diff --git a/clang/lib/Driver/ToolChains/NetBSD.cpp b/clang/lib/Driver/ToolChains/NetBSD.cpp
--- a/clang/lib/Driver/ToolChains/NetBSD.cpp
+++ b/clang/lib/Driver/ToolChains/NetBSD.cpp
@@ -272,28 +272,25 @@
     CmdArgs.push_back(Args.MakeArgString(ToolChain.getCompilerRTPath()));
   }
 
-  VersionTuple OsVersion = Triple.getOSVersion();
   bool useLibgcc = true;
-  if (OsVersion >= VersionTuple(7) || OsVersion.getMajor() == 0) {
-    switch (ToolChain.getArch()) {
-    case llvm::Triple::aarch64:
-    case llvm::Triple::aarch64_be:
-    case llvm::Triple::arm:
-    case llvm::Triple::armeb:
-    case llvm::Triple::thumb:
-    case llvm::Triple::thumbeb:
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-    case llvm::Triple::ppc64le:
-    case llvm::Triple::sparc:
-    case llvm::Triple::sparcv9:
-    case llvm::Triple::x86:
-    case llvm::Triple::x86_64:
-      useLibgcc = false;
-      break;
-    default:
-      break;
-    }
+  switch (ToolChain.getArch()) {
+  case llvm::Triple::aarch64:
+  case llvm::Triple::aarch64_be:
+  case llvm::Triple::arm:
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
+  case llvm::Triple::ppc:
+  case llvm::Triple::ppc64:
+  case llvm::Triple::ppc64le:
+  case llvm::Triple::sparc:
+  case llvm::Triple::sparcv9:
+  case llvm::Triple::x86:
+  case llvm::Triple::x86_64:
+    useLibgcc = false;
+    break;
+  default:
+    break;
   }
 
   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
@@ -412,26 +409,23 @@
 Tool *NetBSD::buildLinker() const { return new tools::netbsd::Linker(*this); }
 
 ToolChain::CXXStdlibType NetBSD::GetDefaultCXXStdlibType() const {
-  VersionTuple OsVersion = getTriple().getOSVersion();
-  if (OsVersion >= VersionTuple(7) || OsVersion.getMajor() == 0) {
-    switch (getArch()) {
-    case llvm::Triple::aarch64:
-    case llvm::Triple::aarch64_be:
-    case llvm::Triple::arm:
-    case llvm::Triple::armeb:
-    case llvm::Triple::thumb:
-    case llvm::Triple::thumbeb:
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-    case llvm::Triple::ppc64le:
-    case llvm::Triple::sparc:
-    case llvm::Triple::sparcv9:
-    case llvm::Triple::x86:
-    case llvm::Triple::x86_64:
-      return ToolChain::CST_Libcxx;
-    default:
-      break;
-    }
+  switch (getArch()) {
+  case llvm::Triple::aarch64:
+  case llvm::Triple::aarch64_be:
+  case llvm::Triple::arm:
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
+  case llvm::Triple::ppc:
+  case llvm::Triple::ppc64:
+  case llvm::Triple::ppc64le:
+  case llvm::Triple::sparc:
+  case llvm::Triple::sparcv9:
+  case llvm::Triple::x86:
+  case llvm::Triple::x86_64:
+    return ToolChain::CST_Libcxx;
+  default:
+    break;
   }
   return ToolChain::CST_Libstdcxx;
 }