When the encoding is not specified, open() may choose an encoding
based on the locale in use. That encoding may have no relationship
to the encoding of the file being opened. Use the locale from the
document settings instead, which should better match the file's
encoding.

Fixes: #24679

We know the encoding of the schema file, so we should specify it
when we open it for reading. Previously, by not specifying it, the test
was open to using an encoding based on the active locale when
running the test. We may have been enforcing a "C" locale at a higher
level, but we don't need to rely on that here, we can force correct
behavior without that assumption.

Issue: #24679

e4f26ed Tests: Always load presets schema as UTF-8
fc2b60c Sphinx: Modernize UTF-8 encoding handling when updating CMake.qhp
853f069 Sphinx: Specify encoding when opening files for title extraction

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !8521

The matching became too eager after commit 079ea66
(CMakeDetermineCompilerABI: Handle NVCC-style -Werror flags, 2020-10-04,
v3.19.0-rc1~45^2). When -Werror was specified without a value we would
eat the following flag. Prevent this by disallowing "-" as the first
character of the flag's value.

Fixes: 079ea66
See-also: https://discourse.cmake.org/t/8230

cec6f98 CMakeDetermineCompilerABI: Avoid removing the flag after -Werror

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robertjmaynard@gmail.com>
Merge-request: !8518

In commit d78bfa1 (Utilities/Sphinx: support cmakedomain running in
parallel, 2022-10-24, v3.26.0-rc1~495^2) we declared the domain as
parallel-safe without actually implementing the required
`merge_domaindata` method.

Issue: #24076

In commit b787be2 (Help: Update supported languages in project and
enable_language, 2023-01-20, v3.26.0-rc1~53^2) the relevant paragraph
was accidentally moved to the `enable_language` command documentation.

Fixes: #25016

Merge-request: !8575

Merge-request: !8585

According to ARMClang documentation 6.20, the patch version number
should not include the last two digits of `__ARMCOMPILER_VERSION`,
which are reserved for internal use by ARM.

Merge-request: !8636