gccrs: Add rust_debug_fmt - #4788
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This should allow the use of gcc diagnostic format specifiers in debug diagnostics, in exchange for stricter diagnostic quality checks. gcc/rust/ChangeLog: * rust-diagnostics.cc (rust_debug_fmt_at): New function definition. * rust-diagnostics.h (rust_debug_fmt): New function-like macro definition. (rust_debug_fmt_at): New function declaration. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
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Aug 16, 2026
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This should allow the use of gcc diagnostic format specifiers in debug diagnostics, in exchange for stricter diagnostic quality checks.
Similar to #4783, but doesn't impose diagnostic quality checks on every
rust_debugcall.