commit b00548197542a46df0e46d848ac61a00827943ea

Author: Ulrich Drepper <drepper@gmail.com>

Date:   Mon Jun 30 06:58:52 2014 -0400

        lexsup.c (parse_args): Check whether provided SONAME is empty

        string.  If yes, warn and ignore it.  Don't overwrite valid SONAME

        with empty string.

--- a/ld/lexsup.c	2013-02-27 13:28:03.000000000 -0700

+++ b/ld/lexsup.c	2014-08-12 13:44:20.501609403 -0600

@@ -1110,7 +1110,11 @@ parse_args (unsigned argc, char **argv)

 	  break;

 	case 'h':		/* Used on Solaris.  */

 	case OPTION_SONAME:

-	  command_line.soname = optarg;

+	  if (optarg[0] == '\0' && command_line.soname

+	      && command_line.soname[0])

+	    einfo (_("%P: SONAME must not be empty string; keeping previous one\n"));

+	  else

+	    command_line.soname = optarg;

 	  break;

 	case OPTION_SORT_COMMON:

 	  if (optarg == NULL

@@ -1446,6 +1450,12 @@ parse_args (unsigned argc, char **argv)

 	}

     }

+  if (command_line.soname && command_line.soname[0] == '\0')

+    {

+      einfo (_("%P: SONAME must not be empty string; ignored\n"));

+      command_line.soname = NULL;

+    }

+

   while (ingroup)

     {

       lang_leave_group ();