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A new SCons release, 4.6.0, is now available on the SCons download page: | ||
If you are reading this in the git repository, the contents | ||
refer to *unreleased* changes since the last SCons release. | ||
Past official release announcements appear at: | ||
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https://scons.org/tag/releases.html | ||
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================================================================== | ||
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A new SCons release, 4.6.1, is now available on the SCons download page: | ||
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https://scons.org/pages/download.html | ||
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Here is a summary of the changes since 4.5.2: | ||
Here is a summary of the changes since 4.6.0: | ||
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NEW FUNCTIONALITY | ||
----------------- | ||
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- D compilers : added support for generation of .di interface files. | ||
New variables DI_FILE_DIR, DI_FILE_DIR_PREFIX, DI_FILE_DIR_SUFFIX, | ||
DI_FILE_SUFFIX. | ||
- MSVC: If available, native arm64 tools will be used on arm64 hosts for VS2022. | ||
- MSVC: If necessary, automatically define VSCMD_SKIP_SENDTELEMETRY for VS2019 and later | ||
on arm64 hosts when using an arm (32-bit) build of python to prevent a powershell | ||
error pop-up window (powershell dll not found). | ||
- Add a LIBLITERALPREFIX variable which can be set to the linker's | ||
prefix for considering a library argument unmodified (e.g. for the | ||
GNU linker, the ':' in '-l:libfoo.a'). Fixes Github issue #3951. | ||
- List new features (presumably why a checkpoint is being released) | ||
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DEPRECATED FUNCTIONALITY | ||
------------------------ | ||
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- List anything that's been deprecated since the last release | ||
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CHANGED/ENHANCED EXISTING FUNCTIONALITY | ||
--------------------------------------- | ||
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- When debugging (--debug=pdb), the filenames SConstruct and SConscript | ||
are now recognized when manipulating breakpoints. Previously, | ||
only a full pathname to an sconscript file worked, as pdb requires | ||
a .py extension to open a file that is not an absolute path. | ||
- Three unused non-public methods of the Environment Base class | ||
were dropped: get_src_sig_type, get_tgt_sig_type, _changed_source. | ||
These were unused remnants of the previously removed SourceSignatures | ||
and TargetSignatures features (dropped in 3.1.2). | ||
- The --debug flag now has a 'json' option which will write information | ||
generated by --debug={count, memory, time, action-timestamps} and about | ||
the build. | ||
- Obsoleted YACCVCGFILESUFFIX, it's being replaced by YACC_GRAPH_FILE_SUFFIX. | ||
If YACC_GRAPH_FILE_SUFFIX is not set, it will respect YACCVCGFILESUFFIX. | ||
- The yacc tool now understands the bison behavior of --header, --defines | ||
and --graph being called without an option-argument as being synonyms | ||
for -d (first two) and -g. -H also recognized as a synonym for -d. | ||
Default value for $YACC_GRAPH_FILE_SUFFIX changed to '.gv' to match | ||
current bison default (since bison 3.8). Set this variable to '.dot' | ||
if using byacc. Fixes #4326 and #4327. | ||
- MSVC: When trying to find a valid msvc batch file, the existence of the msvc compiler | ||
executable is verified for VS6 to VS2015 to avoid executing the msvc batch file when | ||
the host/target tool is known not to be present. Always check that the msvc compiler | ||
executable is found on the msvc script environment path after running the msvc batch | ||
file. This is predominately needed for recent versions of Visual Studio where the msvc | ||
batch file exists but an individual msvc toolset may not support the host/target | ||
architecture combination. For example, when using VS2022 on arm64, the arm64 native | ||
tools are only installed for the 14.3x toolsets. | ||
- MSVC: When the msvc compiler executable is not found during setup of the msvc | ||
environment, the warning message issued takes into account whether or not a | ||
possibly erroneous compiler executable was already present in the scons environment | ||
path. See CHANGES.txt for details. | ||
