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Add cc.preprocess() method
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When using both_libraries(), or library() with default_library=both, we
remove all sources from args and kwargs when building the static
library, and replace them by the objects from the shared library. But
sources could also come from any InternalDependency, in which case we
currently build them twice (not efficient) and link both objects into
the static library.
It also means that when we needlessly build those source for the static
library, it miss order dependency on generated headers that we removed
from args/kwargs, which can cause build errors in the case the source
from static lib is compiled before the header in shared lib gets
generated.
This happened in GLib:
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/2917.
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https://github.com/mesonbuild/meson/pull/9287 changed the `optimization=0`
to pass `-O0` to the compiler. This change is reasonable by itself
but unfortunately, it breaks `buildtype=plain`, which promises
that āno extra build flags are usedā.
`buildtype=plain` is important for distros like NixOS,
which manage compiler flags for optimization and hardening
themselves.
Letās introduce a new optimization level that does nothing
and set it as the default for `buildtype=plain`.
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A subproject could have a sub-subproject as a git submodule, or part of
the subproject's release tarball, and still have a wrap file for it
(e.g. needed for [provide] section). In that case we need to use the
source tree for the sub-subproject inplace instead of downloading a new
copy into the main project.
This is the case with GLib 2.74, it has a subproject "gvdb" as git
submodule, and part of release tarball, it ships gvdb.wrap file as well.
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Fixes #10523
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In the debug logs, always log if a dependency lookup raises a
DependencyException. In the `required: false` case, this information
would otherwise disappear forever, and we would just not even log that
we tried it -- it doesn't appear in "(tried x, y and z)".
In the `required: true` case, we would re-raise the first exception if
it failed to be detected. Update the raise message with the same
information we print to the debug logs, indicating which dependency and
which method was used in the failing attempt.
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Since this was broken for a long time, we should have a test for it.
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Rename the core_only option in scan_xml to include_core_only
to match the flag used by wayland-scanner.
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wayland-scanner can generate header files that only include
wayland-client-core.h using a flag.
Add a core_only option to scan_xml to support this use case.
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Otherwise the test is flaky, as it may try to include a header that's
not generated yet.
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The returned GResource is transfer-none, since the generated function
basically calls g_static_resource_get_resource(). It should not be
unreffed. Causes an abort on Debian:
GLib-GIO:ERROR:../../../gio/gresource.c:1451:g_static_resource_fini: assertion failed: (g_atomic_int_get (&resource->ref_count) >= 2)
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This is generally a bad idea, e.g. it causes OSError on freebsd.
It also gets ignored by solaris and thus causes unittest failures.
The proper solution is to simply reject any attempt to set this, and log a
warning.
The install_emptydir function does apply the mode as well, and since it
is a directory it actually does something. This is the only place where
we don't reset the mode.
Although install_subdir also installs directories, and in theory it
could set the mode as well, that would be a new feature. Also it doesn't
provide much granularity and has mixed semantics with files. Better to
let people use install_emptydir + install_subdir.
Fixes #5902
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Compiled languages are Meson's bread and butter, but hardly required.
This is convenient, because many test caases specifically, do not care
about testing the compiler interactions.
In such cases, we can skip doing compiler lookups which aren't used, as
they only slow down test setup.
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It used to be listified and libxml2 wrap relies on that.
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`configure_file` is both an extremely complicated implementation, and
a strange place for copying. It's a bit of a historical artifact, since
the fs module didn't yet exist. It makes more sense to move this to the
fs module and deprecate this `configure_file` version.
This new version works at build time rather than configure time, which
has the disadvantage it can't be passed to `run_command`, but with the
advantage that changes to the input don't require a full reconfigure.
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install_mode can include the setuid bit, which has the special property
(mentioned in the set_mode logic for minstall itself) of needing to come
last, because it "will get wiped by chmod" (or at least chown).
In fact, it's not just chown that wipes setuid, but other changes as
well, such as the file contents. This is not an issue for install_data /
custom_target, but for compiled outputs, we run depfixer to handle
rpaths. This may or may not cause edits to the binary, depending on
whether we have a build rpath to wipe, or an install rpath to add. (We
also may run `strip`, but that external program already has its own mode
restoration logic.)
Fix this by switching the order of operations around, so that setting
the permissions happens last.
Fixes https://github.com/void-linux/void-packages/issues/38682
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This was never supposed to be possible, so stop doing it.
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This was never meant to work, it's an implementation detail of using
`importlib.import_module` and that our modules used to be named
`unstable_` that this ever worked.
