* src/options.c (create_long_option_table): Fix.

[bison.git] / src / options.c

diff --git a/src/options.c b/src/options.c
index c09ef0a55800f87f4c6f46d6c22c446a1e633b3c..37963cd4d6c8800515b3809781fff86ef5037e67 100644 (file)
--- a/src/options.c
+++ b/src/options.c
@@ -142,7 +142,14 @@ create_long_option_table ()
        /* Copy the struct information in the longoptions.  */
        longopts[j].name = option_table[i].name;
        longopts[j].has_arg = option_table[i].has_arg;
-       longopts[j].flag = option_table[i].set_flag;
+       /* When an options is declared having 'optional_argument' and
+          a flag is specified to be set, the option is skipped on 
+          command line. So we never use a flag when a command line
+          option is declared 'optional_argument.  */
+       if (longopts[j].has_arg == optional_argument)
+         longopts[j].flag = NULL;
+       else
+         longopts[j].flag = option_table[i].set_flag;
        longopts[j++].val = option_table[i].val;
       }
   longopts[number_options].name = NULL;