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There are two environments on Windows:
* When invoked in a Cygwin or MSYS2 MSYS shell, `host_machine.system()` returns `cygwin`.
* When invoked in a MSYS2 MINGW32/MINGW64/UCRT64/CLANG64/etc., `host_machine.system()` returns `windows`.
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When projects do not specify a minimum meson version, we used to avoid
giving them the benefit of the Feature checks framework. Instead:
- warn for features that were added after the most recent semver bump,
since they aren't portable to the range of versions people might use
these days
- warn for features that were deprecated before the upcoming semver
bump, i.e. all deprecated features, since they aren't portable to
upcoming semver-compatible versions people might be imminently upgrading
to
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Previously, setting `MESON_TESTTHREADS` to a number lower than 1
resulted in unexpected behavior. This commit introduces test for
negative value (with fallback to 1), and fallback to core count in case
it is set to 0.
It improves experience in job-matrix type of CI workflows, where some
jobs within the matrix require single job execution, whereas others can
default to taking core count as the job count.
Signed-off-by: Marek Pikuła <m.pikula@partner.samsung.com>
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Although it's not especially common, there are certainly cases where it's
useful to pass the path to an external program to a test program.
Fixes: https://github.com/mesonbuild/meson/issues/3552
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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CMake has two target properties, LINK_OPTIONS and INTERFACE_LINK_OPTIONS.
The former is for link flags that apply only to the target (PRIVATE).
The latter is used for link flags that propagate to dependents (PUBLIC
or INTERFACE). Meson currently propagates all flags, PUBLIC and PRIVATE,
as part of the generated dependency() which causes problems when some of
the private flags are highly disruptive, e.g. `-Wl,--version-script`.
Tease apart the two kinds of link flags and, for non-static libraries,
only propagate the PUBLIC/INTERFACE flags and not the PRIVATE ones.
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This reverts commit 9f02d0a3e5a5ffc82256391c244b1af38e41ef78.
It turns out that this does introduce a behavioral change in existing
users of ConfigurationData, which it wasn't supposed to (it was supposed
to preserve behavior there, and add a new *warning* for
EnvironmentVariables).
This breaks projects such as pulseaudio, libvirt, and probably more.
Roll back the change and try again after 1.5.0 is released.
Fixes: #13372
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When trying to get the version of a program, meson was previously
hardcoded to run the binary with `--version`. This does work with the
vast majority of programs, but there are a few outliers (e.g. ffmpeg)
which have an unusual argument for printing out the version. Support
these programs by introducing a version_argument kwarg in find_program
which allows users to override `--version` with whatever the custom
argument for printing the version may be for the program.
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Let's allow users to configure how many lines are shown at most when
a test fails.
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Cargo.lock is essentially identical to subprojects/*.wrap files. When a
(sub)project has a Cargo.lock file this allows automatic fallback for
its cargo dependencies.
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New people that want to use Meson for building Python extensions most
probably will read Python module docs first. Direct them to meson-python
and suggest to set `python.install_env=auto`.
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See https://github.com/mesonbuild/meson/issues/6269 for the discussion.
Co-authored-by: Eli Schwartz <eschwartz93@gmail.com>
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The master branch isn't in experimental state anymore.
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We changed the behavior in #6116 but did not change the docs as well.
Fixes #8233
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Basic support for TI Arm Clang toolchain
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@PLAINNAME@ and @BASENAME@ cannot be used in custom_target()
with multiple inputs. For those, similar macros are needed
with an index.
Fixes #13164
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warning_level=0 is not 'none' but 'compiler default'.
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When running our integration tests in systemd we depend on each test
having a unique name. This is always the case unless --repeat is used,
in which case multiple tests with the same name run concurrently which
causes issues when allocating resources that use the test name as the
identifier.
Let's set MESON_TEST_ITERATION to the current iteration of the test so
we can use $TEST_NAME-$TEST_ITERATION as our test identifiers which will
avoid these issues.
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This is new as of 14.1.
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This is a similar commit to the one that added required to all the
compiler.has* functions.
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This uses objfw-config to get to the flags, however, there's still
several todos that can only be addressed once dependencies can have
per-language flags.
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NumPy is built with Meson since version 1.26.
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The docs didn't really explain what the issue was with using it. And
it's not actually a "crash" either way.
The FeatureNew mentions that "name" is new, but it is standard for
these warnings to tell you both the type of object you're operating on
and the name of the method that is an issue. This omitted the former,
and was very confusing.
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Add meson test --interactive
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This is very similar to --gdb, except it doesn't spawn GDB, but
connects stdin/stdout/stderr directly to the test itself. This allows
interacting with integration tests that spawn a shell in a container
or virtual machine when the test fails.
In systemd we're migrating our integration tests to run using the
meson test runner. We want to allow interactive debugging of failed
tests directly in the virtual machine or container that is spawned
to run the test. To make this possible, we need meson test to connect
stdin/stdout/stderr of the test directly to the user's terminal, just
like is done with the --gdb option.
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This allows `cc.find_library().name()` to work, just like
`dependency().name()`.
Fixes: #13053
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- Mention 2 space indent seems to be the most idiomatic
- Mention trailing commas are good
- Update example to use trailing commas
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Refer https://github.com/mesonbuild/meson/blob/master/docs/markdown/Machine-files.md?plain=1#L285
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Some projects, like Postgres, distribute code in this format.
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Only Environment and ConfigurationData are mutable. However, only
ConfigurationData becomes immutable after first use which is
inconsistent.
This deprecates modification after first use of Environment object and
clarify documentation.
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Adds a howto section describing how to put files in a separate build
target and override the unity build setting, and why you might want to
do this.
Closes: #13031
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