https://github.com/dankm updated https://github.com/llvm/llvm-project/pull/68011
>From bde5fc6394df80e598835f01d2ab8c0c186a9d5b Mon Sep 17 00:00:00 2001
From: Dan McGregor <dan.mcgre...@usask.ca>
Date: Tue, 25 Jul 2023 18:46:50 -0600
Subject: [PATCH] [Driver] Silence stdlib warning when linking C
Similar to the Gnu toolchain, ignore uses of '-stdlib=libc++' when
linking C code. CMake insists on adding it to the command line when
linking C, and a bunch of other build systems do similarly.
---
clang/lib/Driver/ToolChains/FreeBSD.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/clang/lib/Driver/ToolChains/FreeBSD.cpp
b/clang/lib/Driver/ToolChains/FreeBSD.cpp
index ff4d94c56f0d0ff..4d998e884f8ad42 100644
--- a/clang/lib/Driver/ToolChains/FreeBSD.cpp
+++ b/clang/lib/Driver/ToolChains/FreeBSD.cpp
@@ -356,6 +356,9 @@ void freebsd::Linker::ConstructJob(Compilation &C, const
JobAction &JA,
ToolChain.addProfileRTLibs(Args, CmdArgs);
+ // Silence warnings when linking C code with a C++ '-stdlib' argument.
+ Args.ClaimAllArgs(options::OPT_stdlib_EQ);
+
const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
C.addCommand(std::make_unique<Command>(JA, *this,
ResponseFileSupport::AtFileCurCP(),
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