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A new SCons release, 4.9.0, 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 4.8.1: | ||
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NOTE: Since SCons 4.9.0, Python 3.7.0 or above is required. | ||
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CHANGED/ENHANCED EXISTING FUNCTIONALITY | ||
--------------------------------------- | ||
- Expose the `extra_libs` keyword argument in `CheckLibWithHeader` and 'CheckLib' | ||
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- Removed Python 3.6 support. | ||
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- Override environments, created when giving construction environment | ||
keyword arguments to Builder calls (or manually, through the | ||
undocumented Override method), were modified not to "leak" on item deletion. | ||
The item will now not be deleted from the base environment. | ||
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- Added support for tracking beamer themes in the LaTeX scanner. | ||
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- MSVS: msvs project files are always generated before the corresponding | ||
msvs solution files. This changes the behavior of clean for a project | ||
generated with auto_build_solution disabled and explicit solution | ||
generation: when the solution files are cleaned, the project files are | ||
also cleaned. The tests for vs 6.0-7.1 were updated accordingly. | ||
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- MSVS: Add an optional keyword argument, auto_filter_projects, to | ||
MSVSSolution. Accepted values for auto_filter_projects are: | ||
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- None [default]: raise an exception when solution file names or nodes | ||
are detected in the projects argument list. | ||
- True or evaluates True: automatically remove solution file names and | ||
nodes from the project argument list. | ||
- False or evaluates False: leave solution file names and nodes in the | ||
project argument list. An exception is not raised. | ||
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Solution file names and/or nodes in the project argument list cause | ||
erroneous Project records to be produced in the generated solution file. | ||
As a convenience, a user may elect to ignore solution file names and nodes | ||
in the projects argument list rather than manually removing solution file | ||
names and nodes from the MSVSProject return values. | ||
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- SCons C preprocessor: | ||
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- Update the optional integer suffixes to include the z|Z and wb|WB | ||
suffixes. | ||
- Add support for binary integer constants. | ||
- Add support for octal integer constants. Previously, octal integers | ||
were evaluated as decimal integers. A literal zero (0) is treated as an | ||
octal number. | ||
- Change the method for attempted conversion of a define expansion value | ||
to an integer from a literal to a constant expression evaluation. | ||
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- Add a tag to each CacheDir to let systems ignore backing it up | ||
(per https://bford.info/cachedir/). Update the way a CacheDir | ||
is created, since it now has to create two files. | ||
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- The Dictionary method now has an as_dict flag. If true, Dictionary | ||
always returns a dict. The default remains to return different | ||
types depending on whether zero, one, or multiple construction | ||
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- A Variables object now makes available a "defaulted" attribute, | ||
a list of variable names that were set in the environment with | ||
their values taken from the default in the variable description | ||
(if a variable was set to the same value as the default in one | ||
of the input sources, it is not included in this list). | ||
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- If a build Variable is created with no aliases, the name of the | ||
Variable is no longer listed in its aliases. Internally, the name | ||
and aliases are considered together anyway so this should not have | ||
any effect except for being visible to custom help text formatters. | ||
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FIXES | ||
----- | ||
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- PackageVariable now does what the documentation always said it does | ||
if the variable is used on the command line with one of the enabling | ||
string as the value: the variable's default value is produced (previously | ||
it always produced True in this case). | ||
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- Temporary files created by TempFileMunge() are now cleaned up on | ||
scons exit, instead of at the time they're used. Fixes #4595. | ||
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- AddOption now correctly adds short (single-character) options. | ||
Previously an added short option would always report as unknown, | ||
while long option names for the same option worked. Short options | ||
that take a value require the user to specify the value immediately | ||
following the option, with no spaces (e.g. -j5 and not -j 5). | ||
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- Fix a problem with compilation_db component initialization - the | ||
entries for assembler files were not being set up correctly. | ||
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- On Darwin, PermissionErrors are now handled while trying to access | ||
/etc/paths.d. This may occur if SCons is invoked in a sandboxed environment | ||
(such as Nix). | ||
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- Added error handling when creating MSVC detection debug log file specified | ||
by SCONS_MSCOMMON_DEBUG. | ||
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- MSVS: Modify select msvs test scripts to run on platforms not supported by | ||
the msvs/msvc tool implementation via a default host architecture for | ||
unsupported platforms. | ||
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- MSVS: Fixed early loop exit in select msvs test scripts. Select msvs test | ||
scripts were being invoked for msvc version 8.0 only. Additional msvs | ||
tool and test changes due to the msvs test scripts being run for all msvc | ||
versions (i.e., minor test and tool issues went undetected). | ||
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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- MSVS: for variant build configurations, msvs solution files are | ||
generated in the source directory and a placeholder file is generated in | ||
the variant build directory. This mirrors the behavior of generated | ||
msvs project files. | ||
https://scons.org/tag/releases.html | ||
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- MSVS: msvs project files are generated before the corresponding msvs | ||
solution file. User-specified project GUIDs should now be correctly | ||
written to the solution file. | ||
================================================================== | ||
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- SCons C preprocessor: Preserve literals that contain valid integer | ||
