On Tue, Sep 12, 2023 at 11:38:04AM +0100, Andrew Cooper wrote:
> On 11/09/2023 5:51 pm, Javi Merino wrote:
> > From: Marek Marczykowski-Górecki <marma...@invisiblethingslab.com>
> >
> > Python distutils is deprecated and is going to be removed in Python
> > 3.12. The distutils.sysconfig is available as sysconfig module in
> > stdlib since Python 3.2, so use that directly.
> >
> > Signed-off-by: Marek Marczykowski-Górecki <marma...@invisiblethingslab.com>
> 
> This breaks Py2, doesn't it?

I was thinking that too, but "sysconfig" module seems to be in Python
2.7 too.

> > ---
> >  m4/python_devel.m4       | 28 ++++++++++++++--------------
> >  tools/libs/stat/Makefile |  4 ++--
> >  2 files changed, 16 insertions(+), 16 deletions(-)
> >
> > diff --git a/m4/python_devel.m4 b/m4/python_devel.m4
> > index bbf1e0354b..bb60857b03 100644
> > --- a/m4/python_devel.m4
> > +++ b/m4/python_devel.m4
> > @@ -5,21 +5,21 @@ ac_previous_libs=$LIBS
> >  AC_PATH_PROG([pyconfig], [$PYTHON-config], [no])
> >  AS_IF([test x"$pyconfig" = x"no"], [
> >      dnl For those that don't have python-config
> > -    CPPFLAGS="$CFLAGS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print("-I" + distutils.sysconfig.get_config_var("INCLUDEPY"))'`"
> > -    CPPFLAGS="$CPPFLAGS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print(distutils.sysconfig.get_config_var("CFLAGS"))'`"
> > -    LDFLAGS="$LDFLAGS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print("-L" + distutils.sysconfig.get_python_lib(plat_specific=1,\
> > +    CPPFLAGS="$CFLAGS `$PYTHON -c 'import sysconfig; \
> > +        print("-I" + sysconfig.get_config_var("INCLUDEPY"))'`"
> > +    CPPFLAGS="$CPPFLAGS `$PYTHON -c 'import sysconfig; \
> > +        print(sysconfig.get_config_var("CFLAGS"))'`"
> > +    LDFLAGS="$LDFLAGS `$PYTHON -c 'import sysconfig; \
> > +        print("-L" + sysconfig.get_python_lib(plat_specific=1,\
> >          standard_lib=1) + "/config")'`"
> > -    LDFLAGS="$LDFLAGS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print(distutils.sysconfig.get_config_var("LINKFORSHARED"))'`"
> > -    LDFLAGS="$LDFLAGS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print(distutils.sysconfig.get_config_var("LDFLAGS"))'`"
> > -    LIBS="$LIBS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print(distutils.sysconfig.get_config_var("LIBS"))'`"
> > -    LIBS="$LIBS `$PYTHON -c 'import distutils.sysconfig; \
> > -        print(distutils.sysconfig.get_config_var("SYSLIBS"))'`"
> > +    LDFLAGS="$LDFLAGS `$PYTHON -c 'import sysconfig; \
> > +        print(sysconfig.get_config_var("LINKFORSHARED"))'`"
> > +    LDFLAGS="$LDFLAGS `$PYTHON -c 'import sysconfig; \
> > +        print(sysconfig.get_config_var("LDFLAGS"))'`"
> > +    LIBS="$LIBS `$PYTHON -c 'import sysconfig; \
> > +        print(sysconfig.get_config_var("LIBS"))'`"
> > +    LIBS="$LIBS `$PYTHON -c 'import sysconfig; \
> > +        print(sysconfig.get_config_var("SYSLIBS"))'`"
> 
> I know the code was terrible to start with, but it's absurd to fork
> multiple processes just to append different fields into the same variable.
> 
> Why not have a config.py in this directory which takes
> CPPFLAGS/LDFLAGS/LIBS as an input prints everything it needs.  Then you
> can repeat the import trick to prefer sysconfig and fall back to
> distutils if sysconfig isn't available.
> 
> ~Andrew

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab

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