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Fixes: #12202
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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.
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Compiler checks were not adding build dir side, which prevents using
headers generated with configure_file().
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Fixes: #5399
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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>
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In order to pass a File object down into the compiler impl and compile
it, we cannot pass a string with the filename, and we cannot either pass
the File object as-is, since it relies on being given Environment
attributes to calculate the relative location. So we build a fresh File
object as an absolute path.
But the code to do this was totally broken. Instead of using the File
method to get an absolute path, we used one that expected to create
builddir-relative paths... and then gave it the absolute source dir as
the "relative path portion" prefix. This worked by accident as long as
it wasn't a built File, but if it was a built file then we intentionally
didn't include that prefix -- which was wrong anyway, since we need the
build directory!
Use the correct method to get an absolute path in all cases, and emit a
warning if it was a built file. This never worked. Sometimes it crashed,
sometimes it silently returned false.
Fixes #11983
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Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
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In commit c2a55bfe43fae1b44cf49a083297d6755c89e1cc multiple bugs were
fixed, but a FeatureNew was only added for the one that was mentioned in
the commit message.
Make sure to warn users about the reliability of the one that wasn't
mentioned, too.
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We add a unique ID to each rule we create, to work around the use of
an entire build target with private directory named "preprocess" per use
of the preprocess() method.
But this ID doesn't need to increment every time it is used anywhere --
only when it is used in the same subdir as a previous time. That is the
only case where it could conflict.
By making the increment counter per-subdir, we can avoid potential
frivolous rebuilds when a new preprocess() is added in a different
directory, the build is reconfigured, and all uses in the entire project
tree suddenly get new output paths even if they haven't changed.
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Which is pretty trivial
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This is more in line with other tests. It also looks better when introducing
caching, as a subsequent commit will.
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It was documented to be supported but only File and str were actually
working.
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This introduce a new type of BuildTarget: CompileTarget. From ninja
backend POV it is the same thing as any other build target, except that
it skips the final link step. It could be used in the future for
transpilers too.
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This case is identical to the case when there's no dependencies
specified, so it should behave the same way.
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cc.compiles(), and other compiler checks that use cc.compiles() under
the hood, do not use link args at all when doing the compile check, so
messages like this:
```
Checking if "have zlib" with dependency -lz compiles: YES
```
is very misleading. The compiler check command-line for that is:
```
cc [...]/testfile.c -o [...]/output.obj -c -D_FILE_OFFSET_BITS=64 -O0
```
Note the lack of linker args.
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Change message
Header <foo.h> has symbol "BAR"
to
Header "foo.h" has symbol "BAR"
with the first part also now in bold. This is more consistent with
other messages like
Has header "foo.h"
and
Checking whether type "foo" has member "bar"
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By default, meson will try to look for shared libraries first before
static ones. In the meson.build itself, one can use the static keyword
to control if a static library will be tried first but there's no simple
way for an end user performing a build to switch back and forth at will.
Let's cover this usecase by adding an option that allows a user to
specify if they want dependency lookups to try static or shared
libraries first. The writer of the meson.build can manually specify the
static keyword where appropriate which will override the value of this
option.
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Extract to a separate function the code that resolves dependencies
for compiler methods. We will reuse it for add_project_dependencies().
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In commit b30dddd4e5b4ae6e5e1e812085a00a47e3edfcf1, various refactorings
were done, during which a kwarg got accidentally dropped from the
function that determined part of the log message. As a result, a ':'
suddenly appeared in the log message where none should be.
Example expected output:
Checking if "-Werror=shadow with local shadowing" compiles: YES
What actually happened:
Checking if "-Werror=shadow with local shadowing" : compiles: YES
Fixes #9974
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In commit 0deab2ee9efc2ffe9e43f2787611e34656e6a304 we added the ability
to pass a declare_dependency() to any compiler method that accepts
"dependencies", but we never marked the version it is available since.
Fixes #9957
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If the compiler check is updated as a string in meson.build, we force
rebuild, which is a good thing since the outcome of that check changes
the configuration context and can enable or disable parts of the build.
If the compiler check came from a files() object then we didn't add a
regen rule on those files.
Fixes #1656
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All changes were created by running
"pyupgrade --py3-only"
and committing the results. Although this has been performed in the
past, newer versions of pyupgrade can automatically catch more
opportunities, notably list comprehensions can use generators instead,
in the following cases:
- unpacking into function arguments as function(*generator)
- unpacking into assignments of the form x, y = generator
- as the argument to some builtin functions such as min/max/sorted
Also catch a few creeping cases of new code added using older styles.
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Allow using the links method to test that the C++ driver (e.g. g++) can be used to
link C objects. One usecase is that the C compiler's libsanitizer might not be
compatible with the one included by the C++ driver.
This is theoretically backwards-incompatible, but it should be treated as a
bugfix in my opinion. There is no way in Meson to compile a .c file with the
C++ driver as part of a build target, therefore there would be no reason to
do something like meson.get_compiler(meson.get_compiler('cpp').links(files('main.c')).
Fixes: #7703
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The correct way to mark these is `KwargInfo(..., (T, type(None)))`.
There's also a few cases of `(T, None)` which is invalid, as `None`
isn't a type
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This is quite valuable for enum-like inputs, where only a certain set
of values is allowed.
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This adds a full set of `typed_pos_args` and `typed_kwarg` decorations,
as well as fixing all of the typing errors reported by mypy.
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It's not documented, and it's been marked deprecated for who knows how
long.
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The former isn't really correct, as it wants a set and is getting a
dict, the other is also conceptually clearer I think.
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compiler.get_supported_arguments with @typed_kwargs
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compiler.get_supported_arguments
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