/Makefile.pre.in
++++ Python-3.3.0/Makefile.pre.in
+@@ -478,6 +478,7 @@
+ sharedmods: $(BUILDPYTHON) pybuilddir.txt
+ 	case $$MAKEFLAGS in *s*) quiet=-q; esac; \
+ 	$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
++		CONFIG_ARGS="$(CONFIG_ARGS)" \
+ 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
+ 
+ # Build static library
+@@ -1183,7 +1184,8 @@
+ # Install the dynamically loadable modules
+ # This goes into $(exec_prefix)
+ sharedinstall: sharedmods
+-	$(RUNSHARED) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
++	$(RUNSHARED) CONFIG_ARGS="$(CONFIG_ARGS)" \
++		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
+ 	   	--prefix=$(prefix) \
+ 		--install-scripts=$(BINDIR) \
+ 		--install-platlib=$(DESTSHARED) \