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

[Tomohiro Kashiwada 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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kikairoya wrote:

It's packaging policy matter, but it would be better to merge libc++abi in libc++ because libc++ can't link to another ABI library. MinGW does so.

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