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`try_compile` and `try_run` now automatically log checks using them to
`CMakeConfigureLog.yaml`.
Add `LOG_DESCRIPTION` arguments to some `try_compile` calls to
replace the description previously written to the old logs.
Issue: #23200
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Xcode uses its own heuristics to determine whether or not to accept
top-level code in a source file while Ninja uses the swift driver
heuristics.
With the Swift driver, if the module contains a single file, that file
will be parsed as a top-level code context. With Xcode, the single file
will only be parsed as top-level code if the name of that file is
'main.swift'.
To ensure more consistent behavior between the two generators, if we're
building Swift and the try-compile target type is executable or
undefined, we name the file `main.swift` to ensure that both will handle
the single file as top-level code.
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Plumb through swift `check_source_compiles` support. Add tests to check
that valid swift sources compile and invalid sources don't.
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Modify some modules that ship with CMake to use the new SOURCES_FROM_*
arguments to try_compile / try_run as added by commits cb14ae2b87
(try_compile: Add SOURCE_FROM_{ARG,VAR}, 2022-09-21) and 611d801790
(try_compile: Add SOURCE_FROM_FILE, 2022-09-22). This covers users which
previously either used an existing file (but sometimes needed to rename
it), or which wrote out their source in entirety. It does NOT cover
users that actually need configure_file functionality, as those will be
more involved to update and will thus be tackled in part 2.
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Modify most of the modules that ship with CMake to use the new
try_compile / try_run signatures added by commit aa9220d3a0
(try_compile: Add keyword-dispatched signature, 2022-09-02). This
improves debugging by each invocation using its own directory so that
the results of multiple invocations can be retained.
This does not cover any invocations which provide an entire project, as
that flavor of try_compile has not yet been updated.
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Fix the language checks added by commit 90dead024c (CheckCompilerFlag:
unified way to check compiler flags per language, 2020-09-25,
v3.19.0-rc1~88^2), commit 10ae907de0 (CheckSoureCompiles: Add a unified
way to check if a source compiles, 2020-09-14, v3.19.0-rc1~118^2~1), and
commit 357e2ef429 (CheckSoureRuns: Add a unified way to check if a
source runs, 2020-09-14, v3.19.0-rc1~118^2) to work when variables of
the language names are set.
Fixes: #21500
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The conversion of Check<Lang>CompilerFlag, SourceCompiles, and
SourceRuns over to the new functions has the possibility of breaking
projects that had functions with those existing names.
To reduce the possibility of collisions we now have all the
legacy code call functions that start with `cmake_`, and users
will need to explicitly include the new modules to get the
non-prefixed versions
Fixes: #21359
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