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build: add -Wthread-safety-pointer 

This will become available in Clang 21:

> ThreadSafetyAnalysis now supports -Wthread-safety-pointer, which
> enables warning on passing or returning pointers to guarded variables
> as function arguments or return value respectively. Note that
> ThreadSafetyAnalysis still does not perform alias analysis. The
> feature will be default-enabled with -Wthread-safety in a future release.

See
https://github.com/llvm/llvm-project/blob/main/clang/docs/ReleaseNotes.rst.
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fanquake 2025-05-30 16:52:25 +01:00
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commit 83bfe1485c
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@ -443,6 +443,7 @@ else()
try_append_cxx_flags("-Wvla" TARGET warn_interface SKIP_LINK) try_append_cxx_flags("-Wvla" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wshadow-field" TARGET warn_interface SKIP_LINK) try_append_cxx_flags("-Wshadow-field" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wthread-safety" TARGET warn_interface SKIP_LINK) try_append_cxx_flags("-Wthread-safety" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wthread-safety-pointer" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wloop-analysis" TARGET warn_interface SKIP_LINK) try_append_cxx_flags("-Wloop-analysis" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wredundant-decls" TARGET warn_interface SKIP_LINK) try_append_cxx_flags("-Wredundant-decls" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wunused-member-function" TARGET warn_interface SKIP_LINK) try_append_cxx_flags("-Wunused-member-function" TARGET warn_interface SKIP_LINK)