re PR driver/78206 (bootstrap failure under Apple sandbox that blacklists reads in /usr/local)

2016-11-06  Jack Howarth  <howarth.at.gcc@gmail.com>

	PR driver/78206
	* incpath.c: (remove_dup(): Also silently ignore EPERM.

From-SVN: r241919

gcc/ChangeLog

+2016-11-06  Jack Howarth  <howarth.at.gcc@gmail.com>
+
+	PR driver/78206
+	* incpath.c: (remove_dup(): Also silently ignore EPERM.
+
 2016-11-07  Martin Jambor  <mjambor@suse.cz>
 
 	* tree.c (verify_type_variant): Use pointer comparison to check that

gcc/incpath.c

@@ -253,8 +253,9 @@ remove_duplicates (cpp_reader *pfile, struct cpp_dir *head,
 
       if (stat (cur->name, &st))
 	{
-	  /* Dirs that don't exist are silently ignored, unless verbose.  */
-	  if (errno != ENOENT)
+	  /* Dirs that don't exist or have denied permissions are 
+	     silently ignored, unless verbose.  */
+	  if ((errno != ENOENT) && (errno != EPERM))
 	    cpp_errno (pfile, CPP_DL_ERROR, cur->name);
 	  else
 	    {