substring specifications. Previously, the integer suffix could be | ||
stripped from a symbol that contained an integer and suffix substring. | ||
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- SCons C preprocessor: Update the optional integer suffixes to include | ||
support for the alternate orderings of unsigned with long or long long as | ||
defined in the c/cpp grammar. | ||
A new SCons release, 4.9.0, is now available on the SCons download page: | ||
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- SCons C preprocessor: Update the optional integer suffixes for case | ||
insensitive specifications as defined in the c/cpp grammar. | ||
https://scons.org/pages/download.html | ||
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- Fix nasm test for missing include file, cleanup. | ||
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- Skip running a few validation tests if the user is root and the test is | ||
not designed to work for the root user. | ||
Here is a summary of the changes since 4.4.0: | ||
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- Make sure unknown variables from a Variables file are recognized | ||
as such. Previously only unknowns from the command line were | ||
recognized (issue #4645). | ||
NEW FUNCTIONALITY | ||
----------------- | ||
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- Update ninja tool to use ninja.BIN_DIR to find pypi packaged ninja binary. | ||
python ninja package version 1.11.1.2 changed the location and previous | ||
logic no longer worked. | ||
- List new features (presumably why a checkpoint is being released) | ||
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- The (optional) C Conditional Scanner now does limited macro | ||
replacement on the contents of CPPDEFINES, to improve finding deps | ||
that are conditionally included. Previously replacement was only | ||
done on macro definitions found in the file being scanned. | ||
Only object-like macros are replaced (not function-like), and | ||
only on a whole-word basis; recursion is limited to five levels | ||
and does not error out if that limit is reached (issue #4523). | ||
DEPRECATED FUNCTIONALITY | ||
------------------------ | ||
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- Minor modernization: make use of stat object's st_mode, st_mtime | ||
and other attributes rather than indexing into stat return. | ||
- List anything that's been deprecated since the last release | ||
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- Ninja's TEMPLATE rule pool changed from `local_pool` to `install_pool` | ||
hoping it will fix a race condition that can occurs when Ninja defers | ||
to SCons to build. | ||
CHANGED/ENHANCED EXISTING FUNCTIONALITY | ||
--------------------------------------- | ||
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- Renamed env.Help() & Help()'s argument `keep_local` to `local_only`, previously the documentation | ||
specified `local_only`, but the code and tests were using `keep_local`. The functionality | ||
more closely matches local only. NOTE: It doesn't seem like any code in the wild was using | ||
local_only as we'd not received any reports of such until PR #4606 from hedger. | ||
- List modifications to existing features, where the previous behavior | ||
wouldn't actually be considered a bug | ||
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- Fix Issue #2281, AddPreAction() & AddPostAction() were being ignored if no action | ||
was specified when the Alias was initially created. | ||
FIXES | ||
----- | ||
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- Handle case of "memoizer" as one member of a comma-separated | ||
--debug string - this was previously missed. | ||
- List fixes of outright bugs | ||
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IMPROVEMENTS | ||
------------ | ||
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- For consistency with the optparse "add_option" method, AddOption accepts | ||
an SConsOption object as a single argument (this failed previously). | ||
Calling AddOption with the full set of arguments (option names and | ||
attributes) to set up the option is still the recommended approach. | ||
- 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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- Add clang and clang++ to the default tool search orders for POSIX | ||
and Windows platforms. These will be searched for after gcc and g++, | ||
respectively. Does not affect explicitly requested tool lists. Note: | ||
on Windows, SCons currently only has builtin support for clang, not | ||
for clang-cl, the version of the frontend that uses cl.exe-compatible | ||
command line switches. | ||
PACKAGING | ||
--------- | ||
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- List changes in the way SCons is packaged and/or released | ||
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DOCUMENTATION | ||
------------- | ||
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- Some manpage cleanup for the gettext and pdf/ps builders. | ||
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- Some clarifications in the User Guide "Environments" chapter. | ||
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- Clarify documentation of Repository() in manpage and user guide. | ||
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- Many grammatical and spelling fixes in the documentation. | ||
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- Update Clean and NoClean documentation. | ||
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- Improved Variables documentation. | ||
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- Update the User Guide Command() example which now shows a target name | ||
being created from '${SOURCE.base}.out' to use a valid special | ||
attribute and to explain what's being done in the example. | ||
- 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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- Ruff/Mypy: Excluded items now synced. | ||
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- Ruff: Linter includes new rules - `FA`, `UP006`, `UP007`, and `UP037` - to | ||
detect and upgrade legacy type-hint syntax. | ||
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- Removed "SCons.Util.sctyping.py", as the functionality can now be substituted | ||
via top-level `from __future__ import annotations`. | ||
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- Implemented type hints for Nodes. | ||
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- Added TestSCons.NINJA_BINARY to TestSCons to centralize logic to find ninja binary | ||
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- Refactored SCons.Tool.ninja -> SCons.Tool.ninja_tool, and added alias so env.Tool('ninja') | ||
will still work. This avoids conflicting with the pypi module ninja. | ||
- 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 4.8.1..HEAD | ||
50 Mats Wichmann | ||
46 William Deegan | ||
19 Joseph Brill | ||
10 Alex Thiessen | ||
4 Thaddeus Crews | ||
3 Ruben Di Battista | ||
2 Adam Scott | ||
2 Keith F. Prussing | ||
2 Prabhu Singh Khalsa | ||
1 Adam Simpkins | ||
1 Alex James | ||
1 Yevhen Babiichuk (DustDFG) | ||
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git shortlog --no-merges -ns 4.0.1..HEAD |
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