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
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.
`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.
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
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.
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.
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.
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
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>
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.
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.
The `install_headers` function now has an optional argument
`preserve_path` that allows installing multi-directory
headerfile structures that live alongside sourcecode with a
single command.
For example, the headerfile structure
headers = [
'one.h',
'two.h',
'alpha/one.h',
'alpha/two.h',
'alpha/three.h'
'beta/one.h'
]
can now be passed to `install_headers(headers, subdir: 'mylib', preserve_path: true)`
and the resulting directory tree will look like
{prefix}
└── include
└── mylib
├── alpha
│ ├── one.h
│ ├── two.h
│ └── three.h
├── beta
│ └── one.h
├── one.h
└── two.h
Fixes#3371
"targetting" is verb-derived adjective, which sort-of-works here, but
makes the whole sentence awkward, because there's no verb. Let's just
use present simple.
"tried to use" implies that the attempt was not successful, i.e. that meson
ignored the feature. But that is not what happens, apart from the warning the
feature works just fine. The new message is also shorter ;)
Some projects treat meson.project_source_root() as the root of the
dependency files, because the project itself merely wraps a bunch of
datafiles. Our validation to make sure this doesn't point to another
subproject, made use of pathlib.Path's generator for all component
paths, which... did not include the path itself. So go ahead and
explicitly check that too. Add a test case to verify it while we are at
it.
Fixes https://github.com/mesonbuild/meson/pull/10103#issuecomment-1114901033
This function can be used to add fundamental dependencies such as glib
to all build products in one fell swoop. This can be useful whenever,
due to a project's coding conventions, it is not really possible to
compile any source file without including the dependency.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+ Extend the parser to recognize the multiline f-strings, which the
documentation already implies will work.
The syntax is like:
```
x = 'hello'
y = 'world'
msg = f'''This is a multiline string.
Sending a message: '@x@ @y@'
'''
```
which produces:
```
This is a multiline string.
Sending a message: 'hello world'
```
+ Added some f-string tests cases to "62 string arithmetic" to exercise
the new behavior.
There are somewhat common, reasonable and legitimate use cases for a
dependency to provide data files installed to /usr which are used as
command inputs. When getting a dependency from a subproject, however,
the attempt to directly construct an input file from a subproject
results in a sandbox violation. This means not all dependencies can be
wrapped as a subproject.
One example is wayland-protocols XML files which get scanned and used to
produce C source files.
Teach Meson to recognize when a string path is the result of fetching a
dep.get_variable(), and special case this to be exempt from subproject
violations.
A requirement of this is that the file must be installed by
install_data() or install_subdir() because otherwise it is not actually
representative of what a pkg-config dependency would provide.
Dependencies in the "if_true" keyword argument do not prevent the
sources from being used; in other words, they work just like dependencies
with "disabler: false".
However, this was broken in commit ab0ffc6a2 ("modules/sourceset: Fix
remaining typing issues", 2022-02-23) which changed logic instead of
just fixing typing issues. This was likely an attempt to avoid using
"dependencies.Dependency" after the "dependencies" field was declared,
but it also broke QEMU.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We are supposed to fallback on the fallback when running the vcstagger,
but instead we errored out during configure.
Fixes regression in commit b402817fb6.
Before this, we used shutil.which || relative paths, and in the latter
case if it could not be found we still wrote out that path but it failed
to run in vcstagger. Now, we use find_program under the hood, so it
needs to be run in non-fatal mode, and if it is not found, we simply
keep the original command string. It's a VCS command, so if we magically
end up finding it at runtime because it was installed after running
configure, that is *fine*.
It is often useful to check the found version of a program without
checking whether you can successfully find
`find_program('foo', required: false, version: '>=XXX')`
In a bunch of cases we create a series of sample libraries named "a",
"b", "c" etc.
This breaks on musl. Originally reported with muon via commit
ca5c371714
and also breaks the testsuite when packaging meson for alpine linux.
libc.so is an existing library which is linked in by default for all the
obvious reasons. You can get away with this on glibc, because that
includes a soversion of "6", but it loads the wrong library on musl.
Automatically generate additional variables and write them into the
generated pkg-config file.
This means projects no longer need to manually define the ones they
use, which is annoying for dataonly usages (it used to forbid setting
the base library-relevant "reserved" ones, and now allows it only for
dataonly. But it's bloat to manualy list them anyway).
It also fixes a regression in commit
248e6cf473 which caused libdir to not be
set, and to be unsettable, if the pkg-config file has no libraries but
uses the ${libdir} expansion in a custom variable. This could be
considered likely a case for dataonly, but it's not guaranteed.
This removes the ability to use ConfigurationData as a dict, but
restricting the inputs to `str | int | bool`. This may be a little too
soon for this, and we may want to wait on that part, it's only bee 8
months since we started warning about this.
pkgconf has a bug on MSYS2 due to which prefixes with spaces are not
handled correctly if the library has a Requires: on another library
and both have prefixes with spaces in them.
See: https://github.com/pkgconf/pkgconf/issues/238
So move the unit test to libanswer.pc instead of libfoo.pc till that
is fixed.
If a pkg-config dependency has multiple libraries in it, which is the
most common case when it has a Requires: directive, or when it has
multiple -l args in Libs: (rare), then we don't add -Wl,-rpath
directives to it when linking.
The existing test wasn't catching it because it was linking to
a pkgconfig file with a single library in it. Update the test to
demonstrate this.
This function was originally added for shared libraries in the source
directory, which explains the name:
https://github.com/mesonbuild/meson/pull/2397
However, since now it is also used for linking to *all* non-system
shared libraries that we link to with absolute paths:
https://github.com/mesonbuild/meson/pull/3092
But that PR is incomplete / wrong, because only adding RPATHs for
dependencies that specify a single library, which is simply
inconsistent. Things will work for some dependencies and not work for
others, with no logical reason for it.
We should add RPATHs for *all* libraries. There are no special length
limits for RPATHs that I can find.
For ELF, DT_RPATH or DT_RUNPATH are used, which are just stored in
a string table (DT_STRTAB). The maximum length is only a problem when
editing pre-existing tags.
For Mach-O, each RPATH is stored in a separate LC_RPATH entry so there
are no length issues there either.
Fixes https://github.com/mesonbuild/meson/issues/9543
Fixes https://github.com/mesonbuild/meson/issues/4372
Eli Schwartz
Xavier Claessens
Dylan Baker
Hemmo Nieminen
Jussi Pakkanen
Simon McVittie
Paolo Bonzini
Paweł Marczewski
Florian "sp1rit"
Tristan Partin
Zbigniew Jędrzejewski-Szmek
Peter Lesslie
Kirill Isakov
Arsen Arsenović
Gatgat
Itoh Shimon
Nirbheek Chauhan