- Extend range of recognized Java versions to 20. | ||
- Builder calls (like Program()) now accept pathlib objects in source lists. | ||
- The Help() function now takes an additional keyword argument keep_local: | ||
when starting to build a help message, you can now retain help from AddOption | ||
calls (options added for the project_, but omit help for SCons' own cmdline | ||
options with "Help(newtext, append=True, local_only=True)". | ||
- Calling SConscript() with a nonexistent file is now an error. | ||
Previously this succeeded - prior to SCons 3.0, silently; since 3.0, with | ||
a warning. Developers can still instruct such an SConscript() call not | ||
to fail by being explicit: pass keyword argument "must_exist=False". | ||
The "--warn=missing-sconscript" commandline option is no longer available | ||
as the warning was part of the transitional phase. | ||
- Add missing directories to searched paths for mingw installs | ||
- SCons.Util.types renamed to to SCons.Util.sctypes to avoid any possible | ||
confusion with the Python stdlib "types" module. Note that it was briefly | ||
(for 4.5.x only) possible to import directly from SCons.Util.types, | ||
although the preferred usage remains to import from SCons.Util only. | ||
Any code that did the direct import will have to change to import from | ||
SCons.Util.sctypes. | ||
- Add JDK 21 LTS support | ||
- The newly added --debug=sconscript option (new) will output notices when | ||
entering an exiting each SConscript as they are processed. | ||
- List modifications to existing features, where the previous behavior | ||
wouldn't actually be considered a bug | ||
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FIXES | ||
----- | ||
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- Fixed: when using the mingw tool, if an msys2 Python is used (os.sep | ||
is '/' rather than the Windows default '\'), certain Configure checks | ||
could fail due to the construction of the path to run the compiled check. | ||
- C scanner's dictifyCPPDEFINES routine did not understand the possible | ||
combinations of CPPDEFINES - not aware of a "name=value" string either | ||
embedded in a sequence, or by itself. The conditional C scanner thus | ||
did not always properly apply the defines. The regular C scanner does | ||
not use these, so was not affected. [fixes #4193] | ||
- MSVC: The installed msvc list is calculated once and cached. There was an indirect | ||
dependency on the target architecture when determining if each version of msvc | ||
was installed based on the initial invocation. It was possible that an msvc instance | ||
would not be considered installed due to the tools for the requested target | ||
architecture not being installed. The initial call to construct the installed msvc | ||
list now uses an undefined target architecture to evaluate all potential host/target | ||
combinations when evaluating if the msvc tools are installed for a given Visual Studio | ||
installation. | ||
- MSVC: Erroneous construction of the installed msvc list (as described above) caused an | ||
index error in the msvc support code. An explicit check was added to prevent indexing | ||
into an empty list. Fixes #4312. | ||
- MSVC: The search for the msvc compiler executable (cl.exe) no longer inspects the | ||
OS system path in certain situations when setting up the msvc environment. | ||
- MSCommon: Test SConfTests.py would fail when mscommon debugging was enabled via the | ||
MSVC_MSCOMMON_DEBUG environment variable. The mscommon logging filter class registered | ||
with the python logging module was refactored to prevent test failure. | ||
- MSVS: Add arm64 to the MSVS supported architectures list for VS2017 and later to be | ||
consistent with the current documentation of MSVS_ARCH. | ||
- FORTRAN: Fix gfortran tool initialization. Defaults to using binary named gfortran | ||
as would be expected, and properly set's SHFORTRAN flags to include -fPIC | ||
where previously it was only doing so for the other fortran versions (F77,..) | ||
- MSCommon: Added more error handling while reading msvc config cache. | ||
(Enabled/specified by SCONS_CACHE_MSVC_CONFIG). | ||
The existing cache will be discarded if there's a decode error reading it. | ||
It's possible there's a race condition creating this issue it in certain CI builds. | ||
- Fixed: race condition in `Mkdir` which can happen when two `SConscript` | ||
are processed simultaneously by two separate build commands. | ||
- List fixes of outright bugs | ||
