From 0a78e42b1f9d4b49d2b072c953e465d5a9666005 Mon Sep 17 00:00:00 2001
From: Dan Albert <danalbert@google.com>
Date: Wed, 29 Apr 2020 14:14:51 -0700
Subject: [PATCH] Revert "[lld] Remove special cases from default ld driver
 mode."

This reverts commit da093c388fc9a559295faa6265cb8b1643ce9eeb.

Broke a test on Darwin. Will fix the test and resubmit.
---
 lld/tools/lld/lld.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lld/tools/lld/lld.cpp b/lld/tools/lld/lld.cpp
index 8a8f8d0..58a291d 100644
--- a/lld/tools/lld/lld.cpp
+++ b/lld/tools/lld/lld.cpp
@@ -96,9 +96,17 @@ static bool isPETarget(std::vector<const char *> &v) {
 }
 
 static Flavor parseProgname(StringRef progname) {
-  // Use GNU driver for "ld" by default.
+#if __APPLE__
+  // Use Darwin driver for "ld" on Darwin.
+  if (progname == "ld")
+    return Darwin;
+#endif
+
+#if LLVM_ON_UNIX
+  // Use GNU driver for "ld" on other Unix-like system.
   if (progname == "ld")
     return Gnu;
+#endif
 
   // Progname may be something like "lld-gnu". Parse it.
   SmallVector<StringRef, 3> v;
-- 
2.7.4