[clang] [Driver] Disable -faddrsig by default on NetBSD

[mgorny]

Summary

Avoid passing -faddrsig by default on NetBSD. This platform is still
using old GNU binutils that crashes on executables containing those
sections.

lib/Driver/ToolChains/Clang.cpp

if (A->getOption().matches(options::OPT_moutline)) {
       CmdArgs.push_back("-mllvm");
       CmdArgs.push_back("-enable-machine-outliner=never");
     }
   }
 
   if (Args.hasFlag(options::OPT_faddrsig, options::OPT_fno_addrsig,
                    (TC.getTriple().isOSBinFormatELF() ||
                     TC.getTriple().isOSBinFormatCOFF()) &&
-                       TC.useIntegratedAs()))
+                       TC.useIntegratedAs() &&
+                       RawTriple.getOS() != llvm::Triple::NetBSD))
     CmdArgs.push_back("-faddrsig");
 
   // Finally add the compile command to the compilation.
   if (Args.hasArg(options::OPT__SLASH_fallback) &&
       Output.getType() == types::TY_Object &&
       (InputType == types::TY_C || InputType == types::TY_CXX)) {
     auto CLCommand =
         getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput);