Date: Fri, 02 Jan 2026 20:52:29 +0000 From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 02624874966d - stable/13 - bsd.sys.mk: suppress some new clang 21 warnings for C++ Message-ID: <6958300d.bd16.38c638db@gitrepo.freebsd.org>
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The branch stable/13 has been updated by dim: URL: https://cgit.FreeBSD.org/src/commit/?id=02624874966d57e482baa6f0d1e87c37608506dc commit 02624874966d57e482baa6f0d1e87c37608506dc Author: Dimitry Andric <dim@FreeBSD.org> AuthorDate: 2025-12-25 18:44:34 +0000 Commit: Dimitry Andric <dim@FreeBSD.org> CommitDate: 2026-01-02 20:49:54 +0000 bsd.sys.mk: suppress some new clang 21 warnings for C++ Otherwise, these lead to many -Werror warnings in libc++ headers, due to our use of -Wsystem-headers, which is not officially supported upstream: Suppress -Wc++20-extensions, due to: /usr/include/c++/v1/__algorithm/simd_utils.h:96:50: error: explicit template parameter list for lambdas is a C++20 extension [-Werror,-Wc++20-extensions] 96 | inline constexpr size_t __simd_vector_size_v = []<bool _False = false>() -> size_t { | ^ Suppress -Wc++23-lambda-attributes, due to: /usr/include/c++/v1/__format/format_functions.h:462:32: error: an attribute specifier sequence in this position is a C++23 extension [-Werror,-Wc++23-lambda-attributes] 462 | if (bool __is_identity = [&] [[__gnu__::__pure__]] // Make sure the compiler knows this call can be eliminated | ^ Suppress -Wnullability-completeness, due to: /usr/include/c++/v1/string:1068:80: error: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Werror,-Wnullability-completeness] 1068 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 basic_string(const _CharT* __s, size_type __n) { | ^ MFC after: 3 days (cherry picked from commit 63d1c3c43690ff3c3e76e1fb03c8640fe30a2663) --- share/mk/bsd.sys.mk | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk index e537d7f045c4..e3401bb35e77 100644 --- a/share/mk/bsd.sys.mk +++ b/share/mk/bsd.sys.mk @@ -99,6 +99,11 @@ CWARNFLAGS.clang+= -Wno-error=unused-but-set-parameter # Similar to gcc >= 8.1 -Wno-error=cast-function-type below CWARNFLAGS.clang+= -Wno-error=cast-function-type-mismatch .endif +.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 210000 +CXXWARNFLAGS.clang+= -Wno-c++20-extensions +CXXWARNFLAGS.clang+= -Wno-c++23-lambda-attributes +CXXWARNFLAGS.clang+= -Wno-nullability-completeness +.endif .endif # WARNS <= 6 .if ${WARNS} <= 3 CWARNFLAGS.clang+= -Wno-tautological-compare -Wno-unused-value\home | help
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