Display the changes in cross-options.texi.

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index ae54f81c050f6e69e233722a216aca9fd3453743..9ffa4cf583925083c1af67f0221234eea0b5d048 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -246,6 +246,11 @@ usage (int status)
             program_name);
   else
     {
+      /* For ../build-aux/cross-options.pl to work, use the format:
+               ^  -S, --long[=ARGS] (whitespace)
+        A --long option is required.
+        Otherwise, add exceptions to ../build-aux/cross-options.pl.  */
+
       printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
       fputs (_("\
 Generate LALR(1) and GLR parsers.\n\
@@ -361,7 +366,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 `--------------------------------------*/
 
 void
-skeleton_arg (char const *arg, int prio, location const *loc)
+skeleton_arg (char const *arg, int prio, location loc)
 {
   if (prio < skeleton_prio)
     {
@@ -372,15 +377,12 @@ skeleton_arg (char const *arg, int prio, location const *loc)
     {
       char const *msg =
        _("multiple skeleton declarations are invalid");
-      if (loc)
-       complain_at (*loc, msg);
-      else
-       complain (msg);
+      complain_at (loc, msg);
     }
 }
 
 void
-language_argmatch (char const *arg, int prio, location const *loc)
+language_argmatch (char const *arg, int prio, location loc)
 {
   char const *msg;
 
@@ -401,10 +403,7 @@ language_argmatch (char const *arg, int prio, location const *loc)
   else
     return;
 
-  if (loc)
-    complain_at (*loc, msg, arg);
-  else
-    complain (msg, arg);
+  complain_at (loc, msg, arg);
 }
 
 /*----------------------.
@@ -503,7 +502,7 @@ static struct option const long_options[] =
 /* Build a location for the current command line argument. */
 static
 location
-command_line_location()
+command_line_location (void)
 {
   location res;
   /* "<command line>" is used in GCC's messages about -D. */
@@ -535,9 +534,8 @@ getargs (int argc, char *argv[])
           char* value = strchr (optarg, '=');
           if (value)
             *value++ = 0;
-          else
-            value = "";
-          muscle_percent_define_insert (name, command_line_location (), value);
+          muscle_percent_define_insert (name, command_line_location (),
+                                        value ? value : "");
         }
        break;
 
@@ -546,11 +544,13 @@ getargs (int argc, char *argv[])
        break;
 
       case 'L':
-       language_argmatch (optarg, command_line_prio, NULL);
+       language_argmatch (optarg, command_line_prio,
+                          command_line_location ());
        break;
 
       case 'S':
-       skeleton_arg (AS_FILE_NAME (optarg), command_line_prio, NULL);
+       skeleton_arg (AS_FILE_NAME (optarg), command_line_prio,
+                     command_line_location ());
        break;
 
       case 'T':