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NOTE: 4.3.0 now requires Python 3.6.0 and above. Python 3.5.x is no longer supported
Changelog:
- Default hash algorithm check updated for SCons FIPS compliance. Now checks for hash viability
first and then walks the tree to use the first viable hash as the default one. This typically
selects SHA1 on FIPS-enabled systems less than Python 3.9 as the new default instead of MD5,
unless SHA1 has also been disabled by security policy, at which point SCons selects SHA256
as the default. For systems running Python 3.9 and later, the hashlib bug has been fixed,
and SCons will once again default to MD5 as the preferred algorithm.
- Fix MSVS tests (vs-N.N-exec.py) for MSVS 6.0, 7.0, and 7.1 (import missing module).
- Add support for Visual Studio 2022.
- Fix reproducible builds. Restore logic respecting SOURCE_DATE_EPOCH when set.
- Fix version tests to work with updated scons --version output. (Date format changed)
- Fix issue #4021. Change the way subst() is used in Textfile() to not evaluate '$$(' -> '$',
but instead it should yield '$('.
- 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.
- 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').
- 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.
- 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 - 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.
- Define HOST_OS and HOST_ARCH in the environment for all platforms.
Before this change, these were only defined for Win32 and OS/2.
- Fix ninja tool to never use for_sig substitution because ninja does not use signatures. This
issue affected CommandGeneratorAction function actions specifically.
- Expanded ninja Mkdir to also support Mkdir actions.
- Added support for the PCH environment variable to support subst generators.
- 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.
- Added ninja API 'NINJA_FORCE_SCONS_BUILD' to force a node to callback to scons.
- Two small Python 3.10 fixes: one more docstring turned into raw
because it contained an escape; updated "helpful" syntax error message
from 3.10 was not expected by SubstTests.py and test/Subst/Syntax.py
- EmitterProxy rich comparison set is completed (checker warning).
Added __le__, __gt__, __ge__.
- Fix gcc/g++ tool failing if "gcc --version" returns text which fails
to_String conversion (i.e., not UTF-8) - failure happens when tool
initialization checks version. For gcc, the initial version string is
not translated, for the rest, don't convert, just consume raw and discard.
- Maintenance and doc: modernize some usage in Scanner package,
calling super(), switching some imitialization to comprehensions,
and code formatting. Docstring for scanner Base moved from
init-method to class-level so it's picked up by Sphinx.
Added new sconsign filenames to skip_entry_list in Scanner/Dir.py
- Change SCons.Scanner.Base to ScannerBase. Old name kept as an alias
but is now unused in SCons itself.
- Call Variables option converter consistently - the converter should
have access to the env if it needs to (issue #2064).
- Fixed the variables Add() method to accept a tuple for the variable
name the same way AddVariables() does (issue #3869).
- The premade validator PathIsDirCreate for for PathVariable now catches
the case where the directory could not be created due to permission
problems, allowing a more helpful error to be emitted (issue #2828)
- Maintenance: Python thread.setDaemon is deprecated in favor of
directly updating daemon attribute - update SCons to do this.
- Make sure when subst'ing a callable, the callable is called with
the correct for_signature value, previously it would be true even
if doing SUBST_RAW (issue #4037)
- Update Util/NodeList implementation to get rid of a workaround for
early Python 3 slicing issue that is no longer a problem.
- Rework some Java tests to skip rather than fail on CI systems, where
the working java is > v9, but a 1.8 or 9 was also found.
- Java updates: on Windows, detect more default JDK install locations.
On all platforms, more Java versions (up to 17.0 now). Add more information
on version selection to docs.
Update docs on JavaH tool in light of javah command dropped since 10.0.
Try to be better about preserving user's passed-in JAVA* construction vars.
- Start the deprecation of the qt tool, which refers to Qt3 (usupported
since around 2006). There's a deprecation warning added, initially
defaulting to disabled.
