[clang] [Clang][Driver] Revise Cygwin ToolChain to call linker directly (PR #147960)

[via cfe-commits]

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@@ -1504,6 +1506,7 @@ void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
   switch (Type) {
   case ToolChain::CST_Libcxx:
     CmdArgs.push_back("-lc++");
+    CmdArgs.push_back("-lc++abi");
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jeremyd2019 wrote:

I'm concerned about this change.  Why is this not needed already?  Should Cygwin consider merging libc++abi into libc++ as I think MinGW builds do?

https://github.com/llvm/llvm-project/pull/147960