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IMPROVEMENTS | ||
------------ | ||
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- Now tries to find mingw if it comes from Chocolatey install of msys2. | ||
- MSVC: Module imports were changed from a relative import to a top-level | ||
absolute import in the following Microsoft tools: midl, mslib, mslink, mssdk, msvc, | ||
msvs. Moving any of these tools that used relative imports to the scons site tools | ||
folder would fail on import (i.e., the relative import paths become invalid when | ||
moved). | ||
- List improvements that wouldn't be visible to the user in the | ||
documentation: performance improvements (describe the circumstances | ||
under which they would be observed), or major code cleanups | ||
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PACKAGING | ||
--------- | ||
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- The build of scons now matches the help text displayed - the targets | ||
listed there can all now be given as a target to build (except for | ||
the two full source balls; the source tar.gz is currently generated directly | ||
by the GitHub release process). | ||
- List changes in the way SCons is packaged and/or released | ||
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DOCUMENTATION | ||
------------- | ||
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- Aligned manpage signature for Alias function to match implementation - | ||
if the previous *targets* parameter had been used as a keyword argument, | ||
the results would be incorrect (does not apply to positional argument | ||
usage, which had no problem). | ||
- Changed the message about scons -H to clarify it shows built-in options only. | ||
- Cachedir description updated. | ||
- Updated the first two chapters on building with SCons in the User Guide. | ||
- Clarify that exported variables are shared - if mutable, changes made in | ||
an SConscript are visible everywhere that takes a refereence to that object. | ||
- Update PCH builder docs with some usage notes. | ||
- List any significant changes to the documentation (not individual | ||
typo fixes, even if they're mentioned in src/CHANGES.txt to give | ||
the contributor credit) | ||
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DEVELOPMENT | ||
----------- | ||
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- SCons test runner now uses pathlib to normalize and compare paths | ||
to test files, which allows test lists, exclude lists, and tests on | ||
the command line to "not care" about the OS convention for pathname | ||
separators. | ||
- Class ActionBase is now an abstract base class to more accurately | ||
reflect its usage. Derived _ActionAction inherits the ABC, so it | ||
now declares (actually raises NotImplementedError) two methods it | ||
doesn't use so it can be instantiated by unittests and others. | ||
- Added more type annotations to internal routines. | ||
- Cleaned up dblite module (checker warnings, etc.). | ||
- TeX tests: skip tests that use makeindex or epstopdf not installed, or | ||
if `kpsewhich glossaries.sty` fails. | ||
- List visible changes in the way SCons is developed | ||
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Thanks to the following contributors listed below for their contributions to this release. | ||
========================================================================================== | ||
.. code-block:: text | ||
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git shortlog --no-merges -ns 4.5.2..HEAD | ||
97 Mats Wichmann | ||
39 William Deegan | ||
20 Joseph Brill | ||
12 Alex Burton | ||
4 StenGruener | ||
2 Jonathon Reinhart | ||
2 LiuYinCarl | ||
2 Max Bachmann | ||
1 Kenshin | ||
1 Shohei YOSHIDA | ||
1 Vitaly Cheptsov | ||
git shortlog --no-merges -ns 4.0.1..HEAD |
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__version__="4.6.0" | ||
__version__="4.6.1" | ||
__copyright__="Copyright (c) 2001 - 2023 The SCons Foundation" | ||
__developer__="bdbaddog" | ||
__date__="Sun, 19 Nov 2023 17:22:20 -0700" | ||
__date__="Sun, 19 Nov 2023 17:54:10 -0700" | ||
__buildsys__="M1Dog2021" | ||
__revision__="e5eef322a4a727b96358a436dca46e8085ac8692" | ||
__build__="e5eef322a4a727b96358a436dca46e8085ac8692" | ||
__revision__="70bcde6f38478a85a552ee624baaa2beb7b2bb92" | ||
__build__="70bcde6f38478a85a552ee624baaa2beb7b2bb92" | ||
# make sure compatibility is always in place | ||
import SCons.compat # noqa |
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