- Fix crash when scons is run from a python environement where a signal
is set from outside Python.
(From OE-Core rev: bd7b202e09dbf6749271ff57fed5296c2f8fed4a)
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Update patch as setup.cfg changes are now in upstream.
License-Update: Update Copyright years
NOTE: The 4.2.0 Release of SCons will deprecate Python 3.5 Support.
Python 3.5 support will be dropped in the next major release.
RELEASE 4.2.0 - Sat, 31 Jul 2021 18:12:46 -0700
From Byron Platt:
- Fix Install() issue when copytree recursion gives bad arguments
that can lead to install side-effects including keeping dangling
symlinks and silently failing to copy directories (and their
subdirectories) when the directory already exists in the target.
From Joseph Brill:
- Internal MSVS update: Remove unnecessary calls to find all
installed versions of msvc when constructing the installed visual
studios list.
From William Deegan:
- Improve Subst()'s logic to check for proper callable function or
class's argument list. It will now allow callables with expected
args, and any extra args as long as they have default arguments.
Additionally functions with no defaults for extra arguments as
long as they are set using functools.partial to create a new
callable which set them.
- Fix Issue #3035 - mingw with SHLIBVERSION set fails with either
not a dll error or "Multiple ways to build the same target were
specified for:". Now mingw will disable creating the symlinks
(and adding version string to ) dlls. It sets
SHLIBNOVERSIONSYMLINKS, IMPLIBNOVERSIONSYMLINKS and
LDMODULENOVERSIONSYMLINKS to True.
- Added --experimental flag, to enable various experimental
features/tools. You can specify 'all', 'none', or any combination
of available experimental features.
- Fix Issue #3933 - Remove unguarded print of debug information in
SharedLibrary logic when SHLIBVERSION is specified.
- Fix versioned shared library naming for MacOS platform.
(Previously was libxyz.dylib.1.2.3, has been fixed to
libxyz.1.2.3.dylib. Additionally the sonamed symlink had the same
issue, that is now resolved as well)
- Add experimental ninja builder. (Contributed by MongoDB, Daniel
Moody and many others).
- Fix #3955 - _LIBDIRFLAGS leaving $( and $) in *COMSTR output.
Added affect_signature flag to _concat function. If set to False,
it will prepend and append $( and $). That way the various
Environment variables can use that rather than
"$( _concat(...)$)".
- Fix issue with exparimental ninja tool which would fail on windows
or when ninja package wasn't installed but --experimental=ninja was
specified.
- As part of experimental ninja tool, allow SetOption() to set both
disable_execute_ninja and disable_ninja.
From David H:
- Fix Issue #3906 - `IMPLICIT_COMMAND_DEPENDENCIES` was not properly
disabled when set to any string value (For example ['none','false',
'no','off']) Also previously 'All' wouldn't have the desired affect.
From Ivan Kravets:
- Provide a custom argument escape function for `TempFileMunge`
using a new `TEMPFILEARGESCFUNC` variable. Useful if you need to
apply extra operations on a command argument before writing to a
temporary file (fix Windows slashes, normalize paths, etc.)
From Henrik Maier:
- DocbookXslt tool: The XSLT stylesheet file is now initialized to an
env.File() Node, such that dependencies work correctly in hierarchical
builds (eg when using DocbookXslt in SConscript('subdir/SConscript')
context.
From Daniel Moody:
- Update CacheDir to use uuid for tmpfile uniqueness instead of pid.
This fixes cases for shared cache where two systems write to the
same cache tmpfile at the same time because the happened to get the
same pid.
- Added support for passing custom CacheDir derived classes to
SCons. Moved copy_from_cache attribute from the Environment class to
CacheDir class. Code contributed by MongoDB.
- Update BuildTask to pass all targets to the progress object fixing
an issue where multi-target build nodes only got the first target
passed to the progress object.
- Fix a potential race condition in shared cache environments where
the permissions are not writeable for a moment after the file has
been renamed and other builds (users) will copy it out of the cache.
Small reorganization of logic to copy files from cachedir. Moved
CacheDir writeable permission code for copy to cache behind the atomic
rename operation.
- Added marking of intermediate and and multi target nodes generated
from SConf tests so that is_conftest() is more accurate.
- Added test for configure check failing to ensure it didn't break
generating and running ninja.
From Mats Wichmann:
- Initial support in tests for Python 3.10 - expected bytecode and
one changed expected exception message. Change some more regexes
to be specified as rawstrings in response to DeprecationWarnings.
- Add an example of adding an emitter to User Guide (concept from
Jeremy Elson)
- Add timing information for sconsign database dump when --debug=time
is selected. Also switch to generally using time.perf_counter,
which is the Python recommended way for timing short durations.
- Drop remaining definitions of dict-like has_key methods, since
Python 3 doesn't have a dictionary has_key (maintenance)
- Do not treat --site-dir=DIR and --no-site-dir as distinct options.
Allows a later instance to override an earlier one.
- Ignore empty cmdline arguments when computing targets (issue 2986)
- Remove long-deprecated construction variables PDFCOM, WIN32_INSERT_DEF,
WIN32DEFPREFIX, WIN32DEFSUFFIX, WIN32EXPPREFIX, WIN32EXPSUFFIX.
All have been replaced by other names since at least 1.0.
- Add a __iadd__ method to the CLVar class so that inplace adds
(+=) also work as expected (issue 2399)
- Remove local copy of CLVar in EnvironmentTests unittest file -
should be testing against the production version, and they
didn't really differ.
- Don't strip spaces in INSTALLSTR by using raw subst (issue 2018)
- Deprecate Python 3.5 as a supported version.
- CPPDEFINES now expands construction variable references (issue
2363)
- Restore behavior that Install()'d files are writable (issue 3927)
- Simplified Mkdir(), the internal mkdir_func no longer needs to
handle existing directories, it can now pass exist_ok=True to
os.makedirs().
- Avoid WhereIs exception if user set a tool name to empty (from
issue 1742)
- Maintenance: remove obsolete __getslice__ definitions (Py3 never
calls); add Node.fs.scandir to call new (Py3.5) os.scandir;
Node.fs.makedirs now passes the exist_ok flag; Cachedir creation
now uses this flag.
- Maintenance: remove unneeded imports and reorganize some. Fix
uses of warnings in some tools which instantiated the class but did
nothing with them, need to instead call SCons.Warnings.warn with the
warn class.
- Drop overridden changed_since_last_build method in Value class.
- Resync the SetOption implementation and the manpage, making sure
new options are available and adding a notes column for misc
information. SetOption equivalents to --hash-chunksize,
--implicit-deps-unchanged and --implicit-deps-changed are enabled.
- Add tests for SetOption failing on disallowed options and value
types.
- Maintenance: eliminate lots of checker complaints about Util.py.
- Maintenance: fix checker-spotted issues in Environment (apply_tools)
and EnvironmentTests (asserts comparing with self). For consistency,
env.Tool() now returns a tool object the same way Tool() has done.
- Change SConscript() missing SConscript behavior - if must_exist=False,
the warning is suppressed.
- Make sure TEMPFILEPREFIX can be set to an empty string (issue 3964)
From Dillan Mills:
- Add support for the
(TARGET,SOURCE,TARGETS,SOURCES,CHANGED_TARGETS,CHANGED_SOURCES}.relpath
property. This will provide a path relative to the top of the build
tree (where the SConstruct is located) Fixes #396
From Andrew Morrow:
- Fix issue #3790: Generators in CPPDEFINES now have access to
populated source and target lists
(From OE-Core rev: 37a0a8821838a15cc24e1fc84b632bebacb44fb0)
Signed-off-by: Tim Orling <timothy.t.orling@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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