From 931004e4578333db0429abc7219282dbc0e10076 Mon Sep 17 00:00:00 2001
From: David Henkel-Wallace <gumby@cygnus>
Date: Fri, 19 Apr 1991 18:04:37 +0000
Subject: [PATCH] allow the user to specify a file more than once on the
 command line -- the duplicate references are ignored. ::wq

---
 binutils/ar.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/binutils/ar.c b/binutils/ar.c
index 0ba83ca1dcf..c5478741fa5 100644
--- a/binutils/ar.c
+++ b/binutils/ar.c
@@ -511,7 +511,6 @@ extract_file(abfd)
 		exit(1);
 	    }
 	}
-	/* no need to byte-swap; the two formats are presumably compatible(!) */
 	fwrite(cbuf, 1, nread, ostream);
 	ncopied += tocopy;
     }
@@ -845,6 +844,14 @@ replace_members(files_to_move)
 		if (newer_only) {
 		    struct stat     fsbuf,
 		                    asbuf;
+
+		    if (current->arelt_data == NULL) {
+		      /* This can only happen if you specify a file on the
+			 command line more than once. */
+		      fprintf (stderr, "Duplicate file specified: %s -- skipping.\n", *files_to_move);
+		      goto next_file;
+		    }
+
 		    if (stat(*files_to_move, &fsbuf) != 0) {
 			if (errno != ENOENT)
 			    bfd_fatal(*files_to_move);
-- 
2.30.2