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.
Otherwise internal dependencies have auto-generated names that are not
human readable. Instead, use the name that the dependency overrides. For
example:
```meson
meson.override_dependency('zlib', declare_dependency())
dep_zlib = dependency('zlib')
assert(dep_zlib.name() == 'zlib')
```
Fixes: #12967
musl 1.2.5 exposes this symbol in the default profile, and in future
will expose it unconditionally, as it is on track to becoming part of
POSIX.
So rather than maintaining a list of systems to run this on, let's
just skip testing the feature test macro if we find ppoll in the
default profile.
This code cleverly tried to use a fancy new pathlib.Path method to get
the os.path.commonpath of two paths and check whether one is inside the
other. It failed pretty badly, because of a hidden secret of pathlib: it
is designed to throw random exceptions at all times (except when
building os.PathLike interfaces) instead of performing useful work.
Return to `os.path`.
In particular, before this change, we wanted to check if files are NOT
in a subpath of `preserve_path_from`, and raise a meson "ERROR: xxx" in
such a case. However, the code to check for it would raise a python
ValueError if that was the case, so we never got to the properly
formatted error.
Apple Clang defaults to C++03 or earlier, and boost 1.84 has started
requiring C++11 as a minimum. Fixes test failures on the macOS builders.
Unneeded for GCC systems since GCC defaults to a more recent std -- but
also semantically correct there too.
This patch adds 'depends' keyword to compiler.preprocess().
It allows to execute other targets before doing the preprocessing.
Test-case is added to demonstrate that functionality: it
generates the header before preprocessing the C source that
uses that generated header.
Thanks to @bruchar1 for getting this patch to work.
This replaces all of the Apache blurbs at the start of each file with an
`# SPDX-License-Identifier: Apache-2.0` string. It also fixes existing
uses to be consistent in capitalization, and to be placed above any
copyright notices.
This removes nearly 3000 lines of boilerplate from the project (only
python files), which no developer cares to look at.
SPDX is in common use, particularly in the Linux kernel, and is the
recommended format for Meson's own `project(license: )` field
The new linker in Sonoma / Xcode 15 considers the dependency via the
initializer sufficient to pull in the library. The man page now notes:
The linker never dead strips initialization and termination routines.
They are considered "roots" of the dead strip graph.
I could not find a good way to skip only if the linker version is new
enough. Before long everyone will be using the new linker anyway...
This is needed now that str.format() is not allowing it any more. It is
also more consistent with other objects that have that method as well,
such as build targets.
Fixes: #12406
* unity builds: correct integer ceiling division
* edge case failure with unity builds:
- static archive bar that gets installed, that links with another static
archive foo that does not get installed
- the number of files in static archive foo is divisible by unity_size
would yield an error with ninja:
ninja: error: 'subprojects/foo/src/libfoo.a.p/meson-generated_foo-unity1.cpp.o', needed by 'src/libbar.a', missing and no known rule to make it
* unity builds: test for build failure when #files is divisible by unity_size
has_function_attribute() depends on -Wattributes being emitted when an attribute
is not supported by the compiler. In case of GCC on Window (at least) there is no
warning in case the attribute is used on a declaration. Only once there is also a
function definition does it emit a warning like:
a.c: In function ‘foo’:
a.c:8:1: warning: visibility attribute not supported in this configuration; ignored [-Wattributes]
8 | }
To fix this add a dummy function definition to all visibility compiler checks in meson.
The tests in "197 function attributes" only checked for positive return result on on-msvc
compilers, except one special case for dllexport/dllimport. Refactor the tests a bit so
one can specify also a negative expected result, and add tests for all visibility attribute
variants.
Which allow passing arguments specifically to the static or shared
libraries.
For design, this is all handled in the interpreter, by the build layer
the arguments are combined into the existing fields. This limits changes
required in the mid and backend layers
This should be an error, not an assert as it asserts nothing,
in fact, if this wouldn't error out because of the wrong type
passed to the assert, it would even do the wrong thing.
Follow-up to #12223
Xcode always fails here because this makes the PCH not be the first
included header, causing Xcode to ignore it completely. There is no
way around this.
Allow macro_name to be speficied as a parameter to configure_file().
This allows C macro-style include guards to be added to
configure_file()'s output when a template file is not given. This change
simplifies the creation of configure files that define macros with
dynamic names and want the C-style include guards.
- On Windows, it was not detected if include directory was an absolute
path to source directory, because of the mis of path separators.
- In the edgecase the include directory begins with the exact same
string as the source directory, but is a different directory, it was
falsely reported as an error.
Fixes#12217.
Adds a new method to the compiler object, has_define.
This makes it possible to check if a preprocessor macro/define
is set or not.
This is especially helpful if the define in question is empty,
for example:
#define MESON_EMPTY_DEFINE
This would yield the same results as a missing define with
the existing get_define method, as it would return an empty
string for both cases. Therefore this additional method is
needed.
This reverts commit f52bcaa27f.
It did not pass CI, and was merged anyway because there were two CI
errors in the same cygwin job. The other error was not the fault of this
commit, and since cygwin errors were glossed over because they were
"expected", the presence of a new error *added* by this commit was
overlooked.
Per the meson development policy, PRs which result in CI errors
can/should be reverted at will, no questions asked.
add the "required" keyword to the functions
has_function
has_type
has_member
has_members
has_argument
has_multi_arguments
has_link_argument
has_multi_link_argument
has_function_attribute
Co-authored-by: Milan Hauth <milahu@gmail.com>
Xavier Claessens
Gerion Entrup
Dylan Baker
Alyssa Ross
Jussi Pakkanen
L. E. Segovia
Tristan Partin
Charles Brunet
Eli Schwartz
Stas Sergeev
Peter Urban
Tamás Bálint Misius
arch1t3cht
Andres Freund
David Seifert
Christoph Reiter
Nomura
Marvin Scholz
Albert Tang
Arsen Arsenović
Nicholas Vinson
Benoit Pierre
Eli Schwartz