Issue 15484: CROSS: use _PYTHON_PROJECT_BASE in distutils sysconfig

Same as sysconfig but now in distutils  _PYTHON_PROJECT_BASE has to be used in cross-build environment.

Also _PYTHON_PROJECT_BASE should be initialized to build directory by configure - low priority as other issue prevent python to be build and tested smoothly outside source tree.

> 2-CROSS-use-_PYTHON_PROJECT_BASE-in-distutils-sysconfig.patch

This looks ok to me, just factoring out some code and setting the project base. Even if distutils is frozen, I'll apply this one, based on Eric's comment in http://bugs.python.org/issue14330#msg164406

> 2-CROSS-set-_PYTHON_PROJECT_BASE-to-current-build-dir.patch

I'll use abs_builddir instead.

and adding the pybuilddir to PYTHONPATH, so that _sysconfigdata.py is found if it does exist.

$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)

New changeset b2e7c85399f5 by doko in branch '3.3':
- Issue #15484: Fix _PYTHON_PROJECT_BASE for srcdir != builddir builds;
http://hg.python.org/cpython/rev/b2e7c85399f5

New changeset 172fec65c882 by doko in branch 'default':
- Issue #15484: Fix _PYTHON_PROJECT_BASE for srcdir != builddir builds;
http://hg.python.org/cpython/rev/172fec65c882

Matthias Klose wrote:
> 2-CROSS-set-_PYTHON_PROJECT_BASE-to-current-build-dir.patch
> I'll use abs_builddir instead.
Yes after some fixes related to issue 15819 (msg173144) this is preferred.

Roumen

New changeset f0cde9b6830a by doko in branch '3.3':
- Follow-up for issue #15484: In PYTHON_FOR_BUILD, use $(PLATDIR) instead
http://hg.python.org/cpython/rev/f0cde9b6830a

New changeset 938a045cfe7d by doko in branch 'default':
- Follow-up for issue #15484: In PYTHON_FOR_BUILD, use $(PLATDIR) instead
http://hg.python.org/cpython/rev/938a045cfe7d

messages: + msg166736