From 65d530f4ece40ce005a0f61ac289b3bd39487613 Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Sat, 16 Jun 2018 10:54:59 +0200
Subject: [PATCH] mescc: Support binutils-2.14: fopen: Return 0 upon failure.

* lib/libc+tcc.c (fopen): Return 0 upon failure.
---
 lib/libc+tcc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/libc+tcc.c b/lib/libc+tcc.c
index 064c2cc4..e2a5a1a4 100644
--- a/lib/libc+tcc.c
+++ b/lib/libc+tcc.c
@@ -229,6 +229,13 @@ fopen (char const *file_name, char const *opentype)
       eputs (" => fd="); eputs (itoa (fd)); eputs ("\n");
     }
 
+  if (!fd)
+    {
+      eputs (" ***MES LIB C*** fopen of stdin: signal me in band\n");
+      exit (1);
+    }
+  if (fd < 0)
+    fd = 0;
   return (FILE*)fd;
 }