diff --git a/lld/tools/lld/lld.cpp b/lld/tools/lld/lld.cpp
--- a/lld/tools/lld/lld.cpp
+++ b/lld/tools/lld/lld.cpp
@@ -77,11 +77,12 @@
   return s == "i386pe" || s == "i386pep" || s == "thumb2pe" || s == "arm64pe";
 }
 
-static bool isPETarget(std::vector<const char *> &v) {
+static bool targetMatches(std::vector<const char *> &v,
+                          std::function<bool(StringRef)> targetFilter) {
   for (auto it = v.begin(); it + 1 != v.end(); ++it) {
     if (StringRef(*it) != "-m")
       continue;
-    return isPETargetName(*(it + 1));
+    return targetFilter(*(it + 1));
   }
   // Expand response files (arguments in the form of @<filename>)
   // to allow detecting the -m argument from arguments in them.
@@ -90,7 +91,7 @@
   for (auto it = expandedArgs.begin(); it + 1 != expandedArgs.end(); ++it) {
     if (StringRef(*it) != "-m")
       continue;
-    return isPETargetName(*(it + 1));
+    return targetFilter(*(it + 1));
   }
   return false;
 }
@@ -129,6 +130,13 @@
     return f;
   }
 
+  // Deduce the flavor from the target.
+  if (targetMatches(v, [](StringRef s) {
+        return s.contains("linux") || s.contains("elf");
+      })) {
+    return Gnu;
+  }
+
   // Deduct the flavor from argv[0].
   StringRef arg0 = path::filename(v[0]);
   if (arg0.endswith_lower(".exe"))
@@ -152,7 +160,7 @@
   std::vector<const char *> args(argv, argv + argc);
   switch (parseFlavor(args)) {
   case Gnu:
-    if (isPETarget(args))
+    if (targetMatches(args, isPETargetName))
       return !mingw::link(args, canExitEarly(), llvm::outs(), llvm::errs());
     return !elf::link(args, canExitEarly(), llvm::outs(), llvm::errs());
   case WinLink: