commit a3972330f49f81b3bea64af0970d22f42ae56ec3
Author: Martin Liska <mliska@suse.cz>
Date:   Fri Jun 7 07:36:52 2019 +0200

    Fix a missing include of <string>
    
--- a/gold/errors.h
+++ b/gold/errors.h
@@ -24,6 +24,7 @@
 #define GOLD_ERRORS_H
 
 #include <cstdarg>
+#include <string>
 
 #include "gold-threads.h"