From a954661d33f6b3e9ff468390d036670e232cdd1a Mon Sep 17 00:00:00 2001
From: Rui Ueyama <ruiu@cs.stanford.edu>
Date: Sat, 27 Mar 2021 17:33:02 +0900
Subject: [PATCH] Use "a.out" as the default output filename

---
 cmdline.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmdline.cc b/cmdline.cc
index 0a522c7e..20b8da9a 100644
--- a/cmdline.cc
+++ b/cmdline.cc
@@ -464,6 +464,6 @@ void parse_nonpositional_args(std::span<std::string_view> args,
       Fatal() << "-auxiliary may not be used without -shared";
   }
 
-  if (config.output == "")
-    Fatal() << "-o option is missing";
+  if (config.output.empty())
+    config.output = "a.out";
 }