Log message:
*: recursive bump for Python 3.11 as new default

Log message:
scons: limit to Python 2

All three of its users (nsis, mongodb3, gpick) already only accept Python 2.

Log message:
scons: Add precise CONFLICTS with pyNN-scons-3*

I had deleted PYTHON_SELF_CONFLICTS because it was overbroad,
resulting in py27-scons-3 incorrectly conflicting with py310-scons-4;
this incorrect conflicts caused incorrect failures during
pkg_rolling-replace and manual building.  However, there is still some
python 3 usage of scons-3, and various scons-3 does conflict.  This
commit adds a manual CONFLICTS line covering all python versions of
scons 3, and excluding other scons major versions.  I believe that now
the declared CONFLICTS are exactly correct, gaining the desired
efficiency while not breaking valid usage.

Thanks to wiz@ for off-list discussion about the subtleties.

Log message:
devel/scons: Stop self-conflicting

While this installs "scons", scons4 installs e.g. scons-310, so scons
3 (py27 only) and scons 4 (python 3 only) can coexist.

Log message:
scons: add upper bound to avoid pulling in scons4

Log message:
Mass-change BUILD_DEPENDS to TOOL_DEPENDS outside mk/.

Almost all uses, if not all of them, are wrong, according to the
semantics of BUILD_DEPENDS (packages built for target available for
use _by_ tools at build-time) and TOOL_DEPEPNDS (packages built for
host available for use _as_ tools at build-time).

No change to BUILD_DEPENDS as used correctly inside buildlink3.

As proposed on tech-pkg:
https://mail-index.netbsd.org/tech-pkg/2023/06/03/msg027632.html

Log message:
*: Revbump packages that use Python at runtime without a PKGNAME prefix

Log message:
py27-scons: fix PLIST

Log message:
egg.mk: remove --single-version-externally-managed

setuptools has this as default when --root is used (since version 0.6a11).

Log message:
fix typo