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Thanks to `ModuleInfo`, all modules are just named `foo.py` instead of
`unstable_foo.py`, which simplifies the import method a bit. This also
allows for accurate FeatureNew/FeatureDeprecated use, as we know when
the module was added and if/when it was stabilized.
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Instead of using FeatureNew/FeatureDeprecated in the module.
The goal here is to be able to handle information about modules in a
single place, instead of having to handle it separately. Each module
simply defines some metadata, and then the interpreter handles the rest.
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Because clang now defaults to a dwarf version that valgrind does not yet
support. There's support in valgrind git master, though.
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In order to reliably link to static libraries or individual object
files, we need to take their languages into account as well. For static
libraries this is easy: we just add the static library's list of
compilers to the build target. For extracted objects, we need to only
add the ones for the objects we use.
But we did this really inefficiently -- in fact, downright terribly. We
iterated over all source files from the extracted objects, then tried to
look up a new compiler for them. Even though the extracted objects
already had a list of compilers! This broke once compilers were made
per-subproject, because while the extracted objects have a reference to
all the compilers it needs (just like static archives do, actually) we
might not actually be able to look up that compiler from scratch inside
the current subproject.
Fix this by asking the extracted objects to categorize all its own
sources and return the compilers we want.
Fixes #10579
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fixes #10566
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Use the same routines to handle output both when parsing the output and
when not. Also fixes broken stderr handling for parsed tests.
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Currently, if we run "meson configure -Doption=value", meson will
do a reconfigure when running "ninja build" afterwards, even if
the new value is the same one that was already configured previously.
To avoid this unnecessary reconfigure, let's use replace_if_different()
instead of unconditionally replacing the conf file in coredata's save()
function.
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This forces the use of the Apple archiver, since that archiver doesn't
add extern'd variables to the symbol table automatically, and instead
requires that ranlib be used. A native file is used to ensure that
Apple's ar is used even in the presence of llvm or gcc in the path with
their superior archivers.
Co-authored-by: Dylan Baker <dylan@pnwbakers.com>
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These checked that e.g. the cpp and fc ids are identical, which isn't
strictly what we want. Particularly, msvc doesn't even have a fortran
compiler, and what we really care about is whether we mix both gcc and
something else.
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Primarily interesting to me because it is then available for the python
module's install_sources method.
Based on the new feature in install_headers.
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This error message was quite confusing when triggered by
use of an absolute path to the include dir of an external dependency
(numpy in my case). Changing that to a relative dir also isn't
a solution, because Meson will *not* do the "busywork to make paths
work" that the error message says it will.
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This is undefined behaviour, and seems to have caused test failures
when backporting Meson to an older toolchain in the Steam Runtime.
Signed-off-by: Simon McVittie <smcv@collabora.com>
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We have to handle this, because Windows needs to link to the implib of
the executable (???) in order to create a shared module. This is
explicitly checked for and handled in the backend, and creating a build
target with `link_with: some_exe` still works, even. But updating
declare_dependency to typed_kwargs neglected to take that into account,
so creating a convenience interface for those same arguments failed.
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add D generated files to order-only deps
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If there isn't a preexisting dependency on python, append one. It's
almost assuredly needed, so just do the right thing out of the box.
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Co-authored-by: Dylan Baker <dylan@pnwbakers.com>
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The unit test was racy but surprisingly never failed on CI. The reason
is we need to ensure ninja build somelib.so before running `make` into
the external project.
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We will momentarily use this to implement typed_kwargs, but not for all
usage sites.
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Dlang uses both integer version "levels" and arbitrary string
identifiers, and we support both, but don't mention it in the docs.
Also update a test case to pass one via declare_dependency. We already
test this kwarg for build_target.
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The check for whether or not a file is allowed to be accessed from a
subproject fails if the subproject is accessed via a symlink. Use the
absolute path of the subproject without resolving symlinks to fix the
check.
Extend unit test 106 to check for this in the future.
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Regression in commit 7c757dff71c031ae02ecc358a69a213a5db4051a.
SubprojectHolder is no longer an ObjectHolder and says so via a TODO:
this means that we have to fiddle with held_object. Yay.
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When a subproject is disabled on the initial configuration we should not
add it into self.coredata.initialized_subprojects because that will
prevent calling self.coredata.init_builtins() on a reconfigure if the
subproject gets enabled.
Fixes: #10225.
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A single target could be picked for unity build, and in that case
extract_objects() should not be allowed.
Likewise for the opposite case, where extract_objects() should be allowed
if unity build is disabled for a single target. A test that covers that
case is added later.
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