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[packages/trusty/cirros-testvm.git] / cirros-testvm / src-cirros / buildroot-2015.05 / package / python3 / 007-disable-extensions.patch

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/package/python3/007-disable-extensions.patch b/cirros-testvm/src-cirros/buildroot-2015.05/package/python3/007-disable-extensions.patch
new file mode 100644 (file)
index 0000000..ce931f7
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/package/python3/007-disable-extensions.patch
@@ -0,0 +1,100 @@
+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: b/Makefile.pre.in
+===================================================================
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -180,6 +180,8 @@
+ # configure script arguments
+ CONFIG_ARGS=  @CONFIG_ARGS@
+ 
++# disabled extensions
++DISABLED_EXTENSIONS=  @DISABLED_EXTENSIONS@
+ 
+ # Subdirectories with code
+ SRCDIRS=      @SRCDIRS@
+@@ -577,6 +579,7 @@
+       esac; \
+       $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
+               _TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
++              DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
+               $(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
+ 
+ # Build static library
+@@ -1387,7 +1390,8 @@
+ # Install the dynamically loadable modules
+ # This goes into $(exec_prefix)
+ sharedinstall: sharedmods
+-      $(RUNSHARED) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
++      $(RUNSHARED) DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
++              $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
+               --prefix=$(prefix) \
+               --install-scripts=$(BINDIR) \
+               --install-platlib=$(DESTSHARED) \
+Index: b/configure.ac
+===================================================================
+--- a/configure.ac
++++ b/configure.ac
+@@ -2369,6 +2369,8 @@
+ 
+ PKG_PROG_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: b/setup.py
+===================================================================
+--- a/setup.py
++++ b/setup.py
+@@ -39,7 +39,10 @@
+ COMPILED_WITH_PYDEBUG = ('--with-pydebug' in sysconfig.get_config_var("CONFIG_ARGS"))
+ 
+ # 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