Apple's AR is old, and doesn't add externed symbols to the symbol table,
instead relying on the user calling ranlib with -c. We need to do that
for the user
In commit 4ca9a16288 we added unreliable
support (it warns you if you try it) for gcc-compatible treatment of
uppercase-C files being C++ instead of C. In order to handle it
correctly, we needed to evaluate can-compile by special-casing "C" to
avoid lowercasing it for comparisons.
This didn't cover all cases where we check if "C" is a C++ language
file. We also straight-up check the language of a file (rather than
working backwards to see if a C++ compiler can compile it) when doing
module scanning, and this needs to special-case "C" as well.
We also had one case where we only checked lowercase fortran extensions,
but not lowercase C++ extensions. While we are at it, use lowercase for
C++ as well, except the "C" special case.
Fixes#10629
Ninja backend will fail to find the vs dep dependency
prefix string in a mingw64 environment. This change
simply updates the regex to be able to capture mingw64's unique
file separation pattern.
Regardless of which MachineChoice we base the platform on, we compare
its value to lowercased identifiers. So we need to lowercase the
targetplatform too... but we only did so sometimes.
This broke e.g. on "Win32", but only when *not* doing a cross build.
Fixes#10539
At several points in the code base, f-strings are not correctly expanded
due to missing 'f' string prefix. This fixes all the occurrences I could
find.
Instead of asking the ExtractedObjects, but with a hook back into the backend,
use the existing function in the backend itself. This fixes using the
extract_objects(...) of a generated source file in a custom_target.
It should also fix recursive extract_all_objects with the Xcode backend.
Fixes: #10394
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.
'meson-test-prereq' now depends on any targets that were formerly added
directly to 'all'. Behavior is not changed -- the all target still
depends on this other meta-rule, and thus indirectly depends on all
targets it used to depend on.
It is now possible to build just the targets needed for the testsuite
and then e.g. run `meson test --no-rebuild`.
There are a couple issues that combine to make the current handling a
bit confusing.
- we call it "install_dir_name" but it is only ever the class default
- CustomTarget always has it set to None, and then we check if it is
None then create a different variable with a safe fallback. The if is
useless -- it cannot fail, but if it did we'd get an undefined
variable error when we tried to use `dir_name`
Remove the special handling for CustomTarget. Instead, just always
accept None as a possible value of outdir_name when constructing install
data, and, if it is None, fall back to {prefix}/outdir regardless of
what type it used to be.
Since they are actually dependencies out the output not the Generator
itself.
This fixes dependency issues in the ninja backend, allowing Meson to
rebuild more accurately. It also does sometimes in the vs backend, but
there are problems in the vs backend I'm not sure how to solve. The
vsbackend is, itself, so fragile looking I don't want to get too
involved with it.
This doesn't actually fix the problem, but it provides parity with what
is currently happening. I don't have access to a Windows machine to
further debug, however, so not breaking anything is the best I can do
ATM.
We don't want to allow targets that conflict with:
- our aliased meson-* targets for phony commands
- any meson-*/ directories we create for internal purposes
We do want to allow targets such as:
- our own meson-*.X manpages
There are a couple routes we could take.
Using a better restriction, such as `meson-internal__*`, is trivially
done for our aliased targets, but changing directory names is...
awkward. We probably cannot do this, and doing the former but not the
latter is not very useful.
We could also carefully allow patterns we know we won't use, such as
file extensions, but which the manpages need, which works for our
directories and for many aliased targets, but run_target() is
user-specified and can be anything.
Use a hybrid approach to cover both use cases. We will now allow target
names that fulfill *all* the following criteria:
- it begins with "meson-"
- it doesn't continue with "internal__"
- it has a file extension
Every phony target has a special indirection rule created because ninja
is bad at deleting generated outputs and tries to delete phony outputs
too.
Instead of invoking this as a separate helper post-creation function to
create the alias, wrap NinjaBuildElement and create it behind the
scenes. This simplifies target naming and means one less line at every
single use site.
Forcing serialization on when writing out the build rule makes very
little sense. It was always "forced" on because we mandated a couple of
environment variables due to legacy reasons.
Add an attribute to RunTarget to say that a given target doesn't *need*
those environment variables, and let ninja optimize them away and run
the command directly if set.
That method had nothing specific to the backend, it's purely a Target
method. This allows to cache the OptionOverrideProxy object on the
Target instance instead of creating a new one for each option lookup.
We print a warning if a compilation database isn't successfully
generated, which is good, because that gives some visibility in case the
user really wanted to use the compdb. But warnings default to being
fatal with --fatal-meson-warnings, which is not so good, because this
isn't a very important warning at all, and we'd rather not error out in
such cases when building works fine and a random bonus IDE feature
doesn't work.
Mark this particular warning as non-fatal.
Fixes side issue in https://github.com/mesonbuild/wrapdb/pull/343#issuecomment-1074545609
In the even that all of the inputs are generated, and they're all
generated into the same folder, and there are no subfolders, we would
fail to correctly handle all of the files after the main file. Let's fix
that.t
We currently don't handle subdirectories correctly in
structured_sources, which is problematic. To make this easier to handle
correctly, I've simply changed `structured_sources` to only use Files
and not strings as an implementation detail.
In this case, the test fname might have an implicit extension and cannot
be found by `os.path.isfile()`.
We cannot use `shutil.which()` to handle platform differences, because
not all test fnames are executable -- for example Java jars.
The test representation does have an "is built" attribute which in
theory should work here, because all built targets definitely have their
full filename known to Meson, but it turns out to be misnamed. Rename it
correctly and add an actual "is built" attribute to check.
Tests which aren't built by Meson can be assumed to exist without
consulting their existence on the filesystem.
Fixes#10027
Using future annotations, type annotations become strings at runtime and
don't impact performance. This is not possible to do with T.cast though,
because it is a function argument instead of an annotation.
Quote the type argument everywhere in order to have the same effect as
future annotations. This also allows linters to better detect in some
cases that a given import is typing-only.
Dylan Baker