[Scons-dev] SCons 4.3.0 released

[Bill Deegan]

A new SCons release, 4.3.0, is now available
on the SCons download page:

      https://scons.org/pages/download.html


NOTE: 4.3.0 now requires Python 3.6.0 and above. Python 3.5.x is no longer
supported

Here is a summary of the changes since 4.2.0:

NEW FUNCTIONALITY
-----------------

- Ninja - Added ninja API 'NINJA_FORCE_SCONS_BUILD' to force a node to
callback to scons.
- Add support for Visual Studio 2022.

DEPRECATED FUNCTIONALITY
------------------------

- The qt tool, which targets Qt version 3, is deprecated. Qt3 has been
unsupported by
  upstream for many years.  Qt4 and Qt5 tools are available from
scons-contrib.

CHANGED/ENHANCED EXISTING FUNCTIONALITY
---------------------------------------

- Ninja - Expanded ninja Mkdir to also support Mkdir actions.
- Further PCH updates. It's now recommended that env['PCH'] should always
be a File node.
  Either via return value from env.PCH() or by explicitly using
File('StdAfx.pch').
- Change SCons.Platform.win32.get_architecture() to return
platform.platform() when run in an
  environment where neither: PROCESSOR_ARCHITEW6432 nor
PROCESSOR_ARCHITECTURE is set.
  This should fix platform tests which started failing when
HOST_OS/HOST_ARCH changes
  introduced by Aaron Franke (listed below) were merged.
- The Java tool now accepts more versions (up to 17.0), and is better
  able to detect the many builds of OpenJDK available since it became
  designated the reference Java implementation.

FIXES
-----

- Fix reproducible builds. Restore logic respecting SOURCE_DATE_EPOCH when
set.
- Small fix to ensure CLVar default value is an empty list.
  See MongoDB bug report: https://jira.mongodb.org/browse/SERVER-59656
  Code contributed by MongoDB.
- Ninja - Fix ninja tool to never use for_sig substitution because ninja
does not use signatures. This
  issue affected CommandGeneratorAction function actions specifically.
- Fix PCH not being evaluated by subst() where necessary.
- Fix issue #4021.  Change the way subst() is used in Textfile() to not
evaluate '$$(' -> '$',
  but instead it should yield '$('.
- Ninja - Fix command line escaping for ninja dollar sign escape. Without
escaping ninja properly,
- Fix MSVS tests (vs-N.N-exec.py) for MSVS 6.0, 7.0, and 7.1 (import
missing module).
- Fix command line escaping for ninja dollar sign escape. Without escaping
ninja properly,
  the ninja file scons regenerate and callback invocations will lose the $
characters used in
  the scons command line which ninja uses itself for escaping. For Example:
      scons BUILD=xyz OTHERVAR=$BUILD
  Prior to this fix, it would cause ninja to fail to escape the dollar
sign, leading to the
  single dollar sign being used as a ninja escape character in the ninja
file.
- Ninja - Fixed an issue where if you control-c and/or killed ninja while
it was running scons to regenerate
  build.ninja you would end up with no build.ninja file and have to rerun
scons from scratch.
  Code contributed by MongoDB.

DEVELOPMENT
-----------

- Added --no-ignore-skips to runtest.py. Changed default to ignore skips
when setting
  runtest.py's exit status. Previously would exit 2 if any tests were
skipped.
  Now will only exit 2 if user specifies --no-ignore-skips and some tests
were skipped.

Thanks to the following contributors listed below for their contributions
to this release.
==========================================================================================
.. code-block:: text

    git shortlog --no-merges -ns 4.2.0..HEAD
    47  Mats Wichmann
    46  William Deegan
    14  Jacob Cassagnol
    11  Daniel Moody
     8  Ryan Egesdahl
     5  Joseph Brill
     4  Omar Polo
     2  Brian Quistorff
     1  Aaron Franke
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