package/python3/0005-Add-infrastructure-to-disable-the-build-of-certain-e.patch

   1 From 3a9f4aa255909ed152883eee787313efd20dbc58 Mon Sep 17 00:00:00 2001
   2 From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   3 Date: Wed, 23 Dec 2015 11:31:08 +0100
   4 Subject: [PATCH] Add infrastructure to disable the build of certain extensions
   5
   6 Some of the extensions part of the Python core have dependencies on
   7 external libraries (sqlite, tk, etc.) or are relatively big and not
   8 necessarly always useful (CJK codecs for example). By extensions, we
   9 mean part of Python modules that are written in C and therefore
  10 compiled to binary code.
  11
  12 Therefore, we introduce a small infrastructure that allows to disable
  13 some of those extensions. This can be done inside the configure.ac by
  14 adding values to the DISABLED_EXTENSIONS variable (which is a
  15 word-separated list of extensions).
  16
  17 The implementation works as follow :
  18
  19  * configure.ac defines a DISABLED_EXTENSIONS variable, which is
  20    substituted (so that when Makefile.pre is generated from
  21    Makefile.pre.in, the value of the variable is substituted). For
  22    now, this DISABLED_EXTENSIONS variable is empty, later patches will
  23    use it.
  24
  25  * Makefile.pre.in passes the DISABLED_EXTENSIONS value down to the
  26    variables passed in the environment when calling the setup.py
  27    script that actually builds and installs those extensions.
  28
  29  * setup.py is modified so that the existing "disabled_module_list" is
  30    filled with those pre-disabled extensions listed in
  31    DISABLED_EXTENSIONS.
  32
  33 Patch ported to python2.7 by Maxime Ripard <ripard@archos.com>, and
  34 then extended by Thomas Petazzoni
  35 <thomas.petazzoni@free-electrons.com>.
  36
  37 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  38 ---
  39  Makefile.pre.in | 6 +++++-
  40  configure.ac    | 2 ++
  41  setup.py        | 5 ++++-
  42  3 files changed, 11 insertions(+), 2 deletions(-)
  43
  44 diff --git a/Makefile.pre.in b/Makefile.pre.in
  45 index 272f312..9420860 100644
  46 --- a/Makefile.pre.in
  47 +++ b/Makefile.pre.in
  48 @@ -182,6 +182,8 @@ FILEMODE=   644
  49  # configure script arguments
  50  CONFIG_ARGS=   @CONFIG_ARGS@
  51
  52 +# disabled extensions
  53 +DISABLED_EXTENSIONS=   @DISABLED_EXTENSIONS@
  54
  55  # Subdirectories with code
  56  SRCDIRS=       @SRCDIRS@
  57 @@ -600,6 +602,7 @@ sharedmods: $(BUILDPYTHON) pybuilddir.txt
  58         esac; \
  59         $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
  60                 _TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
  61 +               DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
  62                 $(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
  63
  64  # Build static library
  65 @@ -1425,7 +1428,8 @@ libainstall:      all python-config
  66  # Install the dynamically loadable modules
  67  # This goes into $(exec_prefix)
  68  sharedinstall: sharedmods
  69 -       $(RUNSHARED) $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
  70 +       $(RUNSHARED) DISABLED_EXTENSIONS="$(DISABLED_EXTENSIONS)" \
  71 +               $(PYTHON_FOR_BUILD) $(srcdir)/setup.py install \
  72                 --prefix=$(prefix) \
  73                 --install-scripts=$(BINDIR) \
  74                 --install-platlib=$(DESTSHARED) \
  75 diff --git a/configure.ac b/configure.ac
  76 index c492594..bfb599e 100644
  77 --- a/configure.ac
  78 +++ b/configure.ac
  79 @@ -2588,6 +2588,8 @@ LIBS="$withval $LIBS"
  80
  81  PKG_PROG_PKG_CONFIG
  82
  83 +AC_SUBST(DISABLED_EXTENSIONS)
  84 +
  85  # Check for use of the system expat library
  86  AC_MSG_CHECKING(for --with-system-expat)
  87  AC_ARG_WITH(system_expat,
  88 diff --git a/setup.py b/setup.py
  89 index dbd2a3c..1ebfa50 100644
  90 --- a/setup.py
  91 +++ b/setup.py
  92 @@ -44,7 +44,10 @@ host_platform = get_platform()
  93  COMPILED_WITH_PYDEBUG = ('--with-pydebug' in sysconfig.get_config_var("CONFIG_ARGS"))
  94
  95  # This global variable is used to hold the list of modules to be disabled.
  96 -disabled_module_list = []
  97 +try:
  98 +    disabled_module_list = sysconfig.get_config_var("DISABLED_EXTENSIONS").split(" ")
  99 +except KeyError:
 100 +    disabled_module_list = list()
 101
 102  def add_dir_to_list(dirlist, dir):
 103      """Add the directory 'dir' to the list 'dirlist' (after any relative
 104 --
 105 2.6.4
 106