(_getopt_internal): Don't recognize an option name as ambiguous if it's a prefix...

diff --git a/posix/getopt.c b/posix/getopt.c
index f1add57..2ad4ee9 100644 (file)
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -673,7 +673,9 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
                pfound = p;
                indfound = option_index;
              }
-           else
+           else if (pfound->has_arg != p->has_arg
+                    || pfound->flag != p->flag
+                    || pfound->val != p->val)
              /* Second or later nonexact match found.  */
              ambig = 